Observaciones 2015

Año 2015 – Observaciones Visuales y CCD / DSLR de Cometas.


C/2015 X8 (NEOWISE) (2 observaciones)
2015 Dec. 30.85 UT: m1=13.3, Dia.=1.0′, DC=1; 32-cm L f/5 (144x); Uwe Pilz (Leipzig, Germany)
2015 Dec. 21.25 UT: m1=11.2, Dia.=4′, DC=1/; 20-cm SCT (77x); Juan José González (Alto del Castro – Aralla, alt. 1720 m, León, España) [Más brillante que lo previsto. Coma amplia y difusa. Movimiento seguido durante 80 minutos. Estrellas de campo comprobadas en el DSS. Cielo muy claro de montaña]

C/2015 V2 (Johnson) (1 observación)
2015 Nov. 12.10 UT: m1=15.8, Dia.=0.25′, DC=3; 60.3-cm L (244x); Sandor Szabo (Sopron, Hungary)

C/2015 Q1 (Scotti) (1 observación)
2015 Nov. 12.08 UT: m1=16.0, Dia.=0.2′, DC=3; 60.3-cm L (408x); Sandor Szabo (Sopron, Hungary) [Motion was checked]

C/2015 P3 (SWAN) ( observaciones)
2015 Sep. 11.45 UT: m1=14.7: CCD Dia.=&0.9′; [T31] 0.50-m f/6.8 astrograph + CCD + focal reducer; A. Novichonok & T. Prystavski (iTelescope observatory, Q62 remotely from Siding Spring, Australia)
2015 Aug. 18.37 UT: m1=11.6, Dia.=2.1’, DC=3/; 25-cm L f:5 (83x); [Chris Wyatt (Walcha, NSW, Australia) [Moonlight, zodiacal light interference. Coma very diffuse with brighter and moderately condensed centre. Enhances poorly in Swan Band filter, background sky hazy. Position of Comet is around 6.5’ ahead of predicted position in P.A. 169°, motion confirmed]
2015 Aug. 18.37 UT: m1=12.4 CCD Dia.=2.0′; [T31] 0.50-m f/6.8 astrograph + CCD + focal reducer; A. Novichonok & T. Prystavski (iTelescope observatory, Q62 remotely from Siding Spring, Australia)
2015 Aug. 15.85 UT: m1=10.9, Dia.=2′, DC=3, no cola; 20-cm B (80x); Carlos Labordena (Castellón, España)
2015 Aug. 14.93 UT: m1=10.6, Dia.=2′, DC=3; 22-cm L (60x); Marco Antonio Coelho Goiato (Araçatuba, Brazil)
2015 Aug. 12.93 UT: m1=10.4, Dia.=2.5′, DC=3; 22-cm L (60x); Marco Antonio Coelho Goiato (Araçatuba, Brazil)
2015 Aug. 11.94 UT: m1=10.6, Dia.=2′, DC=3/; 22-cm L (120x); Marco Antonio Coelho Goiato (Araçatuba, Brazil)
2015 Aug. 10.88 UT: m1=10.3, Dia.=2.5′, DC=3; 20-cm SCT (77x); Juan José González (Peñausende, alt. 850 m, Zamora, España) [Objeto MAT01 de la NEOCP, situado en buen acuerdo con las efemérides de Nakano. Más brillante que lo esperado. Estrellas de campo comprobadas en el DSS. Crepúsculo astronómico. Altura sobre el horizonte: 13º]
2015 Aug. 10.35 UT: m1=11.5, Dia.=2.3’, DC=4; 25cm L f:5 (39x); Chris Wyatt (Walcha, NSW, Australia) [Coma appears circular and pale blue in colour, diffuse semi-transparent outer coma, opaque inner coma, moderately condensed centre. Enhances in Swan Band filter. Observed over 50 minute period, motion detected and calculated to an approximate rate of 6.7”/ min travelling in PA 138°. Slight interference from Zodiacal light and twilight. I first spotted the comet at 18:24 (08:24 UT) in approximate position 12h 28m 42s; +10° 19’ 20”]

C/2015 K4 (PANSTARRS) (1 observación)
2015 May  25.90 UT: m1=17.8 CCD + R filter, Dia.=12″, DC=2, Fantail=20″ in PA: 222-277 deg.; Alexander Baransky (Kyiv comet station MPC 585, Ukraine)

C/2015 K1 (MASTER) ( observaciones)
2015 Oct. 03.54 UT: m1=16.2 CCD, Dia.=0.3′; [T31] 0.50-m f/6.8 astrograph + CCD + focal reducer; A. Novichonok & T. Prystavski (iTelescope observatory, Q62 remotely from Siding Spring, Australia)
2015 Sep. 12.95 UT: m1=15.4, Dia.=0.5′, DC=3; 60.3-cm L (305x); Sandor Szabo (Sopron, Hungary)
2015 Aug. 19.97 UT: m1=16.4: CCD, Dia.=&0.3′; 0.08-m f/7.5 refractor + CCD; A. Novichonok, T. Prystavski (Konchezero Stn., Republic of Karelia, Russia)

P/2015 J2 (PANSTARRS) (1 observación)
2015 May  25.97 UT: m1=17.8 CCD + R filter, Dia.=25″, DC=1; 70-cm f/4 L + CCD; Alexander Baransky (Kyiv comet station MPC 585, Ukraine)

C/2015 GX (PANSTARRS) (1 observación)
2015 Nov. 12.11 UT: m1=16.0, Dia.=0.25′, DC=3; 60.3-cm L (305x); Sandor Szabo (Sopron, Hungary) [Motion was checked]

C/2015 G2 (MASTER) ( observaciones)
2015 Nov. 12.06 UT: m1=15.6, Dia.=0.3′, DC=3; 60.3-cm L (305x); Sandor Szabo (Sopron, Hungary)
2015 Oct. 13.49 UT: m1=15.7: CCD, Dia.=&0.5′, Tail=0.9′ in PA: 283 deg.; [T20] 0.1-m f/5.0 astrograph + CCD; A. Novichonok & T. Prystavski (iTelescope observatory, H06 remotely from Mayhill, U.S.A.)
2015 Oct. 11.77 UT: m1=14.5, Dia.=0.4′, DC=2; 40.0-cm L f/4.5 (257x); Seiichi Yoshida (Gunma, Japan)
2015 Sep. 13.48 UT: m1=15.0 CCD, Dia.=0.37′, Tail=&0.7′ in PA: 140 deg.; [T20] 0.1-m f/5.0 astrograph + CCD; A. Novichonok & T. Prystavski (iTelescope observatory, H06 remotely from Mayhill, U.S.A.)
2015 Sep. 13.12 UT: m1=13.8, Dia.=0.4′, DC=2; 60.3-cm L (244x); Sandor Szabo (Sopron, Hungary)
2015 June 21.91 UT: m1=9.0, Dia.=3′, DC=4; 22-cm L (60X); Marco Antonio Coelho Goiato (Araçatuba, Brazil) [Nautical twilight, moonlight]
2015 June 20.34 UT: m1=9.0, Dia.=2.0′, DC=4; 40.6-cm L f/4 (76x); Paul Camilleri (Warners Bay, Australia)
2015 June 16.89 UT: m1=8.5:; 7-cm R (28x): Alexandre Amorim (Florianopolis, Brazil)
2015 June 15.89 UT: m1=8.4, Dia.=3′, DC=4; 7-cm R (28x); Alexandre Amorim (Florianopolis, Brazil)
2015 June 13.92 UT: m1=8.2, Dia.=3.5′, DC=4; 10 B (20X); Marco Antonio Coelho Goiato (Araçatuba, Brazil)
2015 June 12.93 UT: m1=8.0, Dia.=4′, DC=3/; 10 B (20X); Marco Antonio Coelho Goiato (Araçatuba, Brazil)
2015 June 11.92 UT: m1=8.0, Dia.=4′, DC=4; 10 B (20X); Marco Antonio Coelho Goiato (Araçatuba, Brazil)
2015 June 10.89 UT: m1=8.0, Dia.=3′, DC=5; 7-cm R (28x); Alexandre Amorim (Florianopolis, Brazil)
2015 June 10.35 UT: m1=8.3, Dia.=3.7’, DC=5/; 25cm L f:5 (39x); Chris Wyatt (Walcha, NSW, Australia) [Faint transparent tail visible, 4.5’ in length in P.A. 127°; Coma shows diffuse edges, bright opaque centre, pale blue in colour, almost stellar]
2015 June 09.89 UT: m1=8.0, Dia.=3′, DC=5; 7-cm R (28x); Alexandre Amorim (Florianopolis, Brazil)
2015 June 09.35 UT: m1=8.3, Dia.=3.0′, DC=5; 20.3-cm L f/7 (62x); Paul Camilleri (Warners Bay, Australia)
2015 June 08.91 UT: m1=7.7, Dia.=4′, DC=5; 7-cm R (28x); Alexandre Amorim (Florianopolis, Brazil)
2015 June 08.38 UT: m1=8.2, Dia.=2.5′, DC=4/; 20.3-cm L f/7 (62x); Paul Camilleri (Warners Bay, Australia)
2015 June 07.92 UT: m1=7.5:, Dia.=5′, DC=4; 10 B (20X); Marco Antonio Coelho Goiato (Araçatuba, Brazil) [very near a star cluster]
2015 June 07.38 UT: m1=8.3, Dia.=2.5′, DC=4; 20.3-cm L f/7 (62x); Paul Camilleri (Warners Bay, Australia)
2015 June 07.34 UT: m1=8.0, Dia.=3.8’, DC=5/; 25cm L f:5 (39x); Chris Wyatt (Walcha, NSW, Australia) [Faint tail visible, 5’ in length in P.A. 125°; Inner coma bright and opaque, well condensed, outer coma faint and transparent. Coma enhances in Swan Band filter]
2015 June 06.35 UT: m1=8.2, Dia.=3.0′, DC=4; 8-cm R f/5 (36x); Paul Camilleri (Warners Bay, Australia)
2015 June 06.347 UT: m1=8.0, Dia.=3’, DC=5; 0.114m L f8 (43x); Rob Kaufman (Bright, Victoria, Australia) [Brighter small central condensation, poorly-defined. No tail visible. Some LP]
2015 June 05.35 UT: m1=8.2, Dia.=2.0′, DC=5; 20.3-cm L f/7 (62x); Paul Camilleri (Warners Bay, Australia)
2015 June 04.35 UT: m1=8.4, Dia.=2.5′, DC=5; 40.6-cm L f/4 (76x); Paul Camilleri (Warners Bay, Australia)
2015 June 04.33 UT: m1=7.9, Dia.=3.5’, DC=5; 25cm L f:5 (39x); Chris Wyatt (Walcha, NSW, Australia) [Slight twilight interference; Coma dims slightly using Swan Band filter, Outer coma diffuse brightening to an opaque inner coma, almost stellar. Short broad tail 5’ in length in P.A. 132° approximately]
2015 June 03.90 UT: m1=7.4, Dia.=4′, DC=6; 7cm R (28x); Alexandre Amorim (Florianopolis, Brazil)
2015 June 03.35 UT: m1=8.0, Dia.=2.5′, DC=4; 20.3-cm L f/7 (62x); Paul Camilleri (Warners Bay, Australia)
2015 June 02.89 UT: m1=7.2, Dia.=4′, DC=6/; 7cm R (28x); Alexandre Amorim (Florianopolis, Brazil) [moonlight interference]
2015 June 01.35 UT: m1=8.0, Dia.=2.8’, DC=5; 25cm L f:5 (39x); Chris Wyatt (Walcha, NSW, Australia) [Moonlight; Coma has diffuse edges, brightens gradually to an opaque inner coma and moderately condensed, but not stellar, central condensation. Enhances well in Swan Band filter, hint of outer coma elongation to SE and NW. No tail visible]
2015 May  29.91 UT: m1=6.7, Dia.=5′, DC=5; 10×50 B; Alexandre Amorim (Florianopolis, Brazil) [moonlight interference]
2015 May  29.91 UT: m1=7.1, Dia.=5′, DC=4; 15×70 B; Willian Souza (Sao Paulo, Brazil)
2015 May  29.35 UT: m1=6.9, Dia.=4.0′, DC=4; 8-cm B (20x); Paul Camilleri (Warners Bay, Australia)
2015 May  28.36 UT: m1=6.8, Dia.=4.0′, DC=4; 8-cm B (20x); Paul Camilleri (Warners Bay, Australia)
2015 May  27.91 UT: m1=6.9, Dia.=5′, DC=4; 15×70 B; Willian Souza (Sao Paulo, Brazil)
2015 May  26.98 UT: m1=7.8, Dia.=2′, DC=3/, Tail= no visible; 15×70 B; Roberto Condori (OAN MPC820, Tarija, Bolivia)
2015 May  26.94 UT: m1=6.7, Dia.=8′, DC=4/; 10cm B (20X); Marco Antonio Coelho Goiato (Araçatuba, Brazil) [moonlight]
2015 May  26.93 UT: m1=6.6, Dia.=9′, DC=4; 5cm B (7X); Marco Antonio Coelho Goiato (Araçatuba, Brazil) [moonlight]
2015 May  25.32 UT: m1=6.6, Dia.=8.5′, DC=5; 11×70 B; Con Stoitsis (Caulfield, Victoria, Australia)
2015 May  24.36 UT: m1=6.6, Dia.=6.0′, DC=4/; 8-cm B (20x); Paul Camilleri (Warners Bay, Australia)
2015 May  23.94 UT: m1=6.4, Dia.=10′, DC=4; 5 B (7X); Marco Antonio Coelho Goiato (Araçatuba, Brazil) [moonlight]
2015 May  23.94 UT: m1=6.5, Dia.=8′, DC=4/; 10 B (20X); Marco Antonio Coelho Goiato (Araçatuba, Brazil) [moonlight]
2015 May  23.92 UT: m1=6.5, Dia.=8′, DC=4; 10×50 B; Willian Souza (Olimpia, Brazil)
2015 May  23.90 UT: m1=6.5:, Dia.=5′, DC=5; 10×50 B; Alexandre Amorim (Florianopolis, Brazil) [close to 6.3-mag star]
2015 May  23.365 UT: m1=6.6, Dia.=8’, DC=4; 10×50 B; Rob Kaufman (Bright, Victoria, Australia] [Outer coma faint – coma brightens inwards to small brighter central condensation visible in moments of good seeing; coma appears slightly elongated to E. No tail visible. Moonlight]
2015 May  23.36 UT: m1=6.5, Dia.=7.0′, DC=6; 8-cm R (15x); Paul Camilleri (Warners Bay, Australia)
2015 May  22.97 UT: m1=6.5, Dia.=4′, DC=4/, Tail= no visible; 15×70 B; Roberto Condori (OAN MPC820, Tarija, Bolivia)
2015 May  22.92 UT: m1=6.5, Dia.=9′, DC=5; 10×50 B; Alexandre Amorim (Florianopolis, Brazil)
2015 May  22.92 UT: m1=6.4, Dia= 10′, DC=5; 10×50 B; Willian Souza (Taquaritinga, Brazil)
2015 May  22.92 UT: m1=6.4, Dia.=10′, DC=4/; 5 B (7X); Marco Antonio Coelho Goiato (Araçatuba, Brazil) [moonlight]
2015 May  21.97 UT: m1=6.4, Dia.=3.7′, DC=4; 25cm L (66x); Gonzalo Vargas (Cochabamba Bolivia)
2015 May  21.93 UT: m1=6.4, Dia.=8′, DC=5; 10×50 B; Alexandre Amorim (Florianopolis, Brazil)
2015 May  21.92 UT: m1=6.3, Dia.=8′, DC=5; 10×50 B; Willian Souza (Sao Paulo, Brazil)
2015 May  20.38 UT: m1=6.4, Dia.=9’, DC=4; 10×50 B; Rob Kaufman (Bright, Victoria, Australia] [Outer coma faint – coma brightens inwards; star-like central condensation faintly visible in moments of good seeing, otherwise diffuse appearance. No tail visible]
2015 May  18.96 UT: m1=5.5, Dia.=5′, DC=6/, Tail= no visible; 15×70 B; Roberto Condori (OAN MPC820 Tarija, Bolivia) [Alt:35°, * comparación HD: 36473  5.53 y HD: 35991 6.08]
2015 May  18.35 UT: m1=6.2, Dia.=14’, DC=6; 7×50 B; Chris Wyatt (Walcha, NSW, Australia) [No tail; outer coma diffuse, opaque inner coma with bright and stellar central condensation, pale green in colour]
2015 May  16.37 UT: m1=6.0, Dia.=8.0′, DC=6; 8-cm B (20x); Paul Camilleri (Warners Bay, Australia)
2015 May  16.365 UT: m1=6.2, Dia.=9’, DC=6; 10×50 B; Rob Kaufman (Bright, Victoria, Australia) [Outer coma faint – coma brightens inwards towards star-like central condensation. No tail visible]
2015 May  16.35 UT: m1=6.1, Dia.=12′, DC=5; 10×50 B; David A. J. Seargent (Cowra, NSW, Australia)
2015 May  14.35 UT: m1=6.0, Dia.=8.0′, DC=6; 8-cm B (20x); Paul Camilleri (Warners Bay, Australia)
2015 May  14.35 UT: m1=6.0, Dia.=14’, DC=6; 7×50 B; Chris Wyatt (Walcha, NSW, Australia) [Low altitude = 14.4°; Coma has diffuse edges, brightening to an opaque inner coma and small stellar centre. Close to mag 7.9 (TK) star, 6.6’ away in P.A. 047°; Central condensation enhances strongly in Swan Band filter, outer coma only slightly enhances, inner coma is a pale blue-green colour. Through the 11×70 B’s there appears to be an elongation or extension of the coma approximately 7’ in length to the South approximately, no definite tail visible. Through the 10” f/5 dob at x39 an ion tail can be traced to 40’ in length in P.A. 170°, although very thin, faint and transparent]
2015 May  13.81 UT: m1=6.0, Dia.=5.0′, DC=5; 8-cm B (20x); Paul Camilleri (Warners Bay, Australia)
2015 May  13.35 UT: m1=6.0, Dia.=5.0′, DC=5; 8-cm B (20x); Paul Camilleri (Warners Bay, Australia)
2015 May  12.36 UT: m1=6.0:, Dia.=&5′, DC=6; 15×70 B; Willian Souza (Sao Paulo, Brazil) [comet altitude ~11deg.]
2015 May  12.35 UT: m1=6.1, Dia.=15.5’, DC=6; 7×50 B; Chris Wyatt (Walcha, NSW, Australia) [Low altitude = 8.6°; No tail, coma large with diffuse outer coma, bright opaque inner coma with stellar central condensation. Coma is aqua-blue in colour, more intense in the centre; Using the 10” f/5 dob @ x39 the coma has a slight tinge of green]
2015 May  11.81 UT: m1=6.0, Dia.=5.0′, DC=6; 8-cm B (20x); Paul Camilleri (Warners Bay, Australia)
2015 May  11.36 UT: m1=6.0, Dia.=8′, DC=6; 10×50 B; Alexandre Amorim (Florianopolis, Brazil) [nautical twilight]
2015 May  10.80 UT: m1=6.0, Dia.=5.0′, DC=5; 20x 80 B; Paul Camilleri (Warners Bay, NSW, Australia)
2015 May  10.35 UT: m1=6.0, Dia.=10′, DC=5/; 15×70 B; Willian Souza (Sao Paulo, Brazil)
2015 May  09.80 UT: m1=6.4, Dia.=8.0′, DC=5/; 20x 80 B; Paul Camilleri (Warners Bay, NSW, Australia)
2015 May  09.35 UT: m1=6.0, Dia.=10′, DC=5; 5 B (7X); Marco Antonio Coelho Goiato (Araçatuba, Brazil) [moonlight, atmospheric extinction applied – average table, comet altitude: 16º]
2015 May  09.34 UT: m1=6.0, Dia.=10′, DC=5; 10×50 B; Alexandre Amorim (Florianopolis, Brazil) [moonlight interference]
2015 May  08.80 UT: m1=6.6, Dia.=7.0′, DC=5; 20x 80 B; Paul Camilleri (Warners Bay, NSW, Australia)
2015 May  08.78 UT: m1=6.6, Dia.=6.2’, DC=5/; 7×50 B; Chris Wyatt (Walcha, NSW, Australia) [Moonlight; Coma round in appearance, faintly stellar with a bright opaque inner coma fading to a diffuse outer coma. No tail visible. Coma enhances strongly in Swan Band filter]
2015 May  07.80 UT: m1=6.6, Dia.=6.0′, DC=5; 20x 80 B; Paul Camilleri (Warners Bay, NSW, Australia)
2015 May  07.33 UT: m1=6.6:;10×50 B; Alexandre Amorim (Florianopolis, Brazil) [moonlight and nebulosity interference]
2015 May  06.77 UT: m1=6.8, Dia.=5.8’, DC=5/; 7×50 B; Chris Wyatt (Walcha, NSW, Australia) [Moonlight; Coma diffuse with bright central condensation, sometimes appears faintly stellar. No tail visible due to washed out background sky; Enhances well in Swan Band filter]
2015 May  06.34 UT: m1=6.8, Dia.=6′, DC=6; 10×50 B; Alexandre Amorim (Florianopolis, Brazil) [moonlight interference]
2015 May  05.76 UT: m1=6.7, Dia.=5.2’, DC=5; 11×70 B; Chris Wyatt (Walcha, NSW, Australia) [Moonlight; Coma round in appearance, bright central condensation but not stellar, pale aqua-blue in colour at coma edge and more intense in colour to centre, enhances strongly in Swan Band filter]
2015 May  05.34 UT: m1=7.0:, Dia.=7′, DC=6; 10×50 B; Alexandre Amorim (Florianopolis, Brazil) [moonlight and clouds interference]
2015 May  01.33 UT: m1=7.5, Dia.=9′, DC=6; 10×50 B; Alexandre Amorim (Florianopolis, Brazil)
2015 May  01.32 UT: m1=7.0, Dia.=6′, DC=5/, Tail= 20 arcmin in PA 230º; 10 B (20X); Marco Antonio Coelho Goiato (Araçatuba, Brazil)
2015 May  01.33 UT: m1=6.9, Dia.=8′, DC=4/; 5 B (7X); Marco Antonio Coelho Goiato (Araçatuba, Brazil)
2015 Apr. 29.80 UT: m1=7.5, Dia.=7.5′, DC=6; 11×70 B; Con Stoitsis (Clonbinane, Victoria, Australia)
2015 Apr. 29.33 UT: m1=7.7, Dia.=3′, DC=5; 15×70 B; Willian Souza (Sao Paulo, Brazil)
2015 Apr. 28.76 UT: m1=7.6, Dia.=8’, DC=4; 10×50 B; Rob Kaufman (Bright, Victoria, Australia) [Outer coma faint – coma brightens inwards towards ill-defined central condensation. No tail visible. Altitude 29 degrees]
2015 Apr. 27.72 UT: m1=7.7, Dia.=5.3’, DC=5/; 25cm L f:5 (39x); Chris Wyatt (Walcha, NSW, Australia) [Faint ion tail visible, traced to 15’ in length in PA 245°, 1.8’ in width. Coma shows diffuse edges and gradually brightening to a luminous pale aqua-blue inner coma with a faint stellar centre. Enhances strongly in Swan Band filter]
2015 Apr. 27.34 UT: m1=7.8, Dia.=8′, DC=5; 10×50 B; Alexandre Amorim (Florianopolis, Brazil)
2015 Apr. 26.77 UT: m1=7.8, Dia.=7.0′, DC=5/; 20x 80 B; Paul Camilleri (Warners Bay, NSW, Australia)
2015 Apr. 26.32 UT: m1=7.5, Dia.=5′, DC=4; 5 B (7X); Marco Antonio Coelho Goiato (Araçatuba, Brazil)
2015 Apr. 26.31 UT: m1=7.8, Dia.=5′, DC=5/, Tail= 15 arcmin in PA: 240º; 10 B (20X); Marco Antonio Coelho Goiato (Araçatuba, Brazil)
2015 Apr. 25.77 UT: m1=8.0, Dia.=4.8′, DC=6; 40.6cm L f/4 (76x); Paul Camilleri (Warners Bay, NSW, Australia)
2015 Apr. 25.33 UT: m1=8.0, Dia.=5′, DC=5/; 10×50 B; Alexandre Amorim (Florianopolis, Brazil)
2015 Apr. 25.32 UT: m1=8.0, Dia.=3′, DC=5/; 8-cm R f/7.5 (26x); Willian Souza (Sao Paulo, Brazil)
2015 Apr. 24.82 UT: m2=11.5 CCD, Dia.=&9.5′, Tail=&1.1 deg in PA: 239 deg.; [T12]0.11m f/5.0 refractor + CCD; A. Novichonok & T. Prystavski (iTelescope observatory, Q62 (remotely from Siding Spring, Australia)
2015 Apr. 21.32 UT: m1=8.3, Dia.=5′, DC=5; 10 B (20X); Marco Antonio Coelho Goiato (Araçatuba, Brazil)
2015 Apr. 19.79 UT: m1=8.5, Dia.=3′, DC=5/; 25×100 B; Michael Mattiazzo (Swan Hill, Victoria, Australia) [In same field of view as Helix Nebula. Tycho 2 VT magnitude comparisons. Sidgwick method]
2015 Apr. 16.29 UT: m1=8.8, Dia.=3′, DC=6; 8-cm R f/7.5 (40x); Willian Souza (Sao Paulo, Brazil)
2015 Apr. 15.77 UT: m1=8.5, Dia.=3.5′, DC=5; 40.6cm L f/4 (76x); Paul Camilleri (Warners Bay, NSW, Australia)
2015 Apr. 15.74 UT: m1=8.9, Dia.=4.2’, DC=5; 25cm L f:5 (39x); Chris Wyatt (Walcha, NSW, Australia) [Moonlight; Coma enhances strong in Swan Band filter, no tail visible. Pale aqua-blue in colour, intensity increases at centre]
2015 Apr. 12.32 UT: m1=9.2, Dia.=3′, DC=4; 18cm L (57x); Alexandre Amorim (Florianopolis, Brazil) [moonlight interference]
2015 Apr. 12.31 UT: m1=8.9, Dia.=3′, DC=5; 22-cm L (60x); Marco Antonio Coelho Goiato (Araçatuba, Brazil) [Moonlight, enhanced with Swan band filter]
2015 Apr. 11.35 UT: m1=8.9, Dia.=3′, DC=5; 22-cm L (60x); Marco Antonio Coelho Goiato (Araçatuba, Brazil) [Moonlight, clouds]
2015 Apr. 11.32 UT: m1=9.4, Dia.=2.5′, DC=5; 18cm L (57x); Alexandre Amorim (Florianopolis, Brazil) [moonlight interference]
2015 Apr. 10.34 UT: m1=9.4, Dia.=2′, DC=5; 18cm L (45x); Alexandre Amorim (Florianopolis, Brazil)[moonlight interference]
2015 Apr. 09.75 UT: m1=9.7; Dia.=4’, DC=5/; 25cm L f:5 (39x); Chris Wyatt (Walcha, NSW, Australia) [Moonlight; Pale aqua-blue coma has diffuse edges, gradually brightening to an almost stellar central condensation. At x83 the central condensation is faintly stellar and the outer coma appears elongated slightly to the NW. Enhances strongly in Swan Band filter]
2015 Apr. 09.34 UT: m1=10.0, Dia.=1.5′, DC=6; 18cm L (45x); Alexandre Amorim (Florianopolis, Brazil)[moonlight interference]
2015 Apr. 08.73 UT: m1=9.9, Dia.=2.7’, DC=5/; 25cm L f:5 (39x); Chris Wyatt (Walcha, NSW, Australia) [Moonlight; Enhances strongly in Swan Band filter. Coma diffuse with brighter, well condensed central condensation. Altitude = 22.8°. No tail]

C/2015 F5 (SWAN-Xingming) ( observaciones)
2015 May  18.89 UT: m1=[11.9, Dia.=1.2′, NEGATIVE; 7.6-cm L f/4 (38x); Marek Biely (Brno, Czech Republic) [It has faded out very quickly. Fainter than 11.9 mag.]
2015 May  12.86 UT: m1=15.9 CCD + R filter, Dia.=37″, DC=2; 70-cm f/4 L + CCD; Alexander Baransky (Kyiv comet station MPC 585, Ukraine)
2015 May  11.85 UT: m1=13.2, Dia.=1.5′, DC=0; 50.8 cm L (189x); Sandor Szabo (Sopron, Hungary)
2015 May  10.91 UT: m1=12.8, Dia.=0.7′, DC=1; 32cm L f/5 (120x); Uwe Pilz (Leipzig, Germany)
2015 May  07.90 UT: m1=12.0, Dia.=2.0′, DC=3; 30.5cm L F/4.9 (93x); J. P. Navarro Pina (El Palmar, Murcia, Spain)
2015 May  05.91 UT: m1=15.7 CCD + R filter, Dia.=46″, DC=1; 70-cm f/4 L + CCD; Alexander Baransky (Kyiv comet station MPC 585, Ukraine)
2015 May  03.56 UT: m1=12.8: CCD, Dia.=&2.0′; 0.4-m f/2.3 reflector + CCD Exposure = 810 sec (22 frames) 2.7″/px; T. Namkhai, S. Schmalz, T. Prystavski ISON-Hureltogoot Observatory, O75 (Bogd Khan Mountain, Mongolia) [m2=16.5, Af(Rho)=8.4±2]
2015 May  02.47 UT: m1=[12.0; 40.0cm L f/4.5 (144x); Seiichi Yoshida (Gunma, Japan)
2015 May  01.45 UT: m1=11.6:, Dia.=1.5′, DC=1; 40.0cm L f/4.5 (144x); Seiichi Yoshida (Gunma, Japan)
2015 May  01.15 UT: m1=12.0: CCD, Dia.=&2.3′; [T20] 0.11-m f/5.0 refractor + CCD; A. Novichonok & T.Prystavski (iTelescope observatory, H06 remotely Mayhill, U.S.A.) [interference by Moon: Moon phase 0.92, altitude 50 deg.]
2015 Apr. 26.85 UT: m1=10.8, Dia.=3′, DC=3; 30,5-cm L f/4.9 (60x); J. P. Navarro Pina (El Palmar, Murcia, Spain)
2015 Apr. 26.82 UT: m1=11.0 CCD, Dia.=2′, DC=2; Digital Reflex+0,3m lens; Giuseppe Pappa (Sicily, Italy)
2015 Apr. 25.12 UT: m1=10.9: CCD, Dia.=&4.0′; [T20] 0.11-m f/5.0 refractor + CCD; A. Novichonok & T. Prystavski (iTelescope observatory, H06 remotely Mayhill, U.S.A.) [interference by Moon: Moon phase 0.42, altitude 54 deg.]
2015 Apr. 24.84 UT: m1=10.4, Dia.=2.3′, DC=2/; 7.6-cm L f/4 (38x); Marek Biely (Brno, Czech Republic) [It became fainter and more diffuse within several days. Slight interference of moonlight]
2015 Apr. 23.13 UT: m1=[11.3; 15-cm T (37.5x); Salvador Aguirre (Observatorio Real del Molinito, Hermosillo, Sonora, Mexico)
2015 Apr. 22.89 UT: m1=10.0, Dia.=3′, DC=1; 20cm L f:4 (42x); Alex Scholten (Eerbeek, Netherlands)
2015 Apr. 21.95 UT: m1=10.8, Dia.=2.1′, DC=3/; 40cm L (57x); Jakub Cerný (Zachotin, Czech Republic)
2015 Apr. 21.83 UT: m1=9.8, Dia.=2.7′, DC=3, 7.6-cm L f/4 (38x); Marek Biely (Brno, Czech Republic) [Not easy to see it, it is very diffuse]
2015 Apr. 20.917 UT: m1=10.2, Dia.=2′, DC=2; 11.4cm L f/8 (45x); Neil Norman (Ipswich, England)
2015 Apr. 20.84 UT: m1=10.3, Dia.=2′, DC=2; 25.4cm L f/5 (64x); Maik Meyer (Limburg, Germany) [comet enhanced and more condensed using a Lumicon Swan Band filter; movement noticeable w/in minutes]
2015 Apr. 19.89 UT: m1=9.9, Dia.=2′, DC=1; 20cm L f:4 (80x); Alex Scholten (Eerbeek, Netherlands)
2015 Apr. 19.83 UT: m1=10.2, Dia.=1.8′, DC=2; 25.4cm L f/5 (64x); Maik Meyer (Limburg, Germany)
2015 Apr. 19.13 UT: m1=10.5, Dia.=3′, DC=3; 35.5-cm (93x); Carl Hergenrother (Tucson, AZ, USA)
2015 Apr. 18.83 UT: m1=11.5, Dia.=1.0′, DC=1/; 32cm L f/5 (120x); Uwe Pilz (Leipzig, Germany)
2015 Apr. 17.92 UT: m1=10.0, Dia.=~2′, DC=2; 20cm L f:4 (80x); Alex Scholten (Eerbeek, Netherlands)
2015 Apr. 16.78 UT: m1=9.5 CCD, Dia.=3′, DC=3; Digital Reflex+0,3m lens; Giuseppe Pappa (Sicily, Italy)
2015 Apr. 15.86 UT: m1=10.5: CCD Dia.=&3.4′, Tail=&13.5′ in PA: 356 deg; 0.4-m f/2.3 reflector + CCD; T. Namkhai, S. Schmalz, T. Prystavski (ISON-Hureltogoot Observatory, O75 (Bogd Khan Mountain, Mongolia) [Morning twilight]
2015 Apr. 15.83 UT: m1=10.4, Dia.=2.0′, DC=3/; 32cm L f/5 (120x); Uwe Pilz (Leipzig, Germany)
2015 Apr. 15.83 UT: m1=10.4:, Dia.=1.8′, DC=2; 25.4cm L f/5 (106x); Uwe Pilz (Leipzig, Germany)
2015 Apr. 15.80 UT: m1=10.1, Dia.=2.0′, DC=5; 25cm L (77x); Sandor Szabo (Sopron, Hungary)
2015 Apr. 14.903 UT: m1=10, Dia.=2′, DC=2; 11.4cm L f/8 (45x) Neil Norman (Ipswich, England)
2015 Apr. 13.86 UT: m1=9.2, Dia.=3.7′, DC=4; 20-cm L (66.7x); Artyom Novichonok (Chalna fields, Russia)
2015 Apr. 12.86 UT: m1=9.9: CCD Dia.=&3.1′, Tail=&18′ in PA: 328 deg; 0.4-m f/2.3 reflector + CCD; T. Namkhai, S. Schmalz, T. Prystavski (ISON-Hureltogoot Observatory, O75 Bogd Khan Mountain, Mongolia) [Morning twilight]
2015 Apr. 11.86 UT: m1=9.9: CCD Dia.=&2.7′, Tail=&10.5′ in PA: 325 deg; 0.4-m f/2.3 reflector + CCD; T. Namkhai, S. Schmalz, T. Prystavski (ISON-Hureltogoot Observatory, O75 (Bogd Khan Mountain, Mongolia) [Morning twilight]
2015 Apr. 08.88 UT: m1=10.2: CCD Dia.=&1.5′; 0.4-m f/2.3 reflector + CCD; T. Namkhai, S. Schmalz, T. Prystavski (ISON-Hureltogoot Observatory, O75 (Bogd Khan Mountain, Mongolia) [Morning twilight]
2015 Apr. 07.88 UT: m1=9.8: CCD Dia.=&1.5′, Tail=&6.4′ in PA 298 deg; 0.4-m f/2.3 reflector + CCD; T. Namkhai, S. Schmalz, T. Prystavski (ISON-Hureltogoot Observatory, O75 (Bogd Khan Mountain, Mongolia) [Morning twilight]

C/2015 F4 (Jacques) ( observaciones)
2015 Nov. 11.84 UT: m1=14.2, Dia.=0.9′, DC=1; 60.3-cm L (244x); Sandor Szabo (Sopron, Hungary)
2015 Oct. 11.56 UT: m1=13.2, Dia.=0.9′, DC=5; 40.0-cm L f/4.5 (144x); Seiichi Yoshida (Gunma, Japan)
2015 Oct. 10.79 UT: m1=12.9, Dia.=0.8′, DC=2; 32.0-cm L f/5 (96x); Uwe Pilz (Leipzig, Germany)
2015 Oct. 05.84 UT: m1=12.4 DSRL, Dia.=2′, DC=2; Digital Reflex+0,3m lens; Giuseppe Pappa (Sicily, Italy)
2015 Nov. 03.73 UT: m1=[12.5, negative; 20-cm L (222.2x); Artyom Novichonok (Konchezero station, Russia)
2015 Oct. 03.09 UT: m1=12.7: CCD, Dia.=&1.2′, Tail=&1.6′ in PA: 121 deg.; [T20] 0.1-m f/5.0 astrograph + CCD; A. Novichonok & T. Prystavski (iTelescope observatory, H06 remotely from Mayhill, U.S.A.) [poor quality image: a lot of bad pixels and artefatcs visible]
2015 Sep. 20.88 UT: m1=[11.7, Dia.=1.3′, NEGATIVE (!); 7.6-cm f/4 L (38x); Marek Biely (Brno, Czech Republic) [Already not visible. Fainter than 11.7 mag]
2015 Sep. 18.89 UT: m1= 12.2, Dia=2′, DC=3, no cola, 20cm B(80x); Carlos Labordena (Castellón, España)
2015 Sep. 17.91 UT: m1=12.4, Dia.=0.7′, DC=5, Tail= 0.03 deg. PA: 121 deg.; 32.0cm L f/5 (96x); Uwe Pilz (Leipzig, Germany)
2015 Sep. 17.90 UT: m1=12.3: DSRL, Dia.=&1.0′, Tail=&2.3′ in PA: 135 deg.; 0.20-m f/4 reflector + DSLR camera; Taras Prystavski (Lviv, Ukraine) [Red light pollution zone, Bortle sky class=6]
2015 Sep. 14.86 UT: m1=12.2: CCD, Dia.=2.1′, Tail=6.8′ in PA: 143 deg.; [T16] 0.15-m f/7.3 refractor + CCD; A. Novichonok & T.Prystavski (AstroCamp Observatory, I89 remotely from Nerpio, Spain)
2015 Sep. 08.03 UT: m1=11.5, Dia.=1.3′, DC=3; 20-cm SCT (133x); Juan José González (Alto del Castro, alt. 1720 m, León, España)
2015 Sep. 05.898 UT: m1=10.8, Dia.=2′, DC=4; 11.4cm L f/8 (45x); Neil Norman (Ipswich, England)
2015 Aug. 24.92 UT: m1=11.5: DSRL, Dia.=&1.3′, Tail=&2.1′ in PA: 158 deg.; 0.20-m f/4 reflector + DSLR camera; Taras Prystavski (Lviv, Ukraine) [Red light pollution zone, Bortle sky class=6]
2015 Aug. 23.84 UT: m1=–.-: (Tri-G), Dia.=1.5′, Tail=2.7′; Nikon 5200 + 100-mm lens; Artyom Novichonok (Konchezero, Russia)
2015 Aug. 21.90 UT: m1=11.3, Dia.=1.0′, DC=6, Tail=1.5 deg. in PA: 124 deg.; 32.0-cm L f/5 (96x); Uwe Pilz (Leipzig, Germany)
2015 Aug. 19.90 UT: m1=11.4 CCD, Dia.=1.58′; 6.8-cm R f/3.8; Mieczyslaw L. Paradowski (Lublin, Poland)
2015 Aug. 19.88 UT: m1=11.3: CCD, Dia.=2.4′, Tail=5.0′ in PA: 154 deg.; 0.08-m f/7.5 refractor + CCD; A. Novichonok, T. Prystavski  Konchezero Stn., Republic of Karelia, Russia
2015 Aug. 19.87 UT: m1=11.9 CCD, Dia.=1.81′; 6.8-cm R f/3.8; Mieczyslaw L. Paradowski (Lublin, Poland)
2015 Aug. 18.94 UT: m1=11.0, Dia.=1.5′, DC=4; 20-cm SCT (77x); Juan José González (Cueto Rosales, alt. 1420 m, León, España)
2015 Aug. 16.93 UT: m1=10.9: CCD, Dia.=&2.7′, Tail=&10.1′ in PA: 167 deg.; 0.07-m f/6 refractor + CCD; A. Novichonok, K. Nezgovorov & T. Prystavski (Petrozavodsk State University Observatory, C30 (Sheltozero Stn., Russia)
2015 Aug. 15.92 UT: m1=10.8, Dia.=2.5′, DC=4, no cola; 20-cm B (50x); Carlos Labordena (Castellón, España)
2015 Aug. 14.90 UT: m1=10.7: CCD, Dia.=&1.9′, Tail=&3.0′ in PA: 168 deg;. 0.07-m f/6 refractor + CCD; A. Novichonok, K. Nezgovorov & T. Prystavski (Petrozavodsk State University Observatory, C30 (Sheltozero Stn., Russia)
2015 Aug. 13.91 UT: m1=11.8, Dia.=0.6′, DC=6, Tail= 3.0’ long to PA: 115 deg.; 60.3-cm L (244x); Sandor Szabo (Sopron, Hungary)
2015 Aug. 13.87 UT: m1=10.5, Dia.=1.4′, DC=5; 20×80 B (20x); Marek Biely (Brno, Czech Republic) [Still visible well]
2015 Aug. 12.88 UT: m1=10.9, Dia.=1.3′, DC=4/, Tail= 1 arcmin. in PA: 150 deg.; 25.5-cm L (70.6x); Danil Sidorko (Mezmay, Russia)
2015 Aug. 12.86 TU: m1=11.3, Dia.=1.7, DC=3/; 15.2-cm R f/5 (63x); Maik Meyer (Limburg, Germany)
2015 Aug. 12.83 UT: m1=10.9, Dia.=1.5′, DC=4/, Tail= 1.7 arcmin. in PA: 160 deg.; 25.5-cm L (120x); Danil Sidorko (Mezmay, Russia)
2015 Aug. 11.85 UT: m1=11.0 DSRL, Dia.=2′, DC=5; Digital Reflex+0,3m lens; Giuseppe Pappa (Sicily, Italy)
2015 Aug. 10.88 UT: m1=10.6, Dia.=0.9′, DC=6/; 20×80 B; Marek Biely (Brno, Czech Republic) [Nice tiny and very condensed object located near the zenith. Easy target for binoculars despite the brightness]
2015 Aug. 08.94 UT: m1=10.8, Dia.=1.5′, DC=5; 20-cm SCT (77x); Juan José González (Cueto Rosales, alt. 1420 m, León, España) [Observable un corto tramo de cola en A.P. 160º]
2015 Aug. 08.91 UT: m1=11.3, Dia.=1.0′, DC=7/; 25×100 B; Jakub Cerny (Senohraby, Czech Republic)
2015 Aug. 08.81 UT: m1=10.8, Dia.=1.5′, DC=3.5, Tail= 2 arcmin. in PA: 153 deg.; 25.5-cm L (70.6x); Danil Sidorko (Mezmay, Russia)
2015 Aug. 07.87 UT: m2=13.3 DSRL, Dia.=&1.0′, Tail=&1.7′ in PA: 149 deg.; 0.20-m f/4 reflector + DSLR camera; Taras Prystavski (Lviv, Ukraine) [Red light pollution zone, Bortle sky class=6]
2015 Aug. 07.83 UT: m1=11.3, Dia.=1.5′, DC=3; 15.2-cm R f/5 (63x); Maik Meyer (Limburg, Germany)
2015 Aug. 07.06 UT: m1=10.5, Dia.=2.5′, DC=4; 22-cm L (60x); Marco Antonio Coelho Goiato (Araçatuba, Brazil)
2015 Aug. 06.89 UT: m1=11.5, Dia.=1.4′, DC=6, Tail= 2 arcmin. PA: 203 deg.; 32-cm L f/5 (96x); Uwe Pilz (Leipzig, Germany)
2015 Aug. 06.88 UT: m1=11.4:, Dia.=1.3′, DC=3; 15.2-cm R f/5 (63x); Maik Meyer (Limburg, Germany)
2015 Aug. 05.04 UT: m1=10.3, Dia.=2.5′, DC=3/; 22-cm L (60x); Marco Antonio Coelho Goiato (Araçatuba, Brazil)
2015 July 29.01 UT: m1=10.9, Dia.=1.3′, DC=3/; 15.0-cm R f/5 (63x); Maik Meyer (Limburg, Germany)
2015 July 26.22 UT: m1=10.6, Dia.=2′, DC=4; 22-cm L (60X); Marco Antonio Coelho Goiato (Araçatuba, Brazil)
2015 July 26.10 UT: m1=10.5; 18-cm L (45x); Alexandre Amorim (Florianopolis, Brazil) [moonlight]
2015 July 26.03 UT: m1=11.0, Dia.=2.1, DC=4/; 15.0-cm R  f/5 (63x); Maik Meyer (Limburg, Germany)
2015 July 23.85 UT: m1=10.8, Dia.=1.5’, DC=6; 25.4-cm L (60x); Vyacheslav M. Ivanov (Kamysin, Russia) [Small and very compact coma, wind 1-2m/s, t +13°C. LM=6.5m]
2015 July 22.13 UT: m1=10.4, Dia.=2′, DC=5; 18-cm L (45x); Alexandre Amorim (Florianopolis, Brazil)
2015 July 21.87 UT: m1=10.8 DSRL, Dia.=2′, DC=4; Digital Reflex+0,3m lens; Giuseppe Pappa (Sicily, Italy)
2015 July 19.03 UT: m1=11.0, Dia.=0.7′, DC=6, Tail=4′ PA: 190 deg.; 25-cm L (65x); Valentín Díaz (Puebla de Don Fadrique, Granada, España)
2015 July 18.92 UT: m1=10.4, Dia.=2.3′, DC=3/; 15.0-cm R f/5 (63x); Maik Meyer (Limburg, Germany)
2015 July 18.90 UT: m1=10.8, Dia.=0.6′, DC=6, Tail= 3’ to PA: 205 deg.; 60.3 cm L (187x); Sandor Szabo (Sopron, Hungary)
2015 July 17.96 UT: m1=10.9, Dia.=1′, DC=3; 30.5-cm L f/4,9 (93x); J. P. Navarro Pina (El Palmar, Murcia, Spain)
2015 July 16.87 UT: m1=10.7, Dia.=2′, DC=4/; 15.0-cm R f/5 (63x); Maik Meyer (Frauenstein, Erzgebirge Mts., Germany)
2015 July 18.03 UT: m1=10.5, Dia.=2.2′, DC=4/; 15.0-cm R f/5 (63x); Maik Meyer (Limburg, Germany)
2015 July 16.83 UT: m1=11.0 CCD, Dia.=2.5′, DC=5; Digital Reflex+0,3m lens; Giuseppe Pappa (Sicily, Italy)
2015 July 15.83 UT: m1=11.2, Dia.=1′, DC=2/, Tail=1.5 arcmin in PA: 195 deg.; 25.5-cm L (120x); Danil Sidorko (Korenovsk, Russia)
2015 July 14.86 UT: m1=11.2 DSRL, Dia.=2′, DC=4; Digital Reflex+0,3m lens; Giuseppe Pappa (Sicily, Italy)
2015 July 14.14 UT: m1=10.8, Dia.=2.5′, DC=4; 22-cm L (60x); Marco Antonio Coelho Goiato (Araçatuba, Brazil)
2015 July 14.05 UT: m1=10.7, Dia.=2.2′, DC=5, Tail=0.1º en AP: 210º; 20-cm SCT (77x); Juan José González (Santiago Millás, alt. 930 m, León, España)
2015 July 13.85 UT: m1=11.4, Dia.=1.3′, DC=5, Tail=2 arcmin in PA: 210 deg; 25.5-cm L (70.6x); Danil Sidorko (Korenovsk, Russia)
2015 July 11.97 UT: m2=13.0 CCD, Dia.=&4.3′ Tail=&19.5′ in PA: 211 deg.; [T16] 0.15-m f/7.3 refractor + CCD; A. Novichonok & T. Prystavski (AstroCamp Observatory, I89 remotely from Nerpio, Spain)
2015 July 11.97 UT: m1=10.5, Dia.=0.5′, DC=6, Tail=0.02 deg. PA: 194 deg.; 32.0-cm L f/5 (96x); Uwe Pilz (Leipzig, Germany)
2015 July 11.93 UT: m1=11.2, Dia.=1.0′, DC=6/, Tail=0.05 deg. in PA: 215 deg.; 35-cm L (178x); Jakub Černý (Zachotin, Czech Republic)
2015 July 10.95 UT: m1=11.2, Dia.=1.0′, DC=7, Tail= 0.05 deg in PA: 205 deg.; 35-cm L (178x); Jakub Cerný (Zachotin, Czech Republic)
2015 July 10.92 UT: m1=11.0, m2=13.7 (starlike nucleus), Dia.=1.0′, DC=s6, Tail=0.12 deg. in PA: 205 deg. (a bit fan-shaped); 25×100 B & 25-cm L (150x); Gábor Sánta (Zlatibor, Serbia)
2015 July 10.21 UT: m1=11.1, Dia.=2.5′, DC=4; 22-cm L (60x); Marco Antonio Coelho Goiato (Araçatuba, Brazil)
2015 July 08.52 UT: m1=11.3, Dia.=2.6′; 25.4-cm L (71x); David A. J. Seargent (Cowra, NSW, Australia)
2015 July 07.49 UT: m1=11.6, Dia.=1.3’, DC=5/; 25cm L f:5 (83x); Chris Wyatt (Walcha, NSW, Australia) [Does not enhance in Swan Band filter; Coma shows diffuse edges, opaque inner coma, pale blue in colour. Tail visible 2.3’ in length in PA: 225°]
2015 June 27.73 UT: m1=11.7, Dia.=1.4’, DC=6; 25cm L f:5 (83x); Chris Wyatt (Walcha, NSW, Australia) [Does not enhance in Swan Band filter; Faint tail 2.5 in length, 1’ in width approximately, in P.A. 221°; Small diffuse coma, opaque inner coma brightening to small stellar centre, m2= 14.3]
2015 June 27.01 UT: m1=11.6, Dia.=2.5′, DC=1; 30.5-cm L f/4.9 (93x); J. P. Navarro Pina (El Palmar, Murcia, Spain)
2015 June 26.73 UT: m1=11.6, Dia.=2.3’, DC=5; 25cm L f:5 (83x); Chris Wyatt (Walcha, NSW, Australia) [Does not enhance in Swan Band filter; Coma elongated to the South-West approximately, compact opaque inner coma with diffuse transparent outer coma, central condensation not quite stellar]
2015 June 26.20 UT: m1=11.2, Dia.=2′, DC=4; 22-cm L (60x); Marco Antonio Coelho Goiato (Araçatuba, Brazil)
2015 June 23.99 UT: m1=11.8, Dia.=2′.1, DC=6; 35-cm L (107x); Jakub Cerny (Senohraby, Czech Republic)
2015 June 22.78 UT: m1=11.7, Dia.=1.0′, DC=4; 40.6-cm L f/4 (165x); Paul Camilleri (Warners Bay, Australia)
2015 June 22.75 UT: m1=12.2, Dia.=1.2’, DC=5/; 25cm L f:5 (83x); Chris Wyatt (Walcha, NSW, Australia) [Coma does not enhance in Swan band filter. Coma elongated to the SW, inner coma opaque and shows elongation to SW, with small central condensation, diffused outer coma]
2015 June 21.79 UT: m1=11.7, Dia.=1.2′, DC=4; 40.6-cm L f/4 (76x); Paul Camilleri (Warners Bay, Australia)
2015 June 21.01 UT: m1=11.8, Dia.=2′, DC=4, no cola; 15cm T (27x); Carlos Labordena (Castellón, España)
2015 June 20.28 UT: m1=12.3 CCD, Dia.=0.4’; Measures taken on CCD images unfiltered; Pierre Laporte (Cd’OA des Monts Notre-Dame, Québec, Canada)
2015 June 20.21 UT: m1=11.5, Dia.=2′, DC=4; 22-cm L (120X); Marco Antonio Coelho Goiato (Araçatuba, Brazil) [No enhancement with Swan band filter]
2015 June 19.60 UT: m1=11.8; Dia.=2.0’; DC=3; 25cm L f:5 (39x); Chris Wyatt (Walcha, NSW, Australia) [Coma diffuse with slightly brighter centre. At x83 the coma appears elongated to the SW, central condensation sometimes stellar in good seeing. Coma does not enhance in Swan Band filter]
2015 June 18.08 UT: m1=11.4, Dia.=2.5′, DC=4/; 20-cm SCT (77x); Juan José González (Alto del Castro, alt. 1720 m, León, España) [Más brillante que lo previsto. Movimiento seguido durante 60 minutos. Estrellas de campo comprobadas en el DSS. Estrellas de comparación de la fotometría APASS cercana al cometa. Cielo muy claro de montaña]
2015 June 17.77 UT: m1=12.2, Dia.=1.0′, DC=4; 40.6-cm L f/4 (76x); Paul Camilleri (Warners Bay, Australia)
2015 June 14.79 UT: m1=12.5, Dia.=1.0′, DC=4; 40.6-cm L f/4 (76x); Paul Camilleri (Warners Bay, Australia)
2015 June 14.37 UT: m1=12.0 CCD, Dia.=1.8′ Tail=5.5′ in PA: 231 deg.; [T20] 0.1-m f/5.0 astrograph + CCD; A. Novichonok & T. Prystavski (iTelescope observatory, H06 remotely from Mayhill, U.S.A.)
2015 June 08.78 UT: m1=12.9, Dia.=0.6′, DC=4; 40.6-cm L f/4 (165x); Paul Camilleri (Warners Bay, Australia)
2015 May  31.81 UT: m1=13.2, Dia.=0.8′, DC=4; 40.6-cm L f/4 (165x); Paul Camilleri (Warners Bay, Australia)
2015 May  25.73 UT: m1=13.4, Dia.=0.5′, DC=4; 40.6-cm L f/4 (165x); Paul Camilleri (Warners Bay, Australia)
2015 May  23.74 UT: m1=13.7, Dia.=0.4′, DC=3/; 40.6-cm L f/4 (165x); Paul Camilleri (Warners Bay, Australia)
2015 May  15.76 UT: m1=13.8, Dia.=0.5′, DC=3; 40.6-cm L f/4 (165x); Paul Camilleri (Warners Bay, Australia)
2015 Apr. 24.71 UT: m1=14.8 CCD, Dia.=0.50′, Tail=2.1′ in PA 236 deg; [T12]0.11m f/5.0 refractor + CCD; A. Novichonok & T. Prystavski (iTelescope observatory, Q62 remotely from Siding Spring, Australia)

C/2015 F3 (SWAN) ( observaciones)
2015 May  18.90 UT: m1=[11.7, Dia.=1.1′, NEGATIVE; 7.6-cm L f/4 (38x); Marek Biely (Brno, Czech Republic) [No surprise that it was already not visible as it was fading and getting diffuse rapidly before. Fainter than 11.7 mag.]
2015 May  12.92 UT: m1=15.7 CCD + R filter, Dia.=42″, DC=1; 70-cm f/4 L + CCD; Alexander Baransky (Kyiv comet station MPC 585, Ukraine)
2015 May  10.92 UT: m1=13.5, Dia.=1.3′, DC=2; 32 cm L f/5 (120x); Uwe Pilz (Leipzig, Germany)
2015 May  10.92 UT: m1=13.9, Dia.=1.5′, DC=0/; 35 cm L (239x); Jakub Cerny (Senohraby, Czech Republic) [No enhancement of coma using SWAN band filter]
2015 May  07.77 UT: m1=12.5, Dia.=1′, DC=2; 25.5-cm L (70.6x); Danil Sidorko (Korenovsk, Russia)
2015 May  05.88 UT: m1=15.4 CCD + R filter, Dia.=40″, DC=2, Fantail=3′ in PA: 330-117 deg.; 70-cm f/4 L + CCD; Alexander Baransky (Kyiv comet station MPC 585, Ukraine)
2015 May  05.87 UT: m1=12.5, Dia.=2′, DC=1/; 15-cm f/7 R (65x); Alexander Baransky (Lisnyky, MPC 585, Ukraine)
2015 May  01.75 UT: m1=12.7, Dia.=1.4′, DC=2; 40.0cm L f/4.5 (144x); Seiichi Yoshida (Gunma, Japan)
2015 Apr. 26.86 UT: m1=11.5, Dia.=2′, DC=3; 30,5-cm L f/4.9 (60x); J. P. Navarro Pina (El Palmar, Murcia, Spain)
2015 Apr. 26.83 UT: m1=11.5 DSRL, Dia.=2′, DC=2; Digital Reflex+0,3m lens; Giuseppe Pappa (Sicily, Italy)
2015 Apr. 25.07 UT: m1=11.2:, Dia.=&2′, DC=0; 7.6-cm L f/4 (38x); Marek Biely (Brno, Czech Republic) [Already extremely faint spot with no condensation. Limit observation]
2015 Apr. 22.06 UT: m1=9.9, Dia.=2.4′, DC=1/; 7.6-cm L f/4 (38x); Marek Biely (Brno, Czech Republic) [Comet is higher in the morning. Thanks to it I could see much larger coma and estimated it much brighter]
2015 Apr. 21.94 UT: m1=11.3, Dia.=3.0′, DC=1; 25×100 B; Jakub Cerný (Zachotin, Czech Republic) [Very faint, almost invisible in 40-cm reflector with no or very low condensation]
2015 Apr. 21.85 UT: m1=10.7:, Dia.=&1.5′, DC=0/; 7.6-cm L f/4 (38x); Marek Biely (Brno, Czech Republic) [Extremely faint and diffuse. Limit observation]
2015 Apr. 20.94 UT: m1=13.6 CCD + R filter, Dia.=1’30”, DC=2; 70-cm f/4 L + CCD; Alexander Baransky (Kyiv comet station MPC 585, Ukraine)
2015 Apr. 20.88 UT: m1=14.7 CCD + R filter, Dia.=36″, DC=3. Tail: >6′ in PA: 345 deg.; 70-cm f/4 L + CCD; Alexander Baransky (Kyiv comet station MPC 585, Ukraine)
2015 Apr. 18.84 UT: m1=12.0, Dia.=1.2′, DC=0; 32cm L f/5 (120x); Uwe Pilz (Leipzig, Germany)
2015 Apr. 17.95 UT: m1=10.2, Dia.=~3′, DC=1; 20cm L f:4 (42x); Alex Scholten (Eerbeek, Netherlands)
2015 Apr. 15.84 UT: m1=13.5, Dia.=0.5′, DC=1; 32cm L f/5 (120x); Uwe Pilz (Leipzig, Germany)
2015 Apr. 15.81 UT: m1=12.2, Dia.=1.6′, DC=1; 25cm L (100x); Sandor Szabo (Sopron, Hungary)
2015 Apr. 14.896 UT: m1=9.9,Dia=3′,DC=4; 11.4cm L f/8 (45x) Neil Norman (Ipswich, England)
2015 Apr. 12.81 UT: m1=12.2, Dia.=1.0′, DC=1; 40cm L (154x); Sandor Szabo (Sopron, Hungary)
2015 Apr. 11.896 UT: m1=9.9, Dia.=3′, DC=2; 11.4cm L f/8 (45x); Neil Norman (Ipswich, England)
2015 Apr. 10.85 UT: m1=14.5 CCD + R filter, Dia.=30″, Tail=1′ in PA: 334-13 deg.; 70-cm f/4 L + CCD; Alexander Baransky (Kyiv comet station MPC 585, Ukraine)
2015 Apr. 10.81 UT: m1=11.7, Dia.=1.0′, DC=1; 40cm L (154x); Sandor Szabo (Sopron, Hungary)
2015 Apr. 09.90 UT: m1=9.9, Dia.=2.5′, DC=2; 20×60 B; Alexander Baranky (Bucha, Ukraine)
2015 Abr. 07.90 UT: m1=9.5, Dia.=5′, DC=2; 20cm SCT (77x); Juan José González (Alto del Cellerón, alt. 1190 m, León, España) [La coma aparece más difusa y también más amplia que la mostrada en mi observación previa de Mar. 28.17 (m1=10.1), ofreciendo una estimación más brillante: m1=9.5. Cielo muy claro de montaña]
2015 Apr. 07.15 UT: m1=10.8 DSRL, Dia.=2′, DC=2; Digital reflex + 0,3m lens; Giuseppe Pappa (Sicily, Italy)
2015 Apr. 06.917 UT: m1=10.3, Dia.=2′, DC-2; 11.4cm L f/8 (45x); Neil Norman (Ipswich, England)
2015 Apr. 06.78 UT: m1=10.7 DSRL, Dia.=2′, DC=2; Digital reflex + 0,3m lens; Giuseppe Pappa (Sicily, Italy)
2015 Apr. 05.79 UT: m1=11.0 DSRL, Dia.=2′, DC=4; Digital Reflex + 0,3m lens; Giuseppe Pappa (Sicily, Italy)
2015 Apr. 05.82 UT: m1=10.5, Dia.=1.8′, DC=2; 15.0cm R f/5 (63x); Maik Meyer (Frauenstein, Erzgebirge Mts., Germany)
2015 Mar. 31.80 UT: m1=9.8, Dia.=1.0′; 12.0cm R f/5 (50x); Uwe Pilz (Leipzig, Germany)
2015 Mar. 30.16 UT: m1=11.0 DSRL, Dia.=2′, DC=4; Digital Reflex+0.3m lens; Giuseppe Pappa (Sicily, Italy)
2015 Mar. 29.17 UT: m1=10.4, Dia.=3′, DC=3, no cola; 15cm T (27x); Carlos Labordena (Castellón, España)
2015 Mar. 28.40 UT: m1=10.6, Dia.=2′, DC=3; 30.5cm L f/4.9 (88x); Todd Augustyniak (Spring Grove, Illinois, USA) [Diffuse with slight brightening towards center.  Visibility enhanced with a Lumicon Comet Filter.  Movement tracked for an hour]
2015 Mar. 28.16 UT: m1=10.0, Dia.=3′, DC=3/; 25×100 B; Juan José González (Alto de la Camperona – Sotillos de Sabero, alt. 1600 m, León, España) [En 20 cm SCT (100x): m1=10.1, Dia.=4′, DC=3; Estrellas de campo comprobadas en el DSS. Coma elongada en AP 0º. Movimiento rápido seguido durante 30 minutos. Altura sobre el horizonte : 16º. Cielo muy claro de montaña]
2015 Mar. 27.43 UT: m1=10.5, Dia.=3′, DC=3; 37-cm L (64x and 142x); Bob King [Fairly diffuse object that brightened somewhat with a Swan-band filter. Easy low power object]
2015 Mar. 26.47 UT: m1=10.3, Dia.=2.3′; 20cm L (43x); Alan Hale (Cloudcroft, New Mexico, USA)
2015 Mar. 26.06 UT: m1=11.0: CCD Dia.=&3.8′, Tail=&12.5′ in PA: 356 deg; 0.3-m f/1.5 astrograph + CCD; G. Borisov & T. Prystavski (MARGO – MPC L51 Crimea-Nauchnij)

C/2015 F2 (Polonia) ( observaciones)
2015 June 12.33 UT: m1=13.1: CCD, Dia.=&2.2′; [T20] 0.1-m f/5.0 astrograph + CCD; A. Novichonok & T. Prystavski (iTelescope observatory, H06 remotely from Mayhill, U.S.A.)
2015 May  20.99 UT: m1=14.8 CCD + R filter, Dia.=35″, DC=4, Tail=5′ in PA: 251 deg.; 70-cm f/4 L + CCD; Alexander Baransky (Kyiv comet station MPC 585, Ukraine)
2015 Apr. 24.70 UT: m1=12.0: CCD, Dia.=&3.2′; [T12]0.11m f/5.0 refractor + CCD; A. Novichonok & T. Prystavski (iTelescope observatory, Q62 remotely from Siding Spring, Australia)

P/2015 F1 (PANSTARRS) ( observaciones)
2015 May  25.98 UT: m1=16.0 CCD + R filter, Dia.=18″, DC=4, Tail=35″ in PA: 279 deg.; 70-cm f/4 L + CCD; Alexander Baransky (Kyiv comet station MPC 585, Ukraine)
2015 Apr. 22.06 UT: m1=18.0 CCD + R filter, Dia.=8″, DC 4, Tail=16″ in PA: 243 deg.; 70-cm f/4 L + CCD; Alexander Baransky (Kyiv comet station MPC 585, Ukraine)

P/2015 D5 (Kowalski) (1 observación)
2015 Mar. 17.04 UT: m1=18.6 CCD + R filter, Dia.=7″, DC 4, Fantile 15″ in PA: 165-247 deg.; 70-cm f/4 L + CCD; Alexander Baransky (Kyiv comet station MPC 585, Ukraine)

C/2015 D4 (Borisov) (1 observación)
2015 Feb. 23.12 CCD, m1=16.7 CCD Dia.=0.4′; 0.3-m f/1.5 astrograph + CCD; G. Borisov & T. Prystavski (MARGO – MPC L51 Crimea-Nauchnij) [possible tail &0.7′ long in PA 179 deg]

C/2015 D1 (SOHO) remanente/remnant: ( observaciones)
2015 Mar. 09.84 UT: m1=8.5; 20cm SCT (77x); Juan José González (Camposagrado, alt.1190 m, León, España) [Para la zona de 6′ percibida como ligeramente más brillante. En esta sesión, la distribución de las estrellas de campo perjudicaba a la observación detallada de la morfología global del remanente]
2015 Mar. 07.84 UT: m1=7.8, Dia.=6′, DC=1; 20cm SCT (77x); Juan José González (Camposagrado, alt.1190 m, León, España) [El muy difuso remanente del cometa se percibía con una morfología similar a una cola, observada a lo largo de 0.4º de eje menor (en AP 80º) y 0.1º de eje menor. La magnitud estimada (7.8) se refiere a una zona casi circular de 6′ de diámetro, con un grado de condensación y brillo percibido ligeramente mayores que el resto, estando su centro geométrico localizado aproximadamente en A.R.= 0h50m.5 y Decl.=+28o29′.0, del orden de 15′ en separación respecto a la posición de efemérides en AP 20º. Estrellas de campo comprobadas en el DSS. Crepúsculo astronómico. Luz zodiacal. Cielo muy claro de montaña]

C/2015 C2 (SWAN) ( observaciones)
2015 July 12.87 UT: m1=17.0: CCD, Dia.=0.4′; [T16] 0.15-m f/7.3 refractor + CCD; A. Novichonok & T. Prystavski (AstroCamp Observatory, I89 remotely from Nerpio, Spain)
2015 May  25.84 UT: m1=14.4 CCD + R filter, Dia.=38″, DC=5S, Tail=48″ in PA: 240-319 deg.; 70-cm f/4 L + CCD; Alexander Baransky (Kyiv comet station MPC 585, Ukraine) [Star-like inner coma, short parabolic tail]
2015 May  19.02 UT: m1=[11.8, Dia.=1.4′, NEGATIVE; 7.6-cm L f/4 (38x); Marek Biely (Brno, Czech Republic) [Definitely not visible. Fainter than 11.8 mag.]
2015 May  16.11 UT: m1=11.8, Dia.=1.2′, DC=3; 20cm SCT (133x); Juan José González (Cueto Rosales, alt. 1420 m, León, España)
2015 May  01.77 UT: m1=11.0:, Dia.=1.0′, DC=2; 40.0cm L f/4.5 (144x); Seiichi Yoshida (Gunma, Japan)
2015 Apr. 25.08 UT: m1=[11.4, Dia.=1.8′, NEGATIVE (!); 7.6-cm L f/4 (38x); Marek Biely (Brno, Czech Republic) [Already not visible. Fainter than 11.4 mag. Slight interference of astronomical twilight]
2015 Apr. 22.08 UT: m1=10.7:, Dia.=&1.5′, DC=3/; 7.6-cm L f/4 (38x); Marek Biely (Brno, Czech Republic) [Low altitude: 11.2 deg. above the horizon. The comet was very faintly visible only thanks to clear sky. Limit observation. Slight interference of astronomical twilight]
2015 Mar. 18.76 UT: m1=9.5, Dia.=1.2′, DC=3; 50.8 cm L (189x); Sandor Szabo (Sopron, Hungary)
2015 Mar. 09.82 UT: m1=9.2, Dia.=3′, DC=2/; 20cm SCT (100x); Juan José González (Camposagrado, alt.1190 m, León, España) [Más brillante que lo esperado. Condensación central casi estelar, con m2=12.0 aproximada (fotometría APASS cercana al cometa). Estrellas de campo comprobadas en el DSS. Altura sobre el horizonte: 7º. Crepúsculo astronómico. Luz zodiacal. Cielo muy claro de montaña]

P/2015 C1 (TOTAS-Gibbs) (1 observación)
2015 Mar. 17.02 UT: m1=17.8 CCD + R filter, Dia.=7″, DC 8; 70-cm f/4 L + CCD; Alexander Baransky (Kyiv comet station MPC 585, Ukraine)

C/2014 Y1 (PANSTARRS) ( observaciones)
2015 Apr. 22.21 UT: m1=17.3: CCD; [T20] 0.1-m f/5.0 astrograph + CCD; A. Novichonok & T. Prystavski (iTelescope observatory, H06 remotely from Mayhill, U.S.A.)
2015 Mar. 30.88 UT: m1=16.5: CCD, Dia.=&0.5′; [T16] 0.15-m f/7.3 refractor + CCD; A. Novichonok & T.Prystavski (AstroCamp Observatory, I89 remotely from Nerpio, Spain)
2015 Mar. 21.88 UT: m1=17.9: CCD + R filter, Dia.=10″, DC=2; 70-cm f/4 L + CCD; Alexander Baransky (Kyiv comet station MPC 585, Ukraine)
2015 Mar. 16.93 UT: m1=17.3 CCD + R filter, Dia.=15″, DC 3, Fantile 16″ in PA: 16-106 deg.; 70-cm f/4 L + CCD; Alexander Baransky (Kyiv comet station MPC 585, Ukraine)
2015 Mar. 10.90 UT: m1=16.9 CCD + R filter, Dia.=12″, DC 3, 70-cm f/4 L + CCD; Alexander Baransky (Kyiv comet station MPC 585, Ukraine)
2015 Feb. 14.39 UT: m1=16.2 CCD, Dia.=0.4′; [T20] 0.1-m f/5.0 astrograph + CCD; A. Novichonok & T. Prystavski (iTelescope observatory, H06 remotely from Mayhill, U.S.A.)
2015 Jan. 17.49 UT: m1=16.6 CCD Dia.=0.34′; [T20] 0.1-m f/5.0 astrograph + CCD; A. Novichonok & T. Prystavski (iTelescope observatory, H06, remotely from Mayhill, U.S.A.)

P/2014 X1 (Elenin) ( observaciones)
2015 Apr. 19.88 UT: m1=16.6 CCD, Dia.=0.3′; [T16] 0.15-m f/7.3 refractor + CCD; A. Novichonok & T. Prystavski (AstroCamp Observatory, I89 remotely from Nerpio, Spain)
2015 Mar. 25.24 UT: m1=17.0: CCD; [T20] 0.1-m f/5.0 astrograph + CCD; A. Novichonok & T. Prystavski (iTelescope observatory, H06 remotely from Mayhill, U.S.A.)
2015 Mar. 18.87 UT: m1=15.8, Dia.=0.1′, DC=7; 50.8 cm L (351x); Sandor Szabo (Sopron, Hungary) [Motion was checked during 30 min. period]
2015 Mar. 16.96 UT: m1=15.8 CCD + R filter, Dia.=14″, DC 6, Tail=30″ in PA: 146 deg.; 70-cm f/4 L + CCD; Alexander Baransky (Kyiv comet station MPC 585, Ukraine)
2015 Mar. 10.86 UT: m1=15.8 CCD + R filter, Dia.=15″, DC 5, Tail=20″ in PA: 140 deg.; 70-cm f/4 L + CCD; Alexander Baransky (Kyiv comet station MPC 585, Ukraine)
2015 Feb. 16.92 UT: m1=16.3 CCD + R filter, Dia.=19″, DC 7, Tail=25″ in PA: 136 deg.; 70-cm f/4 L + CCD; Alexander Baransky (Kyiv comet station MPC 585, Ukraine)

C/2014 W11 (PANSTARRS) ( observaciones)
2015 July 18.35 UT: m1=14.3 CCD, Dia.=0.4′; [T31] 0.50-m f/6.8 astrograph + CCD + focal reducer; A. Novichonok & T. Prystavski (iTelescope observatory, Q62 remotely from Siding Spring, Australia)
2015 May  21.85 UT: m1=14.4 CCD + R filter, Dia.=15″, DC=5D, Short fantail=25″ in PA: 16-140 deg. Alexander Baransky, Kyiv comet station – MPC 585)
2015 May  11.88 UT: m1=13.8, Dia.=0.7′, DC=5; 50.8 cm L (245x); Sandor Szabo (Sopron, Hungary)
2015 May  10.87 UT: m1=14.5, Dia.=0.8′, DC=5; 35cm L (239x); Jakub Cerny (Senohraby, Czech Republic)
2015 Apr. 12.82 UT: m1=14.6, Dia.=0.4′, DC=4; 40cm L (250x); Sandor Szabo (Sopron, Hungary)
2015 Apr. 09.39 UT: m1=14.2 CCD, Dia.=0.5′, Tail=0.4′ in PA 62 deg; [T17] 0.43-m f/6.8 astrograph + CCD; A. Novichonok & T. Prystavski (iTelescope observatory, Q62 remotely Siding Spring, Australia)
2015 Mar. 17.86 UT: m1=14.6, Dia.=0.3′, DC=6; 50.8 cm L (307x) ; Sandor Szabo (Sopron, Hungary)
2015 Mar. 16.99 UT: m1=14.5 CCD + R filter, Dia.=24″, DC 8S, Tail=33″ in PA: 338-53 deg.; 70-cm f/4 L + CCD; Alexander Baransky (Kyiv comet station MPC 585, Ukraine)
2015 Mar. 14.43 UT: m1=14.6, Dia.=0.3’, DC=2/; 25cm L f:5 (166x); Chris Wyatt (Walcha, NSW, Australia) [Coma very small and diffuse, visible in good seeing]
2015 Mar. 11.90 UT: m1=14.6 CCD, Dia.=0.6′; [T16] 0.15-m f/7.3 refractor + CCD; A. Novichonok & T. Prystavski (AstroCamp Observatory, I89 remotely from Nerpio, Spain)
2015 Mar. 10.94 UT: m1=14.7 CCD + R filter, Dia.=22″, DC 8S, Tail=35″ in PA: 5-62 deg.; 70-cm f/4 L + CCD; Alexander Baransky (Kyiv comet station MPC 585, Ukraine)
2015 Mar. 09.42 UT: m1=14.6, Dia.=0.3’, DC=2/; 25cm L f:5 (166x); Chris Wyatt (Walcha, NSW, Australia) [Coma very small and diffuse, slightly brighter to centre. Visible in periods of good seeing, windy conditions, slight interference from Moonrise]
2015 Feb. 22.49 UT: m1=14.7 CCD, Dia.=0.2′ Tail=0.2′ in PA 314 deg; [T9] 0.32-m f/7.4 Ritchey-Chretien + CCD; A. Novichonok & T. Prystavski (iTelescope observatory, Q62 remotely from Siding Spring, Australia)
2015 Feb. 17.00 UT: m1=14.5 CCD + R filter, Dia.=22″, DC 8S, Tail=40″ in PA: 312 deg.; 70-cm f/4 L + CCD; Alexander Baransky (Kyiv comet station MPC 585, Ukraine)
2015 Feb. 15.81 UT: m1=14.6, Dia.=0′.5, DC=5, 35 cm reflector (239x); Jakub Cerný (Zachotin, Czech Republic)
2015 Jan. 16.46 UT: m1=15.5 CCD; [T20] 0.1-m f/5.0 astrograph + CCD; A. Novichonok & T. Prystavski (iTelescope observatory, H06, remotely from Mayhill, U.S.A.)
2015 Jan. 15.05 UT: m1=15.2 CCD + R filter, Dia.=12″, DC 8S, Tail=15″ in PA: 293 deg.; 70-cm f/4 L + CCD; Alexander Baransky (Kyiv comet station MPC 585, Ukraine)

C/2014 W9 (PANSTARRS) ( observaciones)
2015 Mar. 28.38 UT: m1=16.0: CCD, Dia.=0.4′; [T20] 0.1-m f/5.0 astrograph + CCD; A. Novichonok & T. Prystavski (iTelescope observatory, H06 remotely from Mayhill, U.S.A.)
2015 Feb. 14.46 UT: m1=16.1 CCD, Dia.=0.4′; [T20] 0.1-m f/5.0 astrograph + CCD; A. Novichonok & T. Prystavski (iTelescope observatory, H06 remotely from Mayhill, U.S.A.)
2015 Jan. 20.48 UT: m1=16.2 CCD, Dia.=0.4′; [T20] 0.1-m f/5.0 astrograph + CCD; A. Novichonok & T. Prystavski (iTelescope observatory, H06, remotely from Mayhill, U.S.A.)

C/2014 W2 (PANSTARRS) ( observaciones)
2015 Dec. 29.88 UT: m1=12.5 DSLR, Dia.=1′; canon 1100d+300mm lens; Giuseppe Pappa (Mascalucia, Sicily, Italy)
2015 Dec. 29.79 UT: m1=11.1, Dia.=1.5′, DC=2; 11.4-cm L f/8 (45x); Neil Norman (Ipswich, England)
2015 Dec. 08.84 UT: m1=11.9, Dia.=2′, DC=2; 20.0-cm SCT (80x); Carlos Labordena (Castellón, España)
2015 Dec. 06.72 UT: m1=12.5 DSLR, Dia.=1.5′; digital reflex+0.3m lens; Giuseppe Pappa (Sicily, Italy)
2015 Dec. 03.77 UT: m1=12.7 DSLR, Dia.=1′; digital reflex+0.3m lens; Giuseppe Pappa (Sicily, Italy)
2015 Nov. 30.83 UT: m1=11.1, Dia.=4′, DC=2/: 20-cm SCT (77x); Juan José González (Alto del Trichero – Soto y Amío, alt. 1190 m, León, España)
2015 Nov. 30.72 UT: m1=13.0 DSLR, Dia.=1′; digital reflex+0.3m lens; Giuseppe Pappa (Sicily, Italy)
2015 Nov. 23.23 UT: m1=11.0, Dia.=4′, DC=2/; 20-cm SCT (77x); Juan José González (Peña Nebina – Ferreruela de Tábara, alt. 970 m, Zamora, España) [Débil coma externa. Cielo muy claro de montaña]
2015 Nov. 20.69 UT: m1=12.4, Dia.=1.1′, DC=5; 40.0-cm L f/4.5 (144x); Seiichi Yoshida (Gunma, Japan)
2015 Nov. 16.90 UT: m1=13.0, Dia.=1.0′, DC=6; 30.5-cm L f/4.9 (120x); J. P. Navarro Pina (El Ardal Bullas 550 mts, Murcia, Spain)
2015 Nov. 14.91 UT: m1=11.6, Dia.=2′, DC=2, no cola; 20-cm SCT (80x); Carlos Labordena (Castellón, España)
2015 Nov. 11.90 UT: m1=13.7, Dia.=0.5′, DC=5; 50.8-cm L (189x); Sandor Szabo (Sopron, Hungary)
2015 Nov. 08.89 UT: m1=11.9, Dia.=1′, DC=1; 30.5-cm L F/4.9 (120x); J.P. Navarro Pina (El Palmar, Murcia, Spain)
2015 Nov. 07.90 UT: m1=11.2, Dia.=2.2′, DC=2/; 20-cm SCT (100x); Juan José González (Alto del Cellerón – Camposagrado, alt. 1190 m, León, España) [Más brillante que lo previsto. Débil coma externa. Cielo muy claro de montaña]
2015 Nov. 03.71 UT: m1=[13.4, negative; 20-cm L (222.2x); Artyom Novichonok (Konchezero station, Russia)
2015 Oct. 15.10 UT: m1=12.8, Dia.=0.6′, DC=4; 20-cm SCT (133x); Juan José González (Alto del Castro, alt. 1720 m, León, España) [Estrellas de comparación tomadas de la fotometría APASS cercana al cometa]
2015 Sep. 28.46 UT: m1=13.4: CCD, Dia.=&0.8′, Tail=&1.9′ in PA: 243 deg.; [T20] 0.1-m f/5.0 astrograph + CCD; A. Novichonok & T. Prystavski (iTelescope observatory, H06 remotely from Mayhill, U.S.A.) [interference by Moon: Moon phase 1.00, altitude 28 deg.]
2015 Sep. 13.43 UT: m1=14.2 CCD, Dia.=0.8′, Tail=&1.7′ in PA: 223 deg.; [T20] 0.1-m f/5.0 astrograph + CCD; A. Novichonok & T. Prystavski (iTelescope observatory, H06 remotely from Mayhill, U.S.A.)
2015 Sep. 06.93 UT: m1=14.4, Dia.=0.6′, DC=3; 60.3-cm L (305x); Sandor Szabo (Sopron, Hungary)
2015 Aug. 16.88 UT: m1=14.9 CCD; 0.07-m f/6 refractor + CCD; A. Novichonok, K. Nezgovorov & T. Prystavski (Petrozavodsk State University Observatory, C30 Sheltozero Stn., Russia)
2015 Aug. 15.01 UT: m1=15.3, Dia.=0.25′, DC=2; 60.3-cm L (305x); Sandor Szabo (Sopron, Hungary) [Moving was checked]
2015 Apr. 09.11 UT: m1=15.6 CCD; [T20] 0.1-m f/5.0 astrograph + CCD; A. Novichonok & T. Prystavski (iTelescope observatory, H06 remotely from Mayhill, U.S.A.)
2015 Mar. 28.12 UT: m1=15.9 CCD, Dia.=0.41′; [T20] 0.1-m f/5.0 astrograph + CCD; A. Novichonok & T. Prystavski (iTelescope observatory, H06 remotely from Mayhill, U.S.A.)
2015 Mar. 23.77 UT: m1=16.5 CCD + R filter, Dia.=16″, DC 5, Tail=20″ in PA: 125 deg.; 70-cm f/4 L + CCD; Alexander Baransky (Kyiv comet station)
2015 Mar. 18.81 UT: m1=[15.3 NEGATIVE; 50.8 cm L (307x); Sandor Szabo (Sopron, Hungary)
2015 Jan. 10.79 UT: m1=16.7: CCD, Dia.=&0.4′; [T16] 0.15-m f/7.3 refractor + CCD; A. Novichonok & T.Prystavski (AstroCamp Observatory, I89, remotely from Nerpio, Spain)

C/2014 S2 (PANSTARRS) ( observaciones)
2015 Dec. 31.71 UT: m1=9.0, Dia.=4′, DC=5/; 15.2-cm R f/5 (38x); Maik Meyer (Limburg, Germany)
2015 Dec. 30.89 UT: m1=9.7, Dia.=3′, DC=3; 30,5-cm F/4,9 (93x); J. P. Navarro Pina (Sierra del Carrascalejo 590 mts., Murcia, Spain)
2015 Dec. 30.81 UT: m1=8.9, Dia.=2.5′, DC=7, Tail= 0.05 deg. PA: 350 deg.; 32-cm L f/5 (96x); Uwe Pilz (Leipzig, Germany)
2015 Dec. 30.81 UT: m1=9.2, Dia.=3.8′, DC=4; 20×80 B; Marek Biely (Brno, Czech Republic) [Looks very similar to C/2013 X1]
2015 Dec. 30.73 UT: m1=9.5, Dia.=4′, DC=3; 25×100 B; Martin Lehky (Czech Republic)
2015 Dec. 30.24 UT: m1=9.0, Dia.=4′, DC=5; 20-cm L (42x); Alex Scholten (Eerbeek, Netherlands) (moonlight)
2015 Dec. 29.81 UT: m1=9.6, Dia.=3′, DC=3; 20.0-cm SCT (50x); Carlos Labordena (Castellón, España)
2015 Dec. 29.79 UT: m1=8.8, Dia.=4′, DC=5; 11.4-cm L f/8 (45x); Neil Norman (Ipswich, England)
2015 Dec. 29.73 UT: m1=9.0 DSLR, Dia.=3′; canon 1100d+300mm lens; Giuseppe Pappa (Mascalucia, Sicily, Italy)
2015 Dec. 28.22 UT: m1=8.8, Dia.=4′, DC=1; 20-cm L (42x); Alex Scholten (Eerbeek, Netherlands) (moonlight)
2015 Dec. 27.70 UT: m1=9.1, Dia.=4.5′, DC=5; 15.2-cm R f/5 (38x); Maik Meyer (Limburg, Germany)
2015 Dec. 26.71 UT: m1=9.3, Dia.=4′, DC=d5/; 15.2-cm R f/5 (38x); Maik Meyer (Limburg, Germany) [disk-like center surrounded by faint outer halo]
2015 Dec. 21.72 UT: m1=9.6, Dia.=1.6′, DC=3; 10.5-cm R f/6 (43x); Uwe Pilz (Leipzig, Germany)
2015 Dec. 21.53 UT: m1=8.4, Dia.=5, DC=4; 10×50 B; Carl Hergenrother (Tucson, AZ, USA)
2015 Dec. 21.23 UT: m1=8.4, Dia.=6′, DC=5; 10×50 B; Juan José González (Alto del Castro – Aralla, alt. 1720 m, León, España)
2015 Dec. 20.22 UT: m1=9.5, Dia.=2.7′, DC=6; 25-cm N (38x); Valentín Díaz (Barranc del Leon, Alicante, España)
2015 Dec. 16.792 UT: m1=8.6, Dia.=4′, DC=4; 11.4-cm L f/8 (45x); Neil Norman (Ipswich, England)
2015 Dec. 13.83 UT: m1=9.0, Dia.=4′, DC=5; 20-cm N (52x); Valentín Díaz (La Romaneta, Alicante, España)
2015 Dec. 13.80 UT: m1=9.4, Dia.=4′, DC=4, Tail= 15 arcmin.; 15.0-cm SCT (30x); Carlos Labordena (Castellón, España).
2015 Dec. 13.41 UT: m1=8.6, Dia.=5′, DC=4; 20×80 B; Man-To Hui (Joshua Tree National Park, CA, USA)
2015 Dec. 11.78 UT: m1=8.3, Dia.=6′, DC=4; 10×50 B; Juan José González (Los Veneros – Sierra del Aramo, alt. 1340 m, Asturias, España) [En 25×100 B: m1=8.5; Cola: 0.3º en ap 20º]
2015 Dec. 11.75 UT: m1=8.7, Dia.=3′, DC=3; 11.4-cm L f/8 (45x); Neil Norman (Ipswich, England) [Coma elongated in PA 66 deg.]
2015 Dec. 09.82 UT: m1=9.1, Dia.=3′, DC=5; 20-cm L (42x); Alex Scholten (Eerbeek, Netherlands) (comet close to star m=7.4)
2015 Dec. 09.797 UT: m1=8.6, Dia.=3′, DC=3; 11.4-cm f/8 (45x); Neil Norman (Ipswich, England) [Observed comet at its exact q date and time, a first for me. Coma elongated in PA: 66 deg.]
2015 Dec. 09.208 UT: m1=6.4, Dia.=8′, DC=5, Tail= 0.2′  PA: 150 deg (Dust), Tail= 0.2′ PA: 300 deg. (Ion); 11.4-cm L f/8 (45x); 11.4-cm f/8 (45x); Neil Norman (Ipswich, England)
2015 Dec. 08.88 UT: m1=9.3, Dia.=4′, DC=4, Tail= 15 arcmin.; 20.0-cm SCT (50x); Carlos Labordena (Castellón, España)
2015 Dec. 08.24 UT: m1=8.7, Dia.=8′, DC=1; 15×80 B; Alex Scholten (Eerbeek, Netherlands)
2015 Dec. 08.24 UT: m1=9.1, Dia.=4′, DC=6; 20-cm L (42x); Alex Scholten (Eerbeek, Netherlands)
2015 Dec. 07.80 UT: m1=9.0, Dia.=4′, DC=4/; 15.2-cm R f/5 (38x); Maik Meyer (Limburg, Germany)
2015 Dec. 07.792 UT: m1=8.7, Dia.=4′, DC=4; 11.4-cm L f/8 (45x); Neil Norman (Ipswich, England) [Coma elongated in PA: 66 deg.]
2015 Dec. 07.69 UT: m1=9.3, Dia.=2.5′, DC=4/; 25.5-cm L (70.6x); Danil Sidorko (Korenovsk, Russia)
2015 Dec. 07.19 UT: m1=9.2 DSLR, Dia.=4′; digital reflex+0.3m lens; Giuseppe Pappa (Sicily, Italy)
2015 Dec. 06.72 UT: m1=9.0 DSLR, Dia.=4′; digital reflex+0.3m lens; Giuseppe Pappa (Sicily, Italy)
2015 Dec. 06.11 UT: m1=8.3, Dia.=6′, DC=4; 10×50 B; Juan José González (Puerto de la Cubilla, alt. 1690 m, Asturias, España) [En 25×100 B: m1=8.6]
2015 Dec. 06.07 UT: m1=9.0, Dia.=5, DC=6; 30×125 B; Carl Hergenrother (Tucson, AZ, USA)
2015 Dec. 05.89 UT: m1=9.0, Dia.=3′, DC=6; 20-cm L (42x); Alex Scholten (Eerbeek, Netherlands)
2015 Dec. 05.88 UT: m1=8.6, Dia.=7′, DC=1; 15x80B; Alex Scholten (Eerbeek, Netherlands)
2015 Dec. 04.81 UT: m1=9.1, Dia.=3′, DC=4/; 15.2-cm R f/5 (38x); Maik Meyer (Limburg, Germany)
2015 Dec. 04.78 UT: m1=8.6, Dia.=7′, DC=1; 15×80 B; Alex Scholten (Bussloo, Netherlands)
2015 Dec. 04.74 UT: m1=9.6, Dia.=4.0′, DC=6, Tail= 0.05 deg. PA: 24 deg.; 32.0-cm L f/5 (96x); Uwe Pilz (Leipzig, Germany)
2015 Dec. 04.69 UT: m1=9.4, Dia.=2.8′, DC=4/; 25.5-cm L (46.2x); Danil Sidorko (Korenovsk, Russia)
2015 Dec. 02.69 UT: m1=9.3, Dia.=3.5′, DC=4; 25.5-cm L (46.2x); Danil Sidorko (Korenovsk, Russia)
2015 Nov. 30.84 UT: m1=9.5, Dia.=5′, DC=5, Tail= 0.35º en PA: 25º; 20-cm SCT (77x); Juan José González (Alto del Trichero – Soto y Amío, alt. 1190 m, León, España) [Condensación central cuasi-estelar, m2=11.5: (Tycho-2). Estrella de magnitud 10.1 (Tycho-2) en la coma]
2015 Nov. 27.75 UT: m1=9.9, Dia.=1.3′, DC=4; 10.5-cm R f/6 (43x); Uwe Pilz (Leipzig, Germany)
2015 Nov. 24.22 UT: m1=9.0, Dia.=5′, DC=4, no cola; 8-cm B (11x); Carlos Labordena (Castellón, España)
2015 Nov. 23.21 UT: m1=8.5, Dia.=6′, DC=4; 10×50 B; Juan José González (Peña Nebina – Ferreruela de Tábara, alt. 970 m, Zamora, España ) [ En 20 cm SCT (77x): m1=9.4, Dia.=4′, DC=5, Cola: 0.15º en AP 30º; condensación central cuasi-estelar, m2=11.5: ( Tycho-2 )]
2015 Nov. 22.44 UT: m1=9.4, Dia.=2.5, DC=6; 30×125 B; Carl Hergenrother (Tucson, AZ, USA)
2015 Nov. 21.05 UT: m1=9.6, Dia.=2.3′, DC=3; 12.7-cm MN (61x); Valentín Díaz (Pantano de Elche, Alicante, España)
2015 Nov. 20.93 UT: m1=10.5, Dia.=2.5′, DC=3; 30.5-cm L f/4.9 (93x); J. P. Navarro Pina (El Ardal 550 mts Bullas, Murcia, Spain) [moonlight 58%]
2015 Nov. 20.68 UT: m1=8.8, Dia.=4.5′, DC=6/; 40.0-cm L f/4.5 (36x); Seiichi Yoshida (Gunma, Japan)
2015 Nov. 18.81 UT: m1=9,0, Dia.=6.0′, DC=S6/, Tail=8-10′ PA: 30deg.; 15×70 B & 12-cm R (67x); Gábor Sánta (Kisújszállás, Hungary) [m2=11.9, NELM at the comet=6.5, 35 deg. above horizon. Very-very clear night, best of the year]
2015 Nov. 18.792 UT: m1=9.0, Dia.=3′, DC=4; 11.4-cm L f/8 (45x); Neil Norman (Ipswich, England)
2015 Nov. 18.73 UT: m1=9.4, Dia.=3′, DC=s4/; 15.2-cm R f/5 (38x); Maik Meyer (Limburg, Germany)
2015 Nov. 16.86 UT: m1=10.1, Dia.=2′, DC=6, Tail= 5′; 30.5-cm L f/4.9 (93x); J. P. Navarro Pina (El Ardal Bullas 550 mts, Murcia, Spain)
2015 Nov. 15.84 UT: m1=9.4, Dia.=3′, DC=s5; 15.2-cm R f/5 (38x); Maik Meyer (Limburg, Germany)
2015 Nov. 15.79 UT: m1=8.5, Dia.=9′, DC=4; 10×50 B; Juan José González (Collado de Santa Ana – Macizo Central de Picos de Europa, alt. 2503 m, Asturias, España) [Cielo muy claro de alta montaña]
2015 Nov. 15.74 UT: m1=9.5 DSLR, Dia.=4′; Digital reflex+0.3m lens; Giuseppe Pappa (Sicily, Italy)
2015 Nov. 15.72 UT: m1=9.8 DSLR, Dia.=4′, Tail= 5′; Digital reflex+0.3m lens; Giuseppe Pappa (Sicily, Italy)
2015 Nov. 14.81 UT: m1=9.2, Dia.=5′, DC=4, no cola; 8-cm B (11x); Carlos Labordena (Castellón, España)
2015 Nov. 14.80 UT: m1=9.5, Dia.=5′, DC=5, Cola= 0.15′; 20-cm SCT (50x); Carlos Labordena (Castellón, España)
2015 Nov. 13.78 UT: m1=9.3, Dia.=5′, DC=2; 10×50 B; Alex Scholten (Bussloo, Netherlands)
2015 Nov. 13.77 UT: m1=9.3, Dia.=4′, DC=s5; 15.2-cm R f/5 (38x); Maik Meyer (Limburg, Germany)
2015 Nov. 12.18 UT: m1=9.5, Dia.=2′, DC=6; 30×125 B; Carl Hergenrother (Tucson, AZ, USA)
2015 Nov. 11.86 UT: m1=10.2, Dia.=1.1′, DC=6, Tail is 7’ long to PA: 50 deg.; 50.8-cm L (123x); Sandor Szabo (Sopron, Hungary)
2015 Nov. 11.74 UT: m1=9.4 DSLR, Dia.=3′, Tail= 2′; Digital reflex+0.3m lens; Giuseppe Pappa (Sicily, Italy)
2015 Nov. 11.72 UT: m1=9.3; dia.=3.5′, DC=s4/; 15.2-cm R f/5 (38x); Maik Meyer (Limburg, Germany)
2015 Nov. 10.79 UT: m1=8.6, Dia.=9′, DC=4; 10×50 B; Juan José González (Horcados Rojos – Macizo Central de Picos de Europa, alt. 2344 m, Asturias, España) [Cielo muy claro de alta montaña]
2015 Nov. 10.59 UT: m1=11.3, Dia.=1.9’, DC=4; 25-cm L f:5 (39x); Chris Wyatt (Walcha, NSW, Australia) [Outer coma diffuse and semi-opaque with opaque centre, moderately condensed, pale aqua-blue in colour. Does not enhance in Swan Band filter. No tail although there appears to be an elongation to the NE approximately. At x83 the central condensation appears to be nearing DC of 6. Low altitude = 13.6°]
2015 Nov. 10.23 UT: m1=9.3, Dia.=2.5′, DC=6; 30×125 B; Carl Hergenrother (Tucson, AZ, USA)
2015 Nov. 09.79 UT: m1=10.0, Dia.=2.5′, DC=6; 30.5-cm L F/4.9 (93x); J. P. Navarro Pina (El Ardal 550 mts., Bullas, Murcia, Spain)
2015 Nov. 08.87 UT: m1=10.1, Dia.=3′, DC=2, no tail; 30.5-cm L F/4.9 (93x); J. P. Navarro Pina (El Palmar, Murcia, Spain)
2015 Nov. 07.83 UT: m1=8.8, Dia.=7′, DC=5; 10×50 B; Juan José González (Alto del Cellerón – Camposagrado, alt. 1190 m, León, España) [En 25x100B: m1=9.1. En 20 cm SCT (77x): m1=9.5, Dia.=4′, DC=4/, Cola: 0.15º en AP 50º; condensación central cuasi-estelar, m2=12.0: (con fotometría APASS cercana al cometa)]
2015 Nov. 07.788 UT: m1=9.2, Dia.=3′, DC=4; 11.4-cm L f/8 (45x); Neil Norman (Ipswich, England)
2015 Nov. 06.90 UT: m1=10.0, Dia.=2.5′, DC=5; 25-cm L (38x); Valentín Díaz (La Romaneta, Alicante, España)
2015 Nov. 06.81 UT: m1=9.8, Dia.=3′, DC=6, Tail= 8′; 30,5-cm R f/4.9 (93x); J. P. Navarro Pina (Bullas, Murcia, Spain)
2015 Nov. 05.86 UT: m1=9.5:, Dia.=2.3′, DC=s6, Tail: 2.5 arcmin; 20-cm L (31.3x); Artyom Novichonok (Chalna fields, Russia)
2015 Nov. 05.74 UT: m1=9.6, Dia.=2.2′, DC=3, Tail= 0.05 deg. PA: 51 deg.; 10.5-cm R f/6 (43x); Uwe Pilz (Leipzig, Germany)
2015 Nov. 03.88 UT: m1=9.8, Dia.=4′, DC=3, no cola; 8-cm B (11x); Carlos Labordena (Castellón, España)
2015 Nov. 03.87 UT: m1=10.0, Dia.=4′, DC=3, no cola; 20-cm SCT (50x); Carlos Labordena (Castellón, España)
2015 Nov. 03.78 UT: m1=9.7, Dia.=2.1′, DC=s6, Tail: 2.3 arcmin; 20-cm L (66.7x); Artyom Novichonok (Konchezero station, Russia)
2015 Nov. 02.83 UT: m1=9.9, Dia.=4′, DC=6; 30,5-cm L f/4.9 (93x); J. P. Navarro Pina (El Palmar, Murcia, Spain)
2015 Nov. 02.76 UT: m1=9.5, Dia.=1.2′, DC=6; 32.0-cm L f/5 (96x); Uwe Pilz (Leipzig, Germany)
2015 Nov. 02.73 UT: m1=9.5, Dia.=4′, DC=s4; 15.2-cm R f/5 (38x); Maik Meyer(Limburg, Germany)
2015 Nov. 02.03 UT: m1=9.2 DSLR, Dia.=6.3′; 55-mm lens Nikon D5200; Artyom Novichonok (Petrozavodsk, Russia)
2015 Nov. 01.92 UT: m1=9.2, Dia.=6′, DC=3; 25×100 B; Juan José González (Collada del Fresno – Sierra del Aramo, alt. 1221 m, Asturias, España) [Nov. 1.84 UT: En 20 cm SCT (77x): m1=9.7, Dia.=5′, DC=3/. Condensación central cuasi-estelar, m2=12.0: ( con fotometría APASS cercana al cometa) (Pandorado, alt. 1190 m, León]
2015 Nov. 01.76 UT: m1=9.7, Dia.=3′, DC=s4; 15.2-cm R f/5 (38x); Maik Meyer(Limburg, Germany)
2015 Nov. 01.75 UT: m1=9,7, Dia.=4.0′, DC=s5/, Tail=3-4′ PA: 40 deg; 12-cm R (48x); Gábor Sánta (Kisújszállás, Hungary) [m2=12.7, NELM at the comet= 5.5-6, 48 degs. above horizon]
2015 Oct. 30.90 UT: m1=9.8 DSLR, Dia.=3.5′; 55-mm lens Nikon D5200; Artyom Novichonok (Petrozavodsk, Russia)
2015 Oct. 30.81 UT: m1=10.5, Dia.=3′, DC=3; 30,5-cm L f/4.9 (93x); J. P. Navarro Pina (El Palmar, Murcia, Spain)
2015 Oct. 29.74 UT: m1=9.7, Dia.=3′, DC=s5; 15.2-cm R f/5 (38x); Maik Meyer (Limburg, Germany)
2015 Oct. 28.82 UT: m1=9.8 DSLR, Dia.=3.8′; 55-mm lens Nikon D5200; Artyom Novichonok (Petrozavodsk, Russia)
2015 Oct. 24.09 UT: m1=9.8, Dia.=4.2′, DC=5; 20×80 B; Marek Biely (Brno, Czech Republic) [Hills were covered by the fog but it has not influenced the observation]
2015 Oct. 22.03 UT: m1=9.3, Dia.=6′, DC=4; 25×100 B; Juan José González (Llano de las Ovejas – Sierra del Teleno, alt. 2011 m, León, España) [Cielo muy claro de montaña]
2015 Oct. 19.91 UT: m1=9.8 DSLR, Dia.=3′, DC=4; Digital reflex+0.3m lens; Giuseppe Pappa (Sicily, Italy)
2015 Oct. 19.72 UT: m1=9.8 DSLR, Dia.=3′, DC=6; Digital reflex+0.3m lens; Giuseppe Pappa (Sicily, Italy)
2015 Oct. 18.88 UT: m1=10.0 DSLR, Dia.=3′, DC=5; Digital reflex+0.3m lens; Giuseppe Pappa (Sicily, Italy)
2015 Oct. 17.79 UT: m1=9.5, Dia.=4′, DC=5; 25.5-cm L (46.2x); Danil Sidorko (Korenovsk, Russia)
2015 Oct. 17.75 UT: m1=10.1, Dia.=3.3′, DC=4; 7.6-cm f/4 L (38x); Marek Biely (Brno, Czech Republic) [Slight interference of low clouds]
2015 Oct. 15.09 UT: m1=9.6, Dia.=5′, DC=5; 25×100 B; Juan José González (Alto del Castro, alt. 1720 m, León, España) [En 20 cm SCT (77x): m1=9.9, Dia.=4′, DC=4/. Condensación central cuasi-estelar, m2=12.5: a 133x, con fotometría APASS cercana al cometa]
2015 Oct. 12.83 UT: m1=10.1, Dia.=3′, DC=s4; 15.2-cm R f/5 (38x); Maik Meyer (Limburg, Germany)
2015 Oct. 11.87 UT: m1=9.7, Dia.=4′, DC=4; 20-cm L (42x); Alex Scholten (Eerbeek, Netherlands)
2015 Oct. 11.86 UT: m1=10.0 DSLR, Dia.=3′, DC=3; Digital Reflex+0,3m lens; Giuseppe Pappa (Sicily, Italy)
2015 Oct. 11.81 UT: m1=9.9 DSLR, Dia.=4′, DC=4; Digital Reflex+0,3m lens; Giuseppe Pappa (Sicily, Italy)
2015 Oct. 11.80 UT: m1=10.2, Dia.=2′, DC=3; 30.5-cm L F/4.9 (93x); J. P. Navarro Pina (El Palmar, Murcia, Spain)
2015 Oct. 11.76 UT: m1=10.2, Dia.=3′, DC=s4; 15.2-cm R f/5 (38x); Maik Meyer (Limburg, Germany)
2015 Oct. 11.58 UT: m1=9.7, Dia.=5.0′, DC=7; 40.0-cm L f/4.5 (36x); Seiichi Yoshida (Gunma, Japan)
2015 Oct. 10.81 UT: m1=11.2, Dia.=0.8′, DC=6, Tail= 0.02 deg. PA: 112 deg.; 32-cm L f/5 (96x); Uwe Pilz (Leipzig, Germany)
2015 Oct. 09.90 UT: m1=10.2, Dia.=2′, DC=3; 7.5-cm R (120x); Valentín Díaz (Aspe, Alicante, España)
2015 Oct. 09.889 UT: m1=10.0, Dia.=2′, DC=4; 11.4-cm L f/8 (135x); Neil Norman (Ipswich, England)
2015 Oct. 09.82 UT: m1=10.2, Dia.=3′, DC=4, no cola; 20-cm B (50x); Carlos Labordena (Castellón, España)
2015 Oct. 08.895 UT: m1=10.0, Dia.=2′, DC=4; 11.4-cm L f/8 (135x); Neil Norman (Ipswich, England)
2015 Oct. 06.90 UT: m1=10.1, Dia.=3′, DC=4; 20-cm L (42x); Alex Scholten (Eerbeek, Netherlands)
2015 Oct. 07.93 TU: m1=10,1, Dia.=3′, DC=3; 11.4-cm L f/8 (135x); Neil Norman (Ipswich, England)
2015 Oct. 06.74 UT: m1=10.2 DSLR, Dia.=3′, DC=3; Digital Reflex+0,3m lens; Giuseppe Pappa (Sicily, Italy)
2015 Oct. 05.83 UT: m1=10.3 DSLR, Dia.=4′, DC=4; Digital Reflex+0,3m lens; Giuseppe Pappa (Sicily, Italy)
2015 Oct. 04.92 UT: m1=10.2 DSLR, Dia.=4′, DC=3; Digital Reflex+0,3m lens; Giuseppe Pappa (Sicily, Italy)
2015 Oct. 04.87 UT: m1=10.2, Dia.=4′, DC=6; 20-cm L (42x); Alex Scholten (Eerbeek, Netherlands)
2015 Oct. 04.826 UT: m1=10.5, Dia.=2′, DC=4; 11.4-cm L f/8 (135x); Neil Norman (Ipswich, England)
2015 Oct. 04.77 UT: m1=10.1, Dia.=4′, DC=s4; 15.2-cm R f/5 (38x); Maik Meyer (Limburg, Germany)
2015 Oct. 04.72 UT: m1=10.7, Dia.=1.8′, DC=4/; 25.5-cm L (120x); Danil Sidorko (Korenovsk, Russia)
2015 Oct. 03.93 UT: m1=10.4 DSLR, Dia.=4′, DC=3; Digital Reflex+0,3m lens; Giuseppe Pappa (Sicily, Italy)
2015 Oct. 03.81 UT: m1=10.2, Dia.=3′, DC=4; 25×100 B; Mieczyslaw Leszek Paradowski (Lublin, Poland)
2015 Oct. 03.77 UT: m1=10.0, Dia.=3′, DC=s4; 15.2-cm R f/5 (38x); Maik Meyer (Limburg, Germany)
2015 Oct. 03.73 UT: m1=10.2, Dia.=3.2′, DC=4; 20-cm L (66.7x); Artyom Novichonok (Petrozavodsk, Russia)
2015 Oct. 02.77 UT: m1=10.4, Dia.=2.5′, DC=4; 15.2-cm R f/5 (38x); Maik Meyer (Limburg, Germany)
2015 Oct. 01.85 UT: m1=9.9, Dia.=4′, DC=4/; 25×100 B; Juan José González (Alto del Castro, alt. 1720 m, León, España) [En 20 cm SCT (77x): m1=10.1, Dia.=5′, DC=4. Condensación central cuasi-estelar, m2=12.7: a 133x con fotometría APASS cercana al cometa]
2015 Oct. 01.819 UT: m1=10.4, Dia.=3′, DC=4; 11.4-cm L f/8 (135x); Neil Norman (Ipswich, England)
2015 Oct. 01.80 UT: m1=10.2, Dia.=3′, DC=6; 20-cm L (42x); Alex Scholten (Eerbeek, Netherlands)
2015 Oct. 01.78 UT: m1=10.3, Dia.=2.5′, DC=3/; 15.2-cm R f/5 (38x); Maik Meyer (Limburg, Germany) [slightly enhanced using a Lumicon Swan Band filter]
2015 Sep. 28.47 UT: m1=10.5: CCD, Dia.=&2.4′, Tail=&2.5′ in PA: 229 deg.; [T20] 0.1-m f/5.0 astrograph + CCD; A. Novichonok & T. Prystavski (iTelescope observatory, H06 remotely from Mayhill, U.S.A.) [interference by Moon: Moon phase 1.00, altitude 25 deg.]
2015 Sep. 28.07 UT: m1=10.7 (Tri-G), Dia.=2.3′; Nikon D5200 (135-mm lens); Artyom Novichonok (Ladva, Russia)
2015 Sep. 24.14 UT: m1=10.4, Dia.=3′, DC=3; 15.2-cm R f/5 (38x); Maik Meyer (Limburg, Germany)
2015 Sep. 23.01 UU: m1=10.8, Dia.=2′, DC=4; 11.4-cm L f/8 (135x); Neil Norman (Ipswich, England)
2015 Sep. 22.86 UT: m1=11.3, Dia.=1.3′, DC=4; 20-cm L (153.8x; Artyom Novichonok (Petrozavodsk, Russia)
2015 Sep. 22.84 UT: m1=11.0, Dia.=1.4′, DC=1; 30.5-cm L f/4,9 (93x); J. P. Navarro Pina (El Palmar, Murcia, Spain)
2015 Sep. 21.88 UT: m1=10.4, Dia.=2.1′, DC=5; 7.6-cm, f/4 L (38x); Marek Biely (Brno, Czech Republic) [Even a bit brighter. Slight interference of low clouds]
2015 Sep. 21.74 UT: m1=10.8, Dia.=2.0′, DC=S6; 40.0-cm L f/4.5 (75x); Seiichi Yoshida (Gunma, Japan)
2015 Sep. 20.89 UT: m1=10.7, Dia.=1.8′, DC=4; 7.6-cm, f/4 L (38x); Marek Biely (Brno, Czech Republic) [It was not very difficult to see it. Visible also with averted vision at x15 as extremely faint and diffuse spot]
2015 Sep. 20.83 UT: m1=11.4, Dia.=1.5′, DC=5; 20-cm L (77x); Valentín Díaz (La Romaneta, Alicante, España)
2015 Sep. 20.43 UT: m1=11.1, Dia.=1.4′, DC=4; 40.0-cm L f/4.5 (144x); Seiichi Yoshida (Gunma, Japan)
2015 Sep. 19.899 UT: m1=10.8, Dia.=2′, DC=3; 11.4-cm L f/8 (135x); Neil Norman (Ipswich, England)
2015 Sep. 18.91 UT: m1=10.6, Dia.=3′, DC=2, no cola; 20-cm B (50x); Carlos Labordena (Castellón, España)
2015 Sep. 17.99 UT: m1=10.9, Dia.=1.3′, DC=6, Tail= 0.05 deg. PA: 241 deg.; 32.0-cm L f/5 (96x); Uwe Pilz (Leipzig, Germany)
2015 Sep. 17.88 UT: m1=10.9: DSLR, Dia.=&1.2′, Tail=&2.5′ in PA: 232 deg.; 0.20-m f/4 reflector + DSLR camera; Taras Prystavski (Lviv, Ukraine) [[Red light pollution zone, Bortle sky class=6]
2015 Sep. 16.85 UT: m1=10.5 DSLR, Dia.=3′, DC=4; Digital Reflex+0,3m lens; Giuseppe Pappa (Sicily, Italy)
2015 Sep. 15.47 UT: m1=11.6: CCD, Dia.=1.5′, Tail=3.2′ in PA: 239 deg.; [T20] 0.1-m f/5.0 astrograph + CCD; A. Novichonok & T. Prystavski (iTelescope observatory, H06 remotely from Mayhill, U.S.A.)
2015 Sep. 15.13 UT: m1=10.6, Dia.=3′, DC=3/; 15.2-cm R f/5 (38x); Maik Meyer(Limburg, Germany) [Easy object, surprisingly bright and large]
2015 Sep. 13.896 UT: m1=10.4, Dia.=2′, DC=3; 11.4-cm L f/8 (135x); Neil Norman (Ipswich, England)
2015 Sep. 13.81 UT: m1=11.3, Dia.=&1.2′, DC=5; 20-cm L (80x); Artyom Novichonok (Lososinnoe, Russia)
2015 Sep. 13.44 UT: m1=11.6: CCD, Dia.=&1.5′, Tail=&3.0′ in PA: 237 deg.; [T20] 0.1-m f/5.0 astrograph + CCD; A. Novichonok & T. Prystavski (iTelescope observatory, H06 remotely from Mayhill, U.S.A.)
2015 Sep. 09.90  UT: m1=10.6, Dia.=4′, DC=3; 11.4-cm L f/8 (45x); Neil Norman (Ipswich, England) [Under perfect skies I attempted to view C/2014 S2 thinking it would be out of my reach, yet I located it quickly ,so quickly in fact I had to check several times that I was in the correct are. Rapid brightening is occurring with this object and with 3 months until perihelion, a close eye on it is advised]
2015 Sep. 07.97 UT: m1=10.8, Dia.=4′, DC=s2/; 20-cm SCT (77x); Juan José González (Alto del Castro, alt. 1720 m, León, España) [Desde cielos oscuros de montaña el cometa aparece significativamente más brillante que lo esperado, mostrando una amplia coma difusa con débil región externa. Condensación central cuasi-estelar, m2=13.2: a 133x (con fotometría APASS cercana al cometa ). Movimiento seguido durante 60 minutos. Estrellas de campo comprobadas en el DSS. Estrella de mag 12.6 (GSC) en la coma. Cielo muy claro de montaña]
2015 Sep. 06.94 UT: m1=12.1, Dia.=0.5’, DC=6; 60.3-cm L (187x); Sandor Szabo (Sopron, Hungary)
2015 Aug. 24.91 UT: m2=14.4 DSLR, Dia.=&0.7′, Tail=&0.9′ in PA: 257 deg.; 0.20-m f/4 reflector + DSLR camera; Taras Prystavski (Lviv, Ukraine) [Red light pollution zone, Bortle sky class=6]
2015 Aug. 19.89 UT: m1=13.2: CCD, Dia.=&0.7′, Tail=&1′ in PA: 256 deg.; 0.08-m f/7.5 refractor + CCD; A. Novichonok, T. Prystavski (Konchezero Stn., Republic of Karelia, Russia)
2015 Aug. 16.86 UT: m1=13.4: CCD, Dia.=&0.9′, Tail=&1′ in PA: 248 deg.; 0.07-m f/6 refractor + CCD; A. Novichonok, K. Nezgovorov & T. Prystavski (Petrozavodsk State University Observatory, C30 Sheltozero Stn., Russia)
2015 Aug. 13.95 UT: m1=13.8, Dia.=0.5′, DC=4; 60.3-cm L (244x); Sandor Szabo (Sopron, Hungary)

C/2014 R1 (Borisov) ( observaciones)
2015 Apr. 20.03 CCD, m1=15.4: CCD Dia.=&0.5′; 0.3-m f/1.5 astrograph + CCD; G. Borisov & T. Prystavski (MARGO – MPC L51 Crimea-Nauchnij)
2015 Mar. 24.06 UT: m1=14.3: CCD Dia.=&0.6′ Tail=&1.1′ in PA 270 deg; 0.3-m f/1.5 astrograph + CCD; G. Borisov & T. Prystavski (MARGO – MPC L51 Crimea-Nauchnij)
2015 Feb. 19.09 UT: m1=12.4 CCD Dia.=2.2′, Tail=7.5′ in PA 288 deg; 0.3-m f/1.5 astrograph + CCD; G. Borisov & T. Prystavski (MARGO – MPC L51, Crimea-Nauchnij)
2015 Feb. 18.08 UT: m1=13.5 CCD + R filter, Dia.=1′, DC 5, Tail: > 11′ in PA: 284 deg.; 70-cm f/4 L + CCD; Alexander Baransky (Kyiv comet station MPC 585, Ukraine)
2015 Feb. 17.13 UT: m1=12.7 CCD + R filter, Dia.=1′ 20″, DC 5, Tail: > 8’30” in PA: 283 deg.; 70-cm f/4 L + CCD; Alexander Baransky (Kyiv comet station MPC 585, Ukraine)
2015 Feb. 16.17 UT: m1=[11.4, Dia.=1.6′; 7.6cm L f/4 (38x); Marek Biely (Brno, Czech Republic) [Fainter than 11.4 mag.]
2015 Feb. 15.48 UT: m1=12.1 CCD, Dia.=1.8′, Tail=&8.0′ in PA 286 deg; [T20] 0.1-m f/5.0 astrograph + CCD; A. Novichonok & T. Prystavski (iTelescope observatory, H06 remotely from Mayhill, U.S.A.)
2015 Jan. 24.71 UT: m1=12.8, Dia.=1.4’, DC=3/; 25cm L f:5 (83x); Chris Wyatt (Walcha, NSW, Australia) [Coma small and diffuse with slight brightening to centre, no tail]
2015 Jan. 17.51 UT: m1=11.3: CCD, Dia.=&2.5′, Tail=&11.2′ in PA 292 deg; [T20] 0.1-m f/5.0 astrograph + CCD; A. Novichonok, T. Prystavski, N. Teymurov (iTelescope observatory, H06, remotely from Mayhill, U.S.A.)
2015 Jan. 11.50 UT: m1=11.6: CCD, Dia.=&2.6′, Tail=&15.0′ in PA 291 deg; [T20] 0.1-m f/5.0 astrograph + CCD; A. Novichonok, T. Prystavski, N. Teymurov (iTelescope observatory, H06, remotely from Mayhill, U.S.A.) [interference by Moon: Moon phase 0.68, altitude 56 deg.]
2015 Jan. 02.11 UT: m1=11.3: CCD, Dia.=&4.5′, Tail=&20′ in PA: 293 deg.; 0.3-m f/1.5 astrograph + CCD; G. Borisov & T. Prystavski (MARGO – MPC L51, Crimea-Nauchnij)

C/2014 Q3 (Borisov) ( observaciones)
2015 Feb. 23.05 UT: m1=17.2: CCD Dia.=&0.5′; 0.3-m f/1.5 astrograph + CCD; G. Borisov & T. Prystavski (MARGO – MPC L51, Crimea-Nauchnij)
2015 Jan. 14.11 UT: m1=15.4 CCD, Dia.=0.6′; 0.3-m f/1.5 astrograph + CCD; G. Borisov & T. Prystavski (MARGO – MPC L51, Crimea-Nauchnij)
2015 Jan. 10.72 UT: m1=[12.0, Dia.=1.3′, NEGATIVE; 7.6cm f/4 L (38x); Marek Biely (Brno, Czech Republic) [Not visible as I expected. Fainter than 12.0 mag. Slight interference of low clouds.]

C/2014 Q2 (Lovejoy) ( observaciones)
2015 Nov. 16.80 UT: m1=11.5, Dia.=1.5′, DC=1; 30,5-cm L f/4.9 (120x); J. P. Navarro Pina (El Ardal Bullas 550 mts , Murcia , Spain)
2015 Nov. 07.758 UT: m1=10.7, Dia.=2′, DC=2; 11.4-cm L f/8 (45x); Neil Norman (Ipswich, England)
2015 Nov. 03.66 UT: m1=[11.4, negative; 20-cm L (153.8x); Artyom Novichonok (Konchezero station, Russia)
2015 Nov. 02.76 UT: m1=10.6, Dia.=3.5′, DC=1; 32.0-cm L f/5 (96x); Uwe Pilz (Leipzig, Germany)
2015 Oct. 15.79 UT: m1=11.5: CCD, Dia.=&2.9′; [T16] 0.15-m f/7.3 refractor + CCD; A. Novichonok & T.Prystavski (AstroCamp Observatory, I89 (remotely from Nerpio, Spain))
2015 Oct. 10.78 UT: m1=10.7, Dia.=3.0′, DC=3; 32-cm L f/5 (96x); Uwe Pilz (Leipzig, Germany)
2015 Oct. 09.81 UT: m1=11.2, Dia.=3′, DC=2, no cola; 20-cm B (50x); Carlos Labordena (Castellón, España)
2015 Oct. 06.74 UT: m1=11.5 DSLR, Dia.=2′, DC=2; Digital Reflex+0,3m lens; Giuseppe Pappa (Sicily, Italy)
2015 Oct. 03.09 UT: m1=11.3: CCD, Dia.=&2.9′; [T20] 0.1-m f/5.0 astrograph + CCD; A. Novichonok & T. Prystavski (iTelescope observatory, H06 remotely from Mayhill, U.S.A.) [poor quality image: a lot of bad pixels and artefatcs visible]
2015 Oct. 01.86 UT: m1=10.7, Dia.=4′, DC=2/; 20-cm SCT (77x); Juan José González (Alto del Castro, alt. 1720 m, León, España) [Estrella de mag. 12.4 (APASS) en la coma]
2015 Sep. 22.85 UT: m1=11.6, Dia.=1.5′, DC=2; 30.5-cm L f/4,9 (93x); J. P. Navarro Pina (El Palmar, Murcia, Spain)
2015 Sep. 21.88 UT: m1=11.0:, Dia.=&2′, DC=2/, 7.6-cm, f/4 reflector (38x); Marek Biely (Brno, Czech Republic) [Slight interference of low clouds. Limit observation]
2015 Sep. 20.87 UT: m1=10.9:, Dia.=&2.5′, DC=3, 7.6-cm, f/4 reflector (38x); Marek Biely (Brno, Czech Republic) [Limit observation]
2015 Sep. 20.42 UT: m1=11.3, Dia.=1.6′, DC=3; 40.0-cm L f/4.5 (75x); Seiichi Yoshida (Gunma, Japan)
2015 Sep. 18.87 UT: m1=11.1, Dia.=3′, DC=3, no cola; 20-cm B (50x); Carlos Labordena (Castellón, España)
2015 Sep. 17.89 UT: m1=10.8: DSLR, Dia.=&2.0′; 0.20-m f/4 reflector + DSLR camera; Taras Prystavski (Lviv, Ukraine) [Red light pollution zone, Bortle sky class=6]
2015 Sep. 16.84 UT: m1=11.2 DSLR, Dia.=2′, DC=2; Digital Reflex+0,3m lens; Giuseppe Pappa (Sicily, Italy)
2015 Sep. 15.80 UT: m1=11.0:, Dia.=2′, DC=2; 15.2-cm R f/5 (63x); Maik Meyer(Limburg, Germany)
2015 Sep. 14.85 UT: m1=10.7: CCD, Dia.=5.4′, Tail=7.8′ in PA: 342 deg.; [T16] 0.15-m f/7.3 refractor + CCD; A. Novichonok & T.Prystavski (AstroCamp Observatory, I89 remotely from Nerpio, Spain)
2015 Sep. 14.82 UT: m1=10.9, Dia.=3′, DC=2; 15.2-cm R f/5 (63x); Maik Meyer(Limburg, Germany)
2015 Sep. 11.82 UT: m1=10.6, Dia.=2.5′, DC=2/; 15.2-cm R f/5 (63x); Maik Meyer (Limburg, Germany)
2015 Sep. 10.82 UT: m1=10.7, Dia.=2.5′, DC=2/; 15.2-cm R f/5 (63x); Maik Meyer (Limburg, Germany)
2015 Sep. 09.82 UT: m1=10.7, Dia.=3′, DC=2/; Maik Meyer (Limburg, Germany)
2015 Sep. 07.96 UT: m1=10.4, Dia.=4′, DC=3; 20-cm SCT (77x); Juan José González (Alto del Castro, alt. 1720 m, León, España)
2015 Sep. 06.85 UT: m1=10.6, Dia.=2.5′, DC=5; 60.3-cm L (76x); Sandor Szabo (Sopron, Hungary)
2015 Sep. 05.892 UT: m1=10.8, Dia.=3′, DC=2; 11.4cm L f/8 (45x); Neil Norman (Ipswich, England)
2015 Aug. 22.93 UT: m1=10.6, Dia.=~3′, DC=1; 20-cm L (42x); Alex Scholten (Eerbeek, Netherlands)
2015 Aug. 20.90 UT: m1=10.7 CCD, Dia.=4.2′; 15cm L f/4; Mieczyslaw L. Paradowski (Dąbrowa, Poland)
2015 Aug. 19.86 UT: m2=13.7 CCD, Dia.=&5.7′; 0.08-m f/7.5 refractor + CCD; A. Novichonok, T. Prystavski (Konchezero Stn., Republic of Karelia, Russia)
2015 Aug. 18.93 UT: m1=10.1, Dia.=4′, DC=3; 20-cm SCT (77x); Juan José González (Cueto Rosales, alt. 1420 m, León, España)
2015 Aug. 16.91 UT: m1=10.7: CCD, Dia.=&4.8′, Tail=&9′ in PA: 328 deg.; 0.07-m f/6 refractor + CCD; A. Novichonok, K. Nezgovorov & T. Prystavski (Petrozavodsk State University Observatory, C30 Sheltozero Stn., Russia)
2015 Aug. 15.89 UT: m1=10.0, Dia.=5′, DC=3, no cola; 20-cm B (50x); Carlos Labordena (Castellón, España)
2015 Aug. 14.89 UT: m1=10.0: CCD, Dia.=&5.9′, Tail=&6.5′ in PA: 332 deg.; 0.07-m f/6 refractor + CCD; A. Novichonok, K. Nezgovorov & T. Prystavski (Petrozavodsk State University Observatory, C30 Sheltozero Stn., Russia)
2015 Aug. 13.86 UT: m1=10.2:, Dia.=&4′, DC=2; 20×80 B (20x); Marek Biely (Brno, Czech Republic) [Limit observation]
2015 Aug. 12.88 UT: m1=10.0, Dia.=4.5′, DC=2; 15.2-cm R f/5 (38x); Maik Meyer (Limburg, Germany)
2015 Aug. 12.81 UT: m1=10.2, Dia.=4.5′, DC=3/; 25.5-cm L (46.2x); Danil Sidorko (Mezmay, Russia)
2015 Aug. 11.83 UT: m1=10.1, Dia.=4.5′, DC=3/; 25.5-cm L (46.2x); Danil Sidorko (Mezmay, Russia)
2015 Aug. 10.90 UT: m1=9.9, Dia.=5′, DC=2/; 20-cm SCT (77x); Juan José González (Peñausende, alt. 850 m, Zamora, España)
2015 Aug. 10.87 UT: m1=10.0:, Dia.=&4′, DC=1/, 20×80 B; Marek Biely (Brno, Czech Republic) [It is already very faint and diffuse. Limit observation.]
2015 Aug. 09.01 UT: m1=9.9, Dia.=4′, DC=3; 20-cm SCT (77x); Juan José González (Cueto Rosales, alt. 1420 m, León, España)
2015 Aug. 08.89 UT: m1=9.4, Dia.=4.5′, DC=2/; 25×100 B; Jakub Cerny (Senohraby, Czech Republic)
2015 Aug. 08.81 UT: m1=10.2, Dia.=8′, DC=3; 25.5-cm L (46.2x); Danil Sidorko (Mezmay, Russia)
2015 Aug. 07.84 UT: m1=10.1, Dia.=4′, DC=3; 15.2-cm R f/5 (38x); Maik Meyer (Limburg, Germany)
2015 Aug. 06.89 UT: m1=10.1, Dia.=3′, DC=3; 15.2-cm R f/5 (38x); Maik Meyer (Limburg, Germany)
2015 Aug. 06.88 UT: m1=10.5, Dia.=2.3′, DC=3, Tail= 2.5 arcmin. PA: 235 deg.; 32-cm L f/5 (96x); Uwe Pilz (Leipzig, Germany)
2015 July 26.04 UT: m1=9.8, Dia.=5, DC=3; 15.0-cm R f/5 (38x); Maik Meyer (Limburg, Germany)
2015 July 25.98 UT: m1=9.7, Dia.=5′ DC=3; 20-cm L (42x); Alex Scholten (Eerbeek, Netherlands)
2015 July 22.02 UT: m1=9.2, Dia.=4′, DC=2/; 25×100 B; Martin Lehky (Czech Republic)
2015 July 22.02 UT: m1=10.4, Dia.=3.2′, DC=5; 60.3 cm L (76x); Sandor Szabo (Sopron, Hungary)
2015 July 20.90 UT: m1=9.3, Dia.=3.5′, DC=3; 25×100 B; Martin Lehky (Czech Republic)
2015 July 19.95 UT: m1=9.5, Dia.=6′, DC=3; 20-cm L (42x); Alex Scholten (Eerbeek, Netherlands) (cirrusclouds)
2015 July 19.08 UT: m1=9.0, Dia.=5′, DC=2; 16×70 B; Valentín Díaz (Puebla de Don Fadrique, Granada, España)
2015 July 18.93 UT: m1=9.3, Dia.=5.5′, DC=2/; 15.0-cm R f/5 (38x); Maik Meyer (Limburg, Germany) [comet involved w/ 11 mag star]
2015 July 18.04 UT: m1=9.4, Dia.=5.5′, DC=2/; 15.0-cm R f/5 (38x); Maik Meyer (Limburg, Germany) [close to 9 mag star]
2015 July 16.94 UT: m1=9.3, Dia.=3.5′, DC=3; 25×100 B; Martin Lehky (Czech Republic)
2015 July 16.88 UT: m1=9.5, Dia.=6′, DC=2/; 15.0-cm R f/5 (38x); Maik Meyer (Frauenstein, Erzgebirge Mts., Germany)
2015 July 16.83 UT: m1=9.9 DSLR, Dia.=3′, DC=3; Digital Reflex+0,3m lens; Giuseppe Pappa (Sicily, Italy)
2015 July 15.82 UT: m1=10.0, Dia.=3.7′, DC=3; 25.5-cm L (70.6x); Danil Sidorko (Korenovsk, Russia) [Nearly bright star. Not good view]
2015 July 14.86 UT: m1=9.8 DSLR, Dia.=3′, DC=4; Digital Reflex+0,3m lens; Giuseppe Pappa (Sicily, Italy)
2015 July 14.03 UT: m1=9.1, Dia.=6′, DC=3; 20-cm SCT (77x): Juan José González (Santiago Millás, alt. 930 m, León, España)
2015 July 14.03 UT: m1=8.8, Dia.=7′, DC=3; 25×100 B; Juan José González (Santiago Millás, alt. 930 m, León, España)
2015 July 13.82 UT: m1=9.9, Dia.=4.5′, DC=2/; 25.5-cm L (70.6x); Danil Sidorko (Korenovsk, Russia)
2015 July 12.81 UT: m1=9.9, Dia.=4.2′, DC=2/; 25.5-cm L (70.6x); Danil Sidorko (Korenovsk, Russia)
2015 July 11.98 UT: m1=9.1, Dia.=3.5′, DC=3; 25×100 B; Martin Lehky (Czech Republic)
2015 July 11.95 UT: m1=9.7, Dia.=5.0′, DC=5;; 32.0-cm L f/5 (96x); Uwe Pilz (Leipzig, Germany)
2015 July 11.92 UT: m1=9.7, Dia.=6.5′, DC=4, Tail=0.30 deg. in PA: 300 deg.; 35-cm L (62x); Jakub Černý (Zachotin, Czech Republic)
2015 July 11.89 UT: m1=9.5, m2=13.5, Dia.=6.5′ (inner disc, dia.=0.16′), DC=d4, Tail=0.60 deg. in PA: 325 deg., 0.25 deg in PA: 290 deg.; 9×50 finder & 25-cm L (60x); Gábor Sánta (Zlatibor, Serbia)
2015 July 11.85 UT: m1=9.9, Dia.=4′, DC=2/; 25.5-cm L (46.2x); Danil Sidorko (Korenovsk, Russia)
2015 July 10.98 UT: m1=9.1, Dia.=3.5′, DC=3; 25×100 B; Martin Lehky (Czech Republic)
2015 July 10.97 UT: m2=12.7 DSLR, Dia.=&5′; 0.20-m f/4 reflector + DSLR camera; Taras Prystavski (Lviv, Ukraine) [Red light pollution zone; coma diameter can be underestimated]
2015 July 10.91 UT: m1=9.4, Dia.=6.5′, DC=4, Tail= 0.33 deg in PA: 305 deg.; 35-cm L (62x); Jakub Cerny Jakub Cerný (Zachotin, Czech Republic)
2015 July 10.90 UT: m1=9.5, Dia.=5′, DC=2; 20×80 B; Valentín Díaz (La Romaneta, Alicante, España)
2015 July 09.94 UT: m1=9.3, Dia.=5′, DC=4/; 20-cm L (42x); Alex Scholten (Eerbeek, Netherlands)
2015 July 08.90 UT: m1=9.3 DSLR, Dia.=3′, DC=3; Digital Reflex+0,3m lens; Giuseppe Pappa (Sicily, Italy)
2015 July 07.88 UT: m1=9.4, Dia.=4.8′, DC=2/; 20×80 B; Marek Biely (Brno, Czech Republic) [Already difficult object. Slight interference of astronomical twilight]
2015 July 07.87 UT: m1=9.3 DSLR, Dia.=3′, DC=3; Digital Reflex+0,3m lens; Giuseppe Pappa (Sicily, Italy)
2015 July 07.82 UT: m1=9.8, Dia.=4.9′, DC=3; 25.5-cm L (70.6x); Danil Sidorko (Korenovsk, Russia)
2015 July 06.999 UT: m1=9.2, Dia.=2′, DC=2; 11.4-cm L f/8 (45x); Neil Norman (Ipswich, England)
2015 July 06.90 UT: m1=8.9, Dia.=4′, DC=3; 25×100 B; Martin Lehky (Czech Republic)
2015 July 06.83 UT: m1=9.2 DSLR, Dia.=3′, DC=3; Digital Reflex+0,3m lens; Giuseppe Pappa (Sicily, Italy)
2015 July 04.87 UT: m1=9.2, Dia.=5.5′, DC=3; 20×80 B; Marek Biely (Brno, Czech Republic) [Slight interference of astronomical twilight]
2015 July 02.94 UT: m1=9.3, Dia.=3.0′, DC=1/; 12.0-cm R f/5 (40x); Uwe Pilz (Leipzig, Germany) [Full moon. Responds on SB filter]
2015 June 30.95 UT: m1=9.1, Dia.=6′ DC=2; 20-cm L (42x); Alex Scholten (Eerbeek, Netherlands) (twilight, moonlight)
2015 June 29.003 UT: m1=9, Dia.=2′, DC=2; 11.4-cm L f/8 (45x); Neil Norman (Ipswich, England)
2015 June 27.993 UT: m1=9.0, Dia.=4, DC=3; 11.4-cm L f/8 (45x); Neil Norman (Ipswich, England)
2015 June 26.93 UT: m2=13.2 DSLR, Dia.=&5.3′; 0.20-m f/4 reflector + DSLR camera; Taras Prystavski (Lviv, Ukraine) [Red light pollution zone; coma diameter can be underestimated]
2015 June 24.00 UT: m1=8.6, Dia.=7, DC=3; 11.4-cm L f/8 (45x); Neil Norman (Ipswich, England)
2015 June 23.93 UT: m1=9.9, Dia.=4′.4, DC=3/, Tail= 0.10 deg. in PA: 295 deg.; 35-cm L (107x); Jakub Cerny (Senohraby, Czech Republic)
2015 June 23.83 UT: m1=8.7 DSLR, Dia.=4′, DC=3; Digital Reflex+0,3m lens; Giuseppe Pappa (Sicily, Italy)
2015 June 20.93 UT: m1=8.3, Dia.=7′, DC=3, no cola; 15cm T (27x); Carlos Labordena (Castellón, España)
2015 June 20.92 UT: m1=8.4, Dia.=5′, DC=3, no cola; 8cm B (11x); Carlos Labordena (Castellón, España)
2015 June 20.90 UT: m1=8.6, Dia.=5′, DC=3; 20×60 B; Alexander Baransky (Bucha, Ukraine)
2015 June 20.02 UT: m1=8.6, Dia.=8′, DC=3; 20×60 B; José J. Chambó (Hoya Redonda, Valencia, España)
2015 June 19.98 UT: m1=8.6, Dia.=6′, DC=3/; 7.0-cm R, 20x; Alexander Baransky (Bucha, Ukraine)
2015 June 19.98 UT: m1=8.8, Dia.=6′, DC=3; 15.0-cm R, 56x; Alexander Baransky (Bucha, Ukraine)
2015 June 19.96 UT: m1=8.8, Dia.=9′, DC=3; 20×80 B; J. P. Navarro Pina (Bullas , Murcia , Spain)
2015 June 19.95 UT: m1=8.7, Dia.=4′, DC=3; 20×80 B; Valentín Díaz (La Romaneta, Alicante, España)
2015 June 18.84 UT: m1=8.7 DSLR, Dia.=4′, DC=3; Digital Reflex+0,3m lens; Giuseppe Pappa (Sicily, Italy)
2015 June 17.93 UT: m1=8.1, Dia.=8′, DC=3; 10×50 B; Juan José González (Alto del Castro, alt. 1720 m, León, España) [En 25x100B: m1=8.3, Dia.=5′, DC=4]
2015 June 16.97 UT: m1=8.6, Dia.=~8′, DC=2; 15×80 B; Alex Scholten (Eerbeek, Netherlands) (twilight)
2015 June 16.92 UT: m1=8.6, Dia.=5′, DC=3; 15.0-cm R f/5 (38x); Maik Meyer (Limburg, Germany)
2015 June 15.96 UT: m1=8.9, Dia.=5.0′, DC=3; 8.0-cm R f/6 (40x); Uwe Pilz (Leipzig, Germany)
2015 June 14.94 UT: m1=8.5, Dia.=5′, DC=4; 20×60 B; Alexander Baransky (Bucha, Ukraine)
2015 June 14.83 UT: m1=8.6 DSLR, Dia.=4′, DC=4; Digital Reflex+0,3m lens; Giuseppe Pappa (Sicily, Italy)
2015 June 12.92 UT: m1=8.4, Dia.=4′, DC=3; 25×100 B; Martin Lehky (Czech Republic)
2015 June 11.94 UT: m1=8.5, Dia.=8′, DC=2; 15×80 B; Alex Scholten (Eerbeek, Netherlands) (twilight)
2015 June 11.89 UT: m1=8.4, Dia.=4.5′, DC=3; 15.0cm R f/5 (38x); Maik Meyer (Limburg, Germany)
2015 June 10.84 UT: m1=8.5 DSLR, Dia.=5′, DC=3; Digital Reflex+0,3m lens; Giuseppe Pappa (Sicily, Italy)
2015 June 08.92 UT: m1=8.8, Dia.=3′, DC=2; 30.5-cm L F/4.9 (94x); J. P. Navarro Pina (El Palmar, Murcia, España) [Lm=4.3, comet very diffuse, not central condensation visible]
2015 June 07.89 UT: m1=8.3, Dia.=6′, DC=4; 20×60 B; Alexander Baransky (Bucha, Ukraine)
2015 June 06.93 UT: m1=8.2, Dia.=~8′, DC=2; 15x80B; Alex Scholten (Eerbeek, Netherlands) (twilight)
2015 June 06.92 UT: m1=8.2, Dia.=4.3′, DC=3; 25×100 B; Martin Lehky (Czech Republic)
2015 June 06.91 UT: m1=8.4, Dia.=4.4′, DC=3; 6.8-cm R (24x); Mieczyslaw Leszek Paradowski (Dąbrowa, Poland)
2015 June 06.89 UT: m1=8.3, Dia.=6′, DC=3; 20×80 B (20x); Marek Biely (Brno, Czech Republic) [Slight interference of astronomical twilight]
2015 June 06.89 UT: m1=8.3 DSLR, Dia.=4′, DC=3; Digital Reflex+0,3m lens; Giuseppe Pappa (Sicily, Italy)
2015 June 06.87 UT: m1=8.5, Dia.=5′, DC=3; 20×60 B; Alexander Baransky (Bucha, Ukraine)
2015 June 06.83 UT: m1=8.7, Dia.=4.8′, DC=3; 25.5-cm L (46.2x); Danil Sidorko (Korenovsk, Russia)
2015 June 05.92 UT: m1=8.2, Dia.=4′, DC=3; 25×100 B; Martin Lehky (Czech Republic)
2015 June 05.90 UT: m1=8.8, Dia.=15′, DC=3; 20×80 B; J. P. Navarro Pina (Bullas, Murcia, Spain)
2015 June 05.89 UT: m1=8.3, Dia.=6.5′, DC=3; 20×88 B; Maik Meyer (Frauenstein, Erzgebirge Mts., Germany)
2015 June 05.87 UT: m1=8.3, Dia.=5.5′, DC=3; 20×80 B (20x); Marek Biely (Brno, Czech Republic) [Slight interference of astronomical twilight.]
2015 June 04.97 UT: m1=8.7, Dia.=6.0′; 16×70 B; Uwe Pilz (Leipzig, Germany) [moon interference; large and diffuse]
2015 June 04.92 UT: m1=8.2, Dia.=4′, DC=3; 25×100 B; Martin Lehky (Czech Republic)
2015 June 04.89 UT: m1=8.2, Dia.=6.5, DC=3; 20×88 B; Maik Meyer (Frauenstein, Erzgebirge Mts., Germany)
2015 June 04.89 UT: m1=8.4:, Dia.=&5′, DC=2/; 20×80 B (20x); Marek Biely (Brno, Czech Republic) [Observation was influenced by strong moonlight. Slight interference of astronomical twilight]
2015 June 04.85 UT: m1=8.5, Dia.=4′, DC=3; 20×60 B; Alexander Baransky (Bucha, Ukraine)
2015 June 03.93 UT: m1=8.3, Dia.=~7′, DC=3; 20cm L f:4 (42x); Alex Scholten (Eerbeek, Netherlands)(twilight)
2015 June 03.00 UT: m1=8.3, Dia.=3.5′, DC=3; 25×100 B; Martin Lehky (Czech Republic)
2015 June 02.84 UT: m1=8.3, Dia.=4′, DC=3; 20×60 B; Alexander Baransky (Bucha, Ukraine) [Strong Moon interference]
2015 June 01.84 UT: m1=8.3, Dia.=5′, DC=3; 20×60 B; Alexander Baransky (Bucha, Ukraine) [Strong Moon interference]
2015 May  31.979 UT: m1=8.2, Dia.=4′, DC=2; 11.4cm L f/8 (45x); Neil Norman (Ipswich, England)
2015 May  31.90 UT: m1=8.2:, Dia.=6′, DC=3; 20×60 B; Alexander Baransky (Bucha, Ukraine) [Strong Moon interference; comet close to star of 9.1 mag]
2015 May  29.979 UT: m1=8.2, Dia.=5′, DC=2; 11.4cm L f/8 (45x); Neil Norman (Ipswich, England) [Strong Moon interference]
2015 May  29.84 UT: m1=8.0 DSLR, Dia.=4′, DC=3; Digital Reflex+0,3m lens; Giuseppe Pappa (Sicily, Italy)
2015 May. 29.41 UT: m1=7.8, Dia.=5′, DC=5; 10×50 B; Carl Hergenrother (Tucson, AZ, USA)
2015 May  28.94 UT: m1=7.9, Dia.=~8′, DC=4; 15×80 B; Alex Scholten (Eerbeek, Netherlands)
2015 May  28.88 UT: m1=8.1 DSLR, Dia.=4′, DC=3; Digital Reflex+0,3m lens; Giuseppe Pappa (Sicily, Italy)
2015 May  27.93 UT: m1=7.9, Dia.=8′, DC=3; 20×60 B; Alexander Baransky (Bucha, Ukraine)
2015 May  27.84 UT: m1=7.9 DSRL, Dia.=4′, DC=4; Digital Reflex+0,3m lens; Giuseppe Pappa (Sicily, Italy)
2015 May  26.979 UT: m1=8.0, Dia.=4′, DC=2/; 11.4cm L f/8 (45x); Neil Norman (Ipswich, England)
2015 May  25.993 UT: m1=8, Dia.=4′, DC=3; 11.4cm L f/8 (45x); Neil Norman (Ipswich, England)
2015 May  25.85 UT: m1=–, Dia.=5′, DC=4; 70-cm f/4 L + CCD; Alexander Baransky (Kyiv comet station MPC 585, Ukraine)
2015 May  24.979 UT: m1=8.0, Dia.=5′, DC=4; 11.4cm L f/8 (45x); Neil Norman (Ipswich, England)
2015 May  24.94 UT: m1=8.3; Dia.=6.0’, DC=3; 5.0-cm R (9x); Vyacheslav M. Ivanov (Kamysin, Russia)
2015 May  23.972 UT: m1=7.9, Dia.=5′, DC=4/; 11.4cm L f/8 (45x); Neil Norman (Ipswich, England)
2015 May  23.91 UT: m1=7.8, Dia.=9′, DC=3; 10×50 B; Alexander Baransky (Pylypovychi, Ukraine)
2015 May  23.79 UT: m1=8.0, Dia.=5.3′, DC=4/; 25.5-cm L (46.2x); Danil Sidorko (Korenovsk, Russia)
2015 May  22.99 UT: m1=8.2, Dia.=5′, DC=4, no cola; 15cm T (27x); Carlos Labordena (Castellón, España)
2015 May  22.98 UT: m1=8.1, Dia.=5′, DC=4, no cola; 8cm B (11x); Carlos Labordena (Castellón, España)
2015 May  22.85 UT: m1=–, Dia.=8′, Plasma tail=>8′ long in PA: 311 deg., dust tail=~ 6′ in PA: 316-107 deg.; 70-cm f/4 L + CCD; Alexander Baransky (Kyiv comet station MPC 585, Ukraine)
2015 May  22.82 UT: m1=7.8 DSLR, Dia.=5′, DC=5; Digital Reflex+0,3m lens; Giuseppe Pappa (Sicily, Italy)
2015 May  21.79 UT: m1=8.1, Dia.=5.5′, DC=4/; 25.5-cm L (46.2x); Danil Sidorko (Korenovsk, Russia)
2015 May  20.979 UT: m1=7.6, Dia.=6′, DC=4/; 11.4cm L f/8 (45x & 135x); Neil Norman (Ipswich, England)
2015 May  20.94 UT: m1=8.0, Dia.=8.0’, DC=3; 5.0-cm R (9x); Vyacheslav M. Ivanov (Kamysin, Russia) [Bright and compact coma. Very clear sky, not wind, t+5°C. LM=7.2m]
2015 May  20.84 UT: m1=–, Dia.=6′, Plasma tail=>13′ long in PA: 314 deg., dust tail=~ 6′ in PA: 324-57 deg.; 70-cm f/4 L + CCD; Alexander Baransky (Kyiv comet station MPC 585, Ukraine)
2015 May  20.84 UT: m1=7.9, Dia.=6′, DC=3; 7-cm (20x) R; Alexander Baransky (Lisnyky, MPC 585, Ukraine);
2015 May  19.958 UT: m1=7.6, Dia=6′, DC=3; 11.4cm L f/8 (45x); Neil Norman (Ipswich, England)
2015 May  19.83 UT: m1=7.6, Dia.=9′, DC=3/; 10×50 B; Alexander Baransky (Bucha, Ukraine)
2015 May  18.983 UT: m1=7.6, Dia.=5′, DC=3; 11.4cm L f/8 (45x); Neil Norman (Ipswich, England)
2015 May  18.91 UT: m1=7.7, Dia.=6′, DC=4/; 7.6-cm L f/4 (15x); Marek Biely (Brno, Czech Republic) [Already without visible tail, but still very easy and bright object]
2015 May  18.80 UT: m1=7.9 DSLR, Dia.=4′, DC=4; Digital Reflex+0,3m lens; Giuseppe Pappa (Sicily, Italy)
2015 May  15.90 UT: m1=7.9, Dia.=5′, GC=4; 20×80 B; Valentín Díaz (La Romaneta, Alicante, España)
2015 May  17.85 UT: m1=7.5, Dia.=5′, DC=6; 20×80 B; J. P. Navarro Pina (Campos del Rio, Murcia, Spain)
2015 May  16.12 UT: m1=7.6, Dia.=7′, DC=5; 10×50 B; Juan José González (Cueto Rosales, alt. 1420 m, León, España)
2015 May  15.91 UT: m1=7.6, Dia.=7.0′, DC=4; 7×50 B; Uwe Pilz (Leipzig, Germany) [In 32.0cm L f/5 (96x) Tail= 0.07 deg. PA: 232 deg.]
2015 May  15.89 UT: m1=7.7, Dia.=6.5′, DC=3/; 15.0cm R f/5 (38x); Maik Meyer (Limburg, Germany)
2015 May  15.83 UT: m1=7.6, Dia.=7′, DC=3; 10×50 B; Alexander Baransky (Bucha, Ukraine)
2015 May  14.78 UT: m1=7.8, Dia.=5′, DC=4/; 25.5-cm L (46.2x); Danil Sidorko (Korenovsk, Russia)
2015 May  13.941 UT: m1=7.5, Dia.=5′, DC=4; 11.4cm L f/8 (45x); Neil Norman (Ipswich, England)
2015 May  13.85 UT: m1=8.4, Dia.=4′, DC=3; 25×100 B; Martin Lehky (Czech Republic)
2015 May  13.85 UT: m1=7.6, Dia.=7′, DC=3; 10×50 B; Alexander Baransky (Bucha, Ukraine)
2015 May  12.94 UT: m1=7.9, Dia.=8′, DC=5; 15×80 B; Alex Scholten (Eerbeek, Netherlands)
2015 May  12.937 UT: m1=7.5, Dia.=5′,DC=4; 11.4cm L f/8 (45x); Neil Norman (Ipswich, England)
2015 May  12.88 UT: m1=–, Dia.=7′, Plasma tail=>11′ long in PA: 323 deg., dust tail=~ 8′ in PA: 340-108 deg.; 70-cm f/4 L + CCD; Alexander Baransky (Kyiv comet station MPC 585, Ukraine)
2015 May  12.85 UT: m1=7.7, Dia.=6′, DC=3; 7-cm R(20x); Alexander Baransky (Lisnyky, MPC 585, Ukraine)
2015 May  11.964 UT: m1=7.6, Dia.=5′, DC=3; 11.4cm L f/8 (45x); Neil Norman (Ipswich, England)
2015 May  11.91 UT: m1=7.5, Dia.=8′, DC=3; 10×50 B; Alexander Baransky (Bucha, Ukraine)
2015 May  11.85 UT: m1=8.3, Dia.=4′, DC=3/; 25×100 B; Martin Lehky (Czech Republic)
2015 May  10.97 UT: m1=7.6, Dia.=7′, DC=3; 10×50 B; Alexander Baransky (Bucha, Ukraine)
2015 May  10.94 UT: m1=7.1, Dia.=7.0′, DC=5; 7×50 B; Uwe Pilz (Leipzig, Germany) [In 32cm L (48x) Tail= 0.10 deg. PA: 310 deg.]
2015 May  10.94 UT: m1=7.8, Dia.=9.2′, DC=5, Tail= 0.40 deg. in PA: 340 deg.; 35cm L (64x); Jakub Cerny () [Coma well enhanced using SWAN band filter]
2015 May  10.89 UT: m1=7.5, Dia.=8′, DC=5/; 8×40 B; Jakub Cerny (Senohraby, Czech Republic)
2015 May  10.85 UT: m1=8.3, Dia.=4′, DC=3/; 25×100 B; Martin Lehky (Czech Republic)
2015 May  10.83 UT: m1=7.7 DSLR, Dia.=4′, DC=3; Digital Reflex+0,3m lens; Giuseppe Pappa (Sicily, Italy)
2015 May  09.953 UT: m1=7.6, Dia.=6′, DC=2/; 11.4cm L f/8 (45x); Neil Norman (Ipswich, England)
2015 May  09.92 UT: m1=7.4, Dia.=9′, DC=3; 7×35 B; Mieczyslaw Leszek Paradowski (Dąbrowa, Poland)
2015 May  08.976 UT: m1=7.5, Dia.=5′, DC=2/; 11.4cm L f/8 (45x); Neil Norman (Ipswich, England)
2015 May  08.89 UT: m1=8.1, Dia.=6′, DC=4; 20×80 B; Valentín Díaz (La Romaneta, Alicante, España)
2015 May  07.85 UT: m1=8.1, Dia.=4′, DC=3; 25×100 B; Martin Lehky (Czech Republic)
2015 May  07.76 UT: m1=7.7, Dia.=5′, DC=4; 25.5-cm L (46.2x); Danil Sidorko (Korenovsk, Russia)
2015 May  06.965 UT: m1=7.4, Dia.=6′, DC=6; 11.4cm L f/8 (45x & 135x); Neil Norman (Ipswich, England)
2015 May  06.91 UT: m1=8.0, Dia.=4′, DC=3; 25×100 B; Martin Lehky (Czech Republic)
2015 May  06.89 UT: m1=7.6, Dia.=9′, DC=4; 15×80 B; Alex Scholten (Eerbeek, Netherlands)
2015 May  06.85 UT: m1=7.3, Dia.=9.0′, DC=5; 7×50 B; Uwe Pilz (Leipzig, Germany) [In 16×70 B: Tail= 0.17 deg. PA: 5 deg.]
2015 May  05.958 UT: m1=7.5, Dia.=7.6, DC=6; 11.4cm L f/8 (45x); Neil Norman (Ipswich, England) [Comet appears more condensed than of late]
2015 May  05.88 UT: m1=7.7, Dia.=~9′, DC=3; 15×80 B; Alex Scholten (Eerbeek, Netherlands) (moonlight)
2015 May  05.85 UT: m1=7.6, Dia.=7′, DC=3; 7-cm R f/5 (20x); Alexander Baransky (Lisnyky, MPC 585, Ukraine)
2015 May  04.95 UT: m1=7.7, Dia.=4′, DC=3; 25×100 B; Martin Lehky (Czech Republic)
2015 May  03.90 UT: m1=7.5, Dia.=~9′, DC=2; 15×80 B; Alex Scholten (Eerbeek, Netherlands) (moonlight)
2015 May  03.81 UT: m1=7.5 DSLR, Dia.=5′, DC=4; Digital Reflex+0,3m lens; Giuseppe Pappa (Sicily, Italy)
2015 May  02.74 UT: m1=7.9, Dia.=6.5′, DC=6/; 40.0cm L f/4.5 (36x); Seiichi Yoshida (Gunma, Japan)
2015 May  02.92 UT: m1=7.7, Dia.=4′, DC=3; 25×100 B; Martin Lehky (Czech Republic)
2015 May  01.937 UT: m1=7.3, Dia.=5′, DC=2; 11.4-cm L f/8 (45x); Neil Norman (Ipswich, England) [denotes strong Moonlight]
2015 May  01.85 UT: m1=7.4, Dia.=20.0′, DC=2; 7×50 B; Uwe Pilz (Leipzig, Germany)
2015 May  01.74 UT: m1=7.5, Dia.=7.5′, DC=7; 40.0cm L f/4.5 (36x); Seiichi Yoshida (Gunma, Japan)
2015 Apr. 30.86 UT: m1=7.6, Dia.=5′, DC=3; 25×100 B; Martin Lehky (Czech Republic)
2015 Apr. 29.951 UT: m1=7.2, Dia.=7′, DC=2/, Tail= 0.1 deg. PA: 344 deg.; 11.4-cm L f/8 (45x); Neil Norman (Ipswich, England)
2015 Apr. 29.81 UT: m1=7.3, Dia.=7′, DC=3; 10×50 B; Alexander Baransky (Volodymyr-Volynsky, Ukraine)
2015 Apr. 28.90 UT: m1=7.2, Dia.=7′, DC=3; 10×50 B; Alexander Baransky (Volodymyr-Volynsky, Ukraine)
2015 Apr. 28.90 UT: m1=7.2, Dia.=~9′, DC=3; 15×80 B; Alex Scholten (Eerbeek, Netherlands) (moonlight)
2015 Apr. 28.90 UT: m1=7.5, Dia.=5′, DC=3; 25×100 B; Martin Lehky (Czech Republic)
2015 Apr. 27.85 UT: m1=7.2, Dia.=8′, DC=3; 10×50 B; Alexander Baransky (Volodymyr-Volynsky, Ukraine)
2015 Apr. 27.90 UT: m1=7.1, Dia.=~10′, DC=4; 10×50 B; Alex Scholten (Eerbeek, Netherlands) (moonlight)
2015 Apr. 26.916 UT: m1=7.2, Dia.=8′, DC=2/, Tail= 0.1 deg. PA: 350 deg.; 11.4-cm L f/8 (45x); Neil Norman (Ipswich, England)
2015 Apr. 26.88 UT: m1=7.2, Dia.=8′, DC=3; 10×50 B; Alexander Baransky (Volodymyr-Volynsky, Ukraine)
2015 Apr. 26.88 UT: m1=7.4, Dia.=5.5′, DC=3; 25×100 B; Martin Lehky (Czech Republic)
2015 Apr. 25.90 UT: m1=7.0, Dia.=~10′, DC=4; 10×50 B; Alex Scholten (Eerbeek, Netherlands) (moonlight)
2015 Apr. 25.05 UT: m1=7.3, Dia.=6′, DC=3/, Tail= 0.1 deg. in PA: 350 deg.; 7.6-cm L f/4 (15x); Marek Biely (Brno, Czech Republic) [Tail is very short, but still visible.]
2015 Apr. 25.04 UT: m1=7.1, Dia.=7.5′, DC=5; 7-15×35 B (11x); Marek Biely (Brno, Czech Republic)
2015 Apr. 23.90 UT: m1=7.0, Dia.=~10′, DC=5; 10×50 B; Alex Scholten (Eerbeek, Netherlands) (moonlight)
2015 Apr. 23.12 UT: m1=7.5, Dia.=6′, DC=3/; 15-cm T (37.5x); Salvador Aguirre (Observatorio Real del Molinito, Hermosillo, Sonora, Mex., Mexico)
2015 Abr. 22.90 UT: m1=7.3, Dia.=6′, DC=3; 25×100 B; Martin Lehky (Czech Republic)
2015 Apr. 22.88 UT: m1=7.0, Dia.=~10′, DC=5; 8×40 B; Alex Scholten (Eerbeek, Netherlands) (in 15x80B weak tail of about 0.25 degrees in PA 20 degrees)
2015 Apr. 22.84 UT: m1=7.2, Dia.=8′, DC=3; 20×88 B; Maik Meyer (Limburg, Germany)
2015 Apr. 22.05 UT: m1=7.3, Dia.=6.5′, DC=3/, Tail= 0.15 deg. in PA: 355 deg.; 7.6-cm L f/4 (38x); Marek Biely (Brno, Czech Republic) [Still very bright object with a bit of tail.]
2015 Apr. 21.917 UT: m1=7.1, Dia.=7′, DC=2/, Tail= 0.2 deg. PA: 352 deg., 11.4cm L f/8 (45x); Neil Norman (Ipswich, England)
2015 Apr. 21.88 UT: m1=7.5, Dia.=5.0′, DC=5, Tail= 0.70 deg. in PA: 0 deg.; 25×100 B; Jakub Cerný (Zachotin, Czech Republic) [Very faint, almost invisible in 40-cm reflector with no or very low condensation]
2015 Apr. 21.84 UT: m1=7.2, Dia.=7′, DC=4; 30×50 monocular (30x); Marek Biely (Brno, Czech Republic)
2015 Abr. 21.81 UT: m1=7.2, Dia.=6.5′, DC=3; 25×100 B; Martin Lehky (Czech Republic)
2015 Apr. 20.917 UT: m1=7.1, Dia.=7′, DC=3, Tail= 0.2 degrees in PA: 357 degrees; 11.4cm L f/8 (45x); Neil Norman (Ipswich, England)
2015 Apr. 20.91 UT: m1=7.1, Dia.=8′, DC=5; 10×50 B; Juan José González (Villasecino, alt. 1230 m, León, España)
2015 Apr. 20.84 UT: m1=7.2, Dia.=7′, DC=3/; 20×88 B; Maik Meyer (Limburg, Germany)
2015 Abr. 20.81 UT: m1=7.2, Dia.=6, DC=3; 25×100 B; Martin Lehky (Czech Republic)
2015 Apr. 19.89 UT: m1=6.9, Dia.=~10′, DC=5; 8×40 B; Alex Scholten (Eerbeek, Netherlands) (in 15x80B weak tail of about 0.3 degrees in PA 20 degrees)
2015 Apr. 19.89 UT: m1=7.1, Dia.=7′, DC=3/; 7-cm B (15x); Artyom Novichonok (Petrozavodsk, Russia)
2015 Apr. 19.83 UT: m1=7.1, Dia.=8′, DC=3/; 20×88 B; Maik Meyer (Limburg, Germany)
2015 Abr. 19.81 UT: m1=7.1, Dia.=6.5′, DC=3; 25×100 B; Martin Lehky (Czech Republic)
2015 Apr. 18.92 UT: m1=6.8, Dia.=~10′, DC=5; 10×50 B; Alex Scholten (Eerbeek, Netherlands)
2015 Apr. 18.917 UT: m1=6.9, Dia.=7′, DC=3/, Tail= 0.2 deg. PA: 357 deg.; 11.4cm L f/8 (45x); Neil Norman (Ipswich, England)
2015 Apr. 18.84 UT: m1=6.5, Dia.=12.0′, DC=7; 7×50 B; Uwe Pilz (Leipzig, Germany) [sky extremely clear]
2015 Apr. 18.84 UT: m1=7.1, Dia.=8′, DC=3/; 20×88 B; Maik Meyer (Limburg, Germany)
2015 Abr. 18.83 UT: m1=6.9, Dia.=6.5′, DC=3; 25×100 B; Martin Lehky (Czech Republic)
2015 Apr. 17.93 UT: m1=6.8, Dia.=~10′, DC=5; 8×40 B; Alex Scholten (Eerbeek, Netherlands) (in 15x80B weak tail of about 0.6 degrees in PA 15 degrees)
2015 Apr. 17.83 UT: m1=7.1, Dia.=8′, DC=3/; 20×88 B; Maik Meyer (Limburg, Germany)
2015 Apr. 17.75 UT: m1=7.1, Dia.=7′, DC=4; 25.5-cm L (46.2x); Danil Sidorko (Korenovsk, Russia)
2015 Apr. 17.13 UT: m1=7.0, Dia.=5′, DC=5; 10×50 B; Carl Hergenrother (Tucson, AZ, USA)
2015 Apr. 16.82 UT: m1=7.2, Dia.=7′, DC=3/; 10×50 B; Alexander Baransky (Bucha, Ukraine)
2015 Apr. 16.79 UT: m1=7.1 DSLR, Dia.=6′, DC=3; Digital Reflex+0,3m lens; Giuseppe Pappa (Sicily, Italy)
2015 Apr. 16.75 UT: m1=7.0, Dia.=7.5′, DC=5; 7-cm B (15x); Danil Sidorko (Korenovsk, Russia)
2015 Apr. 15.90 UT: m1=7.1:, Dia.=7′, DC=3/; 10×50 B; Alexander Baransky (Bucha, Ukraine) [Comet close to star 6.3 mag.]
2015 Apr. 15.84 UT: m1=7.1, Dia.=7, DC=3/; 20×88 B; Maik Meyer (Limburg, Germany)
2015 Abr. 15.81 UT: m1=6.8, Dia.=7.5′, DC=3; 25×100 B; Martin Lehky (Czech Republic)
2015 Apr. 14.917 UT: m1=6.7, Dia.=8′, DC=4/; 11.4cm L f/8 (45x) Neil Norman (Ipswich, England)
2015 Apr. 14.88 UT: m1=6.9, Dia.=~9′, DC=6; 10×50 B; Alex Scholten (Eerbeek, Netherlands) (in 15x80B weak tail of about 0.25 degrees in PA 20 degrees)
2015 Apr. 14.83 UT: m1=6.9, Dia.=9′, DC=3/; 20×88 B; Maik Meyer (Limburg, Germany)
2015 Apr. 13.87 UT: m1=6.9, Dia.=7′, DC=5; 10×50 B; Juan José González (Gamoniteiro, alt. 1760 m, Asturias, España)
2015 Apr. 13.85 UT: m1=6.9, Dia.=6′, DC=6; 20×80 B; J. P. Navarro Pina (Bullas, Murcia, Spain)
2015 Apr. 13.81 UT: m1=6.8, Dia.=6.0′, DC=4; 8×24 B; Uwe Pilz (Leipzig, Germany)
2015 Apr. 12.88 UT: m1=7.0, Dia.=7′, DC=3; 10×50 B; Alexander Baransky (Bucha, Ukraine)
2015 Apr. 12.83 UT: m1=6.9, Dia.=6.5′, DC=3/; 20×88 B; Maik Meyer (Limburg, Germany)
2015 Apr. 12.82 UT: m1=6.6, Dia.=8′, DC=5; 8×56 B; Sandor Szabo (Sopron, Hungary)
2015 Abr. 12.81 UT: m1=6.6, Dia.=6′, DC=3; 25×100 B; Martin Lehky (Czech Republic)
2015 Apr. 11.896 UT: m1=6.8, Dia.=7′, DC=3/, Tail= 0.3 degrees in PA: 3 degrees; 11.4cm L f/8 (45x); Neil Norman (Ipswich, England)
2015 Apr. 11.84 UT: m1=7.0, Dia.=8.0′, DC=7; 7×50 B; Uwe Pilz (Leipzig, Germany) [In 16×70 B: Dia.=8′, DC=7, Tail= 0.28 deg. PA: 44 deg.]
2015 Apr. 11.79 UT: m1=6.9, Dia.=9′, DC=3; 10×50 B; Alexander Baransky (Bucha, Ukraine)
2015 Apr. 11.77 UT: m1=6.7, Dia.=9′, DC=5; 7-cm B (15x); Danil Sidorko (Korenovsk, Russia)
2015 Abr. 10.80 UT: m1=6.4, Dia.=5′, DC=3; 25×100 B; Martin Lehky (Czech Republic)
2015 Apr. 10.80 UT: m1=6.8, Dia.=8′, DC=4; 8×56 B; Sandor Szabo (Sopron, Hungary)
2015 Apr. 09.84 UT: m1=6.8, Dia.=8′, DC=3/; 20×88 B; Maik Meyer (Limburg, Germany)
2015 Apr. 09.83 UT: m1=6.9, Dia.=10′, DC=3/; 10×50 B; Alexander Baranky (Bucha, Ukraine) [Tail: 0.4 deg. in PA 6 deg. with 20×60 B]
2015 Abr. 09.80 UT: m1=6.4, Dia.=5′, DC=3; 25×100 B; Martin Lehky (Czech Republic)
2015 Apr. 09.14 UT: m1=6.7, Dia.=6’, DC=6; 10×50 B; Carl Hergenrother (Tucson, AZ, USA)
2015 Apr. 08.89 UT: m1=6.9, Dia.=8′, DC=3; 10×50 B; Alexander Baranky (Bucha, Ukraine)
2015 Apr. 08.88 UT: m1=6.7, Dia.=~10′, DC=5; 10×50 B; Alex Scholten (Eerbeek, Netherlands)
2015 Apr. 08.82 UT: m1=6.9, Dia.=7′, DC=3/; 20×88 B; Maik Meyer (Limburg, Germany)
2015 Abr. 07.91 UT: m1=6.8, Dia.=7′, DC=4/, Cola= 0.5º en AP: 0º; 10×50 B; Juan José González (Alto del Cellerón, alt. 1190 m, León, España)
2015 Apr. 06.917 UT: m1=6.5, Dia=8′, DC=4, Tail= 0.5 degrees PA: 8 degrees; 11.4cm L f/8 (45x); Neil Norman (Ipswich, England)
2015 Apr. 06.84 UT: m1=6.7, Dia.=~10′ DC=5; 10×50 B; Alex Scholten (Eerbeek, Netherlands)
2015 Apr. 06.80 UT: m1=6.8, Dia.=6′, DC=2; 12×50 B; Giuseppe Pappa (Sicily, Italy)
2015 Apr. 06.80 UT: m1=6.8 DSLR, Dia.=6′, DC=2; Digital Reflex+0,3m lens; Giuseppe Pappa (Sicily, Italy)
2015 Apr. 05.81 UT: m1=6.7, Dia.=9′, DC=3/; 10×50 B; Maik Meyer (Frauenstein, Erzgebirge Mts., Germany)
2015 Apr. 05.79 UT: m1=6.7, Dia.=7′, DC=3/; 12×50 B; Giuseppe Pappa (Sicily, Italy)
2015 Abr. 04.81 UT: m1=6.3, Dia.=5′, DC=3; 25×100 B; Martin Lehky (Czech Republic)
2015 Abr. 03.81 UT: m1=6.3, Dia.=5′, DC=3; 25×100 B; Martin Lehky (Czech Republic)
2015 Apr. 03.81 UT: m1=6.5, Dia.=9′, DC=3/; 10×50 B; Maik Meyer (Frauenstein, Erzgebirge Mts., Germany)
2015 Apr. 01.19 UT: m1=6.1, Dia.=7′, DC=6; 20×80 B; J. P. Navarro Pina (El Palmar, Murcia, Spain)
2015 Apr. 01.11 UT: m1=[6.5; 5-cm B (7x); Salvador Aguirre (Hermosillo, Sonora, Mexico)
2015 Mar. 29.81 UT: m1=6.5 DSRL, Dia.=6′, DC=5; Digital Reflex+0.3m lens; Giuseppe Pappa (Sicily, Italy)
2015 Mar. 29.19 UT: m1=6.3, Dia.=6′, DC=2, Cola= 20′; 8cm B (11x); Carlos Labordena (Castellón, España)
2015 Mar. 29.11 UT: m1=[6.5; 5-cm B (7x); Salvador Aguirre (Hermosillo, Sonora, Mexico)
2015 Mar. 28.18 UT: m1=6.3, Dia.=7′, DC=5/, Cola= 0.5º en AP: 25º; 10×50 B; Juan José González (Alto de la Camperona – Sotillos de Sabero, alt. 1600 m, León, España)
2015 Mar. 28.11 UT: m2=10.0 CCD, Dia.=&11.0′ Tail=1.3 deg in PA 27 deg; [T20] 0.1-m f/5.0 astrograph + CCD; A. Novichonok & T. Prystavski (iTelescope observatory, H06 remotely from Mayhill, U.S.A.)
2015 Mar. 27.90 UT: m1=6.2, Dia.=~10′, DC=7;  8×56 B; Alex Scholten (Bussloo, Netherlands)
2015 Mar. 27.89 UT: m1=6.5, Dia.=6′, GC=4; 20×80 B; Valentín Díaz (La Romaneta, Alicante, España) (Interferencia lunar)
2015 Mar. 27.875 UT: m1=6.4, Dia.=7′, DC=4, Tail= 0.4 deg. PA: 20 deg.; 11.4cm L f/8 (45x); Neil Norman (Ipswich, England)
2015 Mar. 27.85 UT: m1=6.2, Dia.=8′, DC=6; 20×80 B; J. P. Navarro Pina (Bullas, Murcia, Spain)
2015 Mar. 27.11 UT: m1=6.5:, Dia.=&7′, DC=2/; 5-cm B (7x); Salvador Aguirre (Hermosillo, Sonora, Mexico)
2015 Mar. 26.10 UT: m1=[6.4; 5-cm B (7x); Salvador Aguirre (Hermosillo, Sonora, Mexico)
2015 Mar. 25.85 UT: m1=6.3, Dia.=8′, DC=3; 20×80 B; J. P. Navarro Pina (El Palmar, Murcia, Spain)
2015 Mar. 25.833 UT: m1=6.3, Dia.=8′, DC=3, Tail= 1.25 degrees in PA: 21 degrees; 11.4cm L f/8 (45x); Neil Norman (Ipswich, England)
2015 Mar. 25.82 UT: m1=6.4, Dia.=5′, DC=3, no cola; 8cm B (11x); Carlos Labordena (Castellón, España)
2015 Mar. 25.11 UT: m1=6.4, Dia.=6′, DC=2/; 5-cm B (7x); Salvador Aguirre (Observatorio Real del Molinito, Hermosillo, Sonora, Mexico)
2015 Mar. 24.11 UT: m1=6.0, Dia.=6′, DC=3/; 25×100 B; Martin Lehky (Czech Republic)
2015 Mar. 24.11 UT: m1=6.4, Dia.=&6′, DC=2; 5-cm B (7x); Salvador Aguirre (Hermosillo, Sonora, Mexico)
2015 Mar. 23.11 UT: m1=6.0, Dia.=6′, DC=3/; 25×100 B; Martin Lehky (Czech Republic)
2015 Mar. 22.87 UT: m1=6.2, Dia.=11′, DC=6; 10×50 B; Alex Scholten (Eerbeek, Netherlands)
2015 Mar. 22.82 UT: m1=6.3, Dia.=10′, DC=3/, Tail= 0.5 deg. PA: 30 deg.; 10×50 B; Maik Meyer (Limburg, Germany)
2015 Mar. 20.812 UT: m1=6.1, Dia.=7′, DC=4/, Tail= 0.5 degrees PA: 25 degrees; 11.4cm L f/8 (45); Neil Norman (Ipswich, England)
2015 Mar. 20.81 UT: m1=6.3, Dia.=7′, DC=3/; 20×88 B; Maik Meyer (Limburg, Germany)
2015 Mar. 20.79 UT: m1=6.2, Dia.=6.5′, DC=4, Tail= 0.2 deg. in PA: 25 deg.; 20×80 B; Marek Biely (Brno, Czech Republic) [The comet is almost not fading]
2015 Mar. 20.19 UT: m1=6.3, Dia.=5′, DC=4, no cola; 8cm B (11x); Carlos Labordena (Castellón, España)
2015 Mar. 19.81 UT: m1=6.2, Dia.=5′, DC=3; 20×88 B; Maik Meyer (Limburg, Germany)
2015 Mar. 19.80 UT: m1=6.1, Dia.=7′, DC=3, Tail= 0.4 deg. in PA 25 deg.; 20×80 B; Marek Biely (Brno, Czech Republic)
2015 Mar. 19.10 UT: m1=[6.2; 5-cm B (7x); Salvador Aguirre (Hermosillo, Sonora, Mexico)
2015 Mar. 18.84 UT: m1=6.4, Dia.=6.0′, DC=4; 8×56 B; Sandor Szabo (Sopron, Hungary)
2015 Mar. 18.79 UT: m1=6.1, Dia.=7′, DC=3/, Tail= 0.4 deg. in PA: 25 deg.; 20×80 B; Marek Biely (Brno, Czech Republic) [Little bit more diffuse.]
2015 Mar. 17.896 UT: m1=6.0, Dia.=7′, DC=5, Tail= 0.3 degrees PA: 27 degrees; 11.4cm L f/8 (45); Neil Norman (Ipswich, England)
2015 Mar. 17.80 UT: m1=6.2, Dia.=6′, DC=3/, Tail= 0.2 deg.; 20×88 B; Maik Meyer (Limburg, Germany)
2015 Mar. 17.79 UT: m1=6.1, Dia.=12.0′, DC=6, Tail= 0.67 deg. PA: 32 deg.; 8×24 B; Uwe Pilz (Leipzig, Germany) [In 16×70 B: Tail= 1.4 deg. PA: 35 deg.]
2015 Mar. 17.79 UT: m1=6.0, Dia.=7.5′, DC=4/, Tail= 0.5 deg. in PA: 25 deg.; 20×80 B; Marek Biely (Brno, Czech Republic) [Still very bright and with visible tail]
2015 Mar. 17.11 UT: m1=5.8, Dia.=8’, DC=7; 10×50 B; Carl Hergenrother (Tucson, AZ, USA)
2015 Mar. 16.82 UT: m1=6.1, Dia.=5′, DC=5, no cola; 8cm B (11x); Carlos Labordena (Castellón, España)
2015 Mar. 16.80 UT: m1=5.8, Dia.=8.5′, DC=5; 7×50 B; Mieczyslaw Leszek Paradowski (Lublin, Poland)
2015 Mar. 16.80 UT: m1=6.0, Dia.=8′, DC=3/; 10×50 B; Maik Meyer (Limburg, Germany)
2015 Mar. 16.80 UT: m1=6.1, Dia.=8′, DC=3; 20×80 B; J. P. Navarro Pina (San Jose de la Montaña, Murcia, Spain)
2015 Mar. 16.10 UT: m1=6.0:, Dia.=&6′, DC=2/; 5-cm B (7x); Salvador Aguirre (Hermosillo, Sonora, Mexico)
2015 Mar. 14.85 UT: m1=5.8, Dia.=6′, DC=5, Cola= 20′; 15cm T(27x); Carlos Labordena (Castellón, España)
2015 Mar. 14.84 UT: m1=5.7, Dia.=6′, DC=5, no cola; 8cm B (11x); Carlos Labordena (Castellón, España)
2015 Mar. 13.93 UT: m1=6.0, Dia.=10′, DC=7; 8×56 B; Alex Scholten (Bussloo, Netherlands)
2015 Mar. 13.924 UT: m1=5.8, Dia.=8′, DC=6, Tail= 0.5 degrees in PA: 40 degrees; 11.4cm L f/8 (45x); Neil Norman (Ipswich, England)
2015 Mar. 13.10 UT: m1=5.9, Dia.=5′, DC=3/; 5-cm B (7x); Salvador Aguirre (Hermosillo, Sonora, Mexico)
2015 Mar. 12.87 UT: m1=6.0, Dia.=8′, DC=1; 20×80 B; J. P. Navarro Pina (El Palmar, Murcia, Spain)
2015 Mar. 12.83 UT: m1=5.8, Dia.=6′, DC=6, Cola= 30′; 15cm T (27x); Carlos Labordena (Castellón, España)
2015 Mar. 12.82 UT: m1=5.7, Dia.=6′, DC=5, no cola; 8cm B (11x); Carlos Labordena (Castellón, España)
2015 Mar. 12.82 UT: m1=5.9, Dia.=11′, DC=7/; 8×40 B; Alex Scholten (Eerbeek, Netherlands) (weak tail of about 0.6 degrees in PA= 40 degrees)
2015 Mar. 11.83 UT: m1=5.8, Dia.=&10′, DC=7/; 8×40 B; Alex Scholten (Eerbeek, Netherlands) (weak tail of about 0.6 degrees in PA= 40 degrees)
2015 Mar. 11.79 UT: m1=5.8, Dia.=9′, DC=3/, Tail= 0.4 deg. PA: 40 deg.; 10×50 B; Maik Meyer (Weichstetten, near Steyr, Austria)
2015 Mar. 11.79 UT: m1=5.8, Dia.=8′, DC=6; 20×80 B; J. P. Navarro Pina (Campos del Rio, Murcia, Spain)
2015 Mar. 10.91 UT: m1=6.0, Dia.=8′, DC=6; 20×80 B; J. P. Navarro Pina (Bullas, Murcia, Spain)
2015 Mar. 10.80 UT: m1=5.8, Dia.=12′, DC=7/; 8×40 B; Alex Scholten (Eerbeek, Netherlands) [weak tail of about 0.6 degrees in PA= 45 degrees]
2015 Mar. 10.78 UT: m1=5.7, Dia.=9′, DC=3/, Tail= 0.6 deg. PA: 45 deg.; 10×50 B; Maik Meyer (Weichstetten, near Steyr, Austria)
2015 Mar. 10.13 UT: m1=5.8, Dia.=6’, DC=6; 10×50 B; Carl Hergenrother (Tucson, AZ, USA)
2015 Mar. 10.10 UT: m1=5.8, Dia.=&6′, DC=3/; 5-cm B (7x); Salvador Aguirre (Hermosillo, Sonora, Mexico)
2015 Mar. 09.83 UT: m1=5.9, Dia.=9′, DC=6, Cola= 0.8º en AP 45º; 10×50 B; Juan José González (Camposagrado, alt.1190 m, León, España)
2015 Mar. 09.80 UT: m1=5.5, Dia.=8.0′, DC=  8×24 B; Uwe Pilz (Leipzig, Germany) [In 16×70 B: Tail= 0.92 deg. PA: 47 deg.]
2015 Mar. 09.76 UT: m1=5.4, Dia.=10′, DC=3/; 25×100 B; Martin Lehky (Czech Republic)
2015 Mar. 09.10 UT: m1=5.8, Dia.=6′, DC=3/; 5-cm B (7x); Salvador Aguirre (Observatorio Real del Molinito, Hermosillo, Sonora, Mexico)
2015 Mar. 08.82 UT: m1=5.7, Dia.=9, DC=3/; 10×50 B; Maik Meyer (Limburg, Germany)
2015 Mar. 08.81 UT: m1=5.8, Dia.=12′, DC=7; 8×40 B; Alex Scholten (Eerbeek, Netherlands) [weak tail of about 0.7 degrees in PA= 50 degrees]
2015 Mar. 08.78 UT: m1=5.3, Dia.=10′, DC=3/; 25×100 B; Martin Lehky (Czech Republic)
2015 Mar. 07.83 UT: m1=5.8, Dia.=10′, DC=6, Cola= 1.7º en AP 45º; 10×50 B; Juan José González (Camposagrado, alt.1190 m, León, España)
2015 Mar. 07.82 UT: m1=5.8, Dia.=~13′, DC=7; 15×80 B; Alex Scholten (Eerbeek, Netherlands)
2015 Mar. 07.78 UT: m1=5.7, Dia.=9′, DC=3/; 10×50 B; Maik Meyer (Limburg, Germany)
2015 Mar. 06.87 UT: m1=5.3, Dia.=10′, DC=6; 20×80 B; J. P. Navarro Pina (Bullas, Murcia, Spain)
2015 Mar. 06.82 UT: m1=5.7, Dia.=9′, DC=3; 10×50 B; Maik Meyer (Limburg, Germany)
2015 Mar. 06.81 UT: m1=5.7, Dia.=7′, DC=3, no cola; 8cm B (11x); Carlos Labordena (Castellón, España)
2015 Mar. 06.805 UT: m1=5.6, Dia.=8′, DC=5; 11.4cm L f/8 (45x); Neil Norman (Ipswich, England)
2015 Mar. 06.10 UT: m1=5.8, Dia.=6′, DC=2/; 5-cm B (7x); Salvador Aguirre (Hermosillo, Sonora, Mexico)
2015 Mar. 05.87 UT: m1=5.3, Dia.=10′, DC=3; 20×80 B; J. P. Navarro Pina (El Palmar, Murcia, Spain) [Moonlight]
2015 Mar. 05.87 UT: m1=5.7, Dia.=~10′, DC=7/; 15×80 B; Alex Scholten (Eerbeek, Netherlands) [bright moonlight]
2015 Mar. 05.09 UT: m1=5.7, Dia.=7′, DC=2/; 5-cm B (7x); Salvador Aguirre (Hermosillo, Sonora, Mexico)
2015 Mar. 04.93 UT: m1=5.7, Dia.=~10′, DC=7; 15×80 B; Alex Scholten (Eerbeek, Netherlands) [bright moonlight]
2015 Mar. 04.83 UT: m1=5.8, Dia.=8′, DC=7, Cola= 0.8º en AP 45º; 10×50 B; Juan José González (Camposagrado, alt.1190 m, León, España) [Interferencia lunar]
2015 Mar. 04.78 UT: m1=5.6, Dia.=10′, DC=4; 10x50B; Maik Meyer (Limburg, Germany)
2015 Mar. 04.10 UT: m1=5.7, Dia.=7′, DC=2/; 5-cm B (7x); Salvador Aguirre (Hermosillo, Sonora, Mexico)
2015 Mar. 03.813 UT: m1=5.5, Dia.=9′, DC=5, Tail= 1 degree PA: 40 degrees; ; 11.4cm L f/8 (45x); Neil Norman (Ipswich, England)
2015 Mar. 03.73 UT: m1=5.6, Dia.=8′, DC=4; 7-cm B (15x); Danil Sidorko (Korenovsk, Russia)
2015 Mar. 02.89 UT: m1=5.3, Dia.=12′, DC=3; 20X80 B; J. P. Navarro Pina (El Palmar, Murcia, Spain)
2015 Mar. 02.88 UT: m1=5.7, Dia.=~10′, DC=7; 15×80 B; Alex Scholten (Eerbeek, Netherlands) [bright moonlight]
2015 Mar. 02.85 UT: m1=5.6, Día.=9′, DC=4, Tail= 0.5 deg. PA: 60 deg.; 10×50 B; Maik Meyer (Limburg, Germany)
2015 Mar. 02.823 UT: m1=5.6, Dia.=9′, DC=6, Tail= 0.75 degrees PA: 35 degrees; 11.4cm L f/8 (45x); Neil Norman (Ipswich, England)
2015 Mar. 02.79 UT: m1=5.0, Dia.=10′, DC=3/; 10×50 B; Martin Lehky (Czech Republic)
2015 Mar. 02.41 UT: m1=5.4, Dia.=7′, DC=3; 10x66R (10x); Seiichi Yoshida (Kanagawa, Japan)
2015 Mar. 01.80 UT: m1=5.8, Dia.=8′, DC=4, no cola; 8cm B (11x); Carlos Labordena (Castellón, España)
2015 Mar. 01.792 UT: m1=5.5, Dia.=8′, DC=5; 11.4cm L f/8 (45x); Neil Norman (Ipswich, England)
2015 Mar. 01.77 UT: m1=5.5, Dia.=8′, DC=4/, Tail= 0.3 deg. PA: 55 deg.; 10×50 B; Maik Meyer (Limburg, Germany)
2015 Mar. 01.09 UT: m1=5.6, Dia.=7′, DC=2/; 5-cm B (7x); Salvador Aguirre (Hermosillo, Sonora, Mexico)
2015 Feb. 28.77 UT: m1=5.5, Dia.=8′, DC=4/, Tail= 0.3 deg. PA: 65 deg.; 10×50 B; Maik Meyer (Limburg, Germany)
2015 Feb. 27.924 UT: m1=5.3, Dia.=9′, DC=4; 11.4cm L f/8 (45x); Neil Norman (Ipswich, England)
2015 Feb. 27.85 UT: m1=5.5, Dia.=10′, DC=6, Tail= 0.4º; 20×80 B; J. P. Navarro Pina (Bullas, Murcia, Spain)
2015 Feb. 27.84 UT: m1=5.5 CCD, Dia.=10′, DC=6; Digital Reflex+0.3m lens; Giuseppe Pappa (Sicily, Italy)
2015 Feb. 27.80 UT: m1=5.6, Dia.=~10′, DC=7; 8.5×42 B; Alex Scholten (Bussloo, Netherlands) (moonlight)
2015 Feb. 27.09 UT: m1=5.6, Dia.=&7′, DC=3/; 5-cm B (7x); Salvador Aguirre (Hermosillo, Sonora, Mexico)
2015 Feb. 26.931 UT: m1=5.3, Dia.=9′, DC=5; 11.4cm L f/8 (45x); Neil Norman (Ipswich, England)
2015 Feb. 26.10 UT: m1=5.5, Dia.=&7′, DC=3/; 5-cm B (7x); Salvador Aguirre (Hermosillo, Sonora, Mexico)
2015 Feb. 25.79 UT: m1=5.7, Dia.=5.0′, DC=7; 8×24 B; Uwe Pilz (Leipzig, Germany)
2015 Feb. 25.09 UT: m1=5.4, Dia.=&8′, DC=3/; 5-cm B (7x); Salvador Aguirre (Hermosillo, Sonora, Mexico)
2015 Feb. 24.09 UT: m1=5.4, Dia.=&8′, DC=3/; 5-cm B (7x); Salvador Aguirre (Hermosillo, Sonora, Mexico)
2015 Feb. 23.78 UT: m1=5.2, Dia.=~12′, DC=7; 8×40 B; Alex Scholten (Eerbeek, Netherlands) (moonlight)
2015 Feb. 23.10 UT: m1=5.3, Dia.=&10′, DC=3; 55-cm B (7x); Salvador Aguirre (Hermosillo, Sonora, Mexico)
2015 Feb. 22.81 UT: m1=5.2, Dia.=10′, DC=5, Cola=60′; 8cm B (11x); Carlos Labordena (Castellón, España)
2015 Feb. 22.78 UT: m1=5.4, Dia.=9′, DC=D4/, Tail= 0.8 deg. PA: 65 deg.; 10×50 B; Maik Meyer (Limburg, Germany)
2015 Feb. 21.792 UT: m1=5.2, Dia.=11′, DC=5, Tail= 1.8 degrees in PA: 51 degrees; 11.4cm L f/8 (45x); Neil Norman (Ipswich, England)
2015 Feb. 21.74 UT: m1=4.9, Dia.=15′, DC=4; 10×50 B; Martin Lehky (Czech Republic)
2015 Feb. 20.80 UT: m1=5.1, Dia.=15′, DC=6; 20×80 B; J. P. Navarro Pina (Campos del Rio, Murcia, Spain)
2015 Feb. 20.79 UT: m1=5.2, Dia.=11′, DC=5, Tail= 0.63deg in PA: 60deg.; 7×50 B; Mieczyslaw Leszek Paradowski (Lublin, Poland)
2015 Feb. 20.78 UT: m1=4.8, Dia.=15′, DC=4; 10×50 B; Martin Lehky (Czech Republic)
2015 Feb. 20.77 UT: m1=5.3, Dia.=11′, DC=5/, Tail= 1.6 deg. in PA: 60 deg.; 20×80 B; Marek Biely (Brno, Czech Republic) [Very well condensed again]
2015 Feb. 20.09 UT: m1=5.3, Dia.=&10′, DC=3/; 5-cm B (7x); Salvador Aguirre (Hermosillo, Sonora, Mexico)
2015 Feb. 19.82 UT: m1=5.0, Dia.=13′, DC=5, Cola=120′; 8cm B (11x); Carlos Labordena (Castellón, España)
2015 Feb. 19.77 UT: m1=4.8, Dia.=15′, DC=4; 10×50 B; Martin Lehky (Czech Republic)
2015 Feb. 19.76 UT: m1=5.4, Dia.=11.0′, DC=6; 8×24 B; Uwe Pilz (Leipzig, Germany) [In 16×70 B: Tail= 1.9 deg. in PA: 61 deg.]
2015 Feb. 19.09 UT: m1=5.3, Dia.=&10′, DC=4/; 5-cm B (7x); Salvador Aguirre (Hermosillo, Sonora, Mexico)
2015 Feb. 18.875 UT: m1=5.1, Dia.=12′, DC=6, Tail= 0.75 degrees in PA: 55 degrees; 11.4cm L f/8 X45x); Neil Norman (Ipswich, England)
2015 Feb. 18.80 UT: m1=5.2, Dia.=10′, DC=4/; 10×50 B; Maik Meyer (Limburg, Germany)
2015 Feb. 18.78 UT: m1=5.1, Dia.=16′, DC=7; 8×56 B; Alex Scholten (Bussloo, Netherlands)
2015 Feb. 18.69 UT: m1=5.1, Dia.=14′, DC=4/; 7-cm B (15x); Danil Sidorko (Korenovsk, Russia)
2015 Feb. 18.09 UT: m1=5.2, Dia.=&10′, DC=4/; 5-cm B (7x); Salvador Aguirre (Hermosillo, Sonora, Mexico)
2015 Feb. 17.81 UT: m1=5.1, Dia.=12′, DC=5, Tail= 1.0 deg. in PA: 60deg.; 7×50 B; Mieczyslaw Leszek Paradowski (Lublin, Poland)
2015 Feb. 17.78 UT: m1=5.2, Dia.=15′, DC=7; 8×40 B; Alex Scholten (Eerbeek, Netherlands)
2015 Feb. 17.773 UT: m1=4.9, Dia.=12.5′, DC=6. Tail= 2 degrees in PA: 63 degrees; 11.4cm L f/8 (45x); Neil Norman (Ipswich, England)
2015 Feb. 17.08 UT: m1=5.2, Dia.=&10′, DC=4/; 5-cm B (7x); Salvador Aguirre (Hermosillo, Sonora, Mexico)
2015 Feb. 16.86 UT: m1=5.1, Dia.=12.5′, DC=4/, Tail= 1.75 deg. in PA: 60 deg.; 20×80 B; Marek Biely (Brno, Czech Republic) [Much longer visible tail than the night before]
2015 Feb. 16.77 UT: m1=5.1, Dia.=~15′, DC=7; 8×40 B; Alex Scholten (Eerbeek, Netherlands)
2015 Feb. 16.76 UT: m1=4.4, Dia.=20′, DC=5/; naked eye; Martin Lehky (Czech Republic)
2015 Feb. 16.75 UT: m1=5.1, Dia.=12′, DC=5, Tail= 1.15 deg. in PA: 60 deg.; 7×50 B; Mieczyslaw Leszek Paradowski (Lublin, Poland) [wind(-2 C): elevation 240m]
2015 Feb. 15.84 UT: m1=5.1, Dia.=16′, DC=7; 8×40 B; Alex Scholten (Eerbeek, Netherlands) (in 15x80B weak tail of about 0.4 degree in PA 65 degrees)
2015 Feb. 15.83 UT: m1=5.2, Dia.=8′, DC=5; 10×50 B; Valentín Díaz (Elche, Spain)
2015 Feb. 15.81 UT: m1=5.5, Dia.=25′, DC=6; 8-cm B (20x); J. P. Navarro Pina (San José de la Montaña, Murcia, Spain)
2015 Feb. 15.78 UT: m1=5.1, Dia.=12′, DC=4/, Tail= 0.8 deg. in PA: 65 deg.; 20×80 B; Marek Biely (Brno, Czech Republic) [It became somewhat diffuse within few days]
2015 Feb. 15.78 UT: m1=5.0, Dia.=12′, DC=6/, Tail= 2.10 deg in PA: 65 deg.; 8×40 B; Jakub Cerný (Zachotin, Czech Republic)
2015 Feb. 15.77 UT: m1=4.8, DC=9; Naked eye; Jakub Cerný (Zachotin, Czech Republic)
2015 Feb. 15.77 UT: m1=4.8, Dia.=8′, DC=7, Tail= 1.80 deg. in PA: 65 deg.; 8×40 B; Jakub Cerný (Zachotin, Czech Republic)
2015 Feb. 15.77 UT: m1=5.1, Dia.=13′, DC=D4/, Tail= 0.6 deg. in PA: 75 deg.; 10×50 B; Maik Meyer (Limburg, Germany)
2015 Feb. 15.76 UT: m1=4.4, Dia.=20′, DC=5/; naked eye; Martin Lehky (Czech Republic)
2015 Feb. 15.44 UT: m1=4.7, Dia.=16′, DC=6; 10x66R (10x); Seiichi Yoshida (Kanagawa, Japan)
2015 Feb. 15.15 UT: m1=5.0, Dia.=14′, DC=4/; 5-cm B (7x); Salvador Aguirre (Hermosillo, Sonora, Mexico)
2015 Feb. 14.917 UT: m1=5.0, Dia.=14′, DC=7; 11.4cm L f/8 (45x); Neil Norman (Ipswich, England)
2015 Feb. 14.81 UT: m1=5.1, Dia.=~20′, DC=7; 8×40 B; Alex Scholten (Eerbeek, Netherlands)
2015 Feb. 14.79 UT: m1=5.1, Dia.=13′, DC=6, Tail= 0.71 deg. in PA: 64 deg.; 7×50 B; Mieczyslaw Leszek Paradowski (Lublin, Poland)
2015 Feb. 14.77 UT: m1=5.1, Dia.=13´, DC=D4/, Tail= 0.6 deg. in PA: 66 deg.; 10×50 B; Maik Meyer (Limburg, Germany)
2015 Feb. 14.71 UT: m1=5.0, Dia.=17′, DC=4; 7-cm B (15x); Danil Sidorko (Korenovsk, Russia)
2015 Feb. 14.40 UT: m1=5.0, Dia.=15′, DC=5; 10x66R (10x); Seiichi Yoshida (Kanagawa, Japan)
2015 Feb. 13.96 UT: m1=5.0, Dia.=20′, DC=3; 20×80 B; J. P. Navarro Pina (El Palmar, Murcia, Spain)
2015 Feb. 13.86 UT: m1=5.0, Dia.=13′, DC=5, Tail= 1.15 deg. in PA: 75 deg.; 20×80 B; Marek Biely (Brno, Czech Republic) [Still very nice object]
2015 Feb. 13.84 UT: m1=5.1, Dia.=15′, DC=7; 8×56 B; Alex Scholten (Bussloo, Netherlands) (weak tail of about 0.6 degree in PA 70 degrees)
2015 Feb. 13.826 UT: m1=5.0, Dia.=13′, DC=6; 11.4cm L f/8 (45x); Neil Norman (Ipswich, England)
2015 Feb. 13.82 UT: m1=4.8, Dia.=14′, DC=5, Cola=120′; 8cm B (11x); Carlos Labordena (Castellón, España)
2015 Feb. 13.77 UT: m1=4.9; Naked eye; Uwe Pilz (Leipzig, Germany) [In 32.0cm L f/5 (96x): Dia.=9.0′, DC=7, Tail= 0.55 deg. in PA: 61 deg.]
2015 Feb. 13.76 UT: m1=5.0, Dia.=15′, DC=6; 7×50 B; Mieczyslaw Leszek Paradowski (Dąbrowica, Poland)
2015 Feb. 13.76 UT: m1=5.0, Dia.=12.5′, DC=D4; 10×50 B; Maik Meyer (Limburg, Germany)
2015 Feb. 13.74 UT: m1=4.4, Dia.=20′, DC=5/; naked eye; Martin Lehky (Czech Republic)
2015 Feb. 13.70 UT: m1=5.0, Dia.=15′, DC=4/; 7-cm B (15x); Danil Sidorko (Korenovsk, Russia)
2015 Feb. 13.09 UT: m1=4.9, Dia.=14′, DC=4/; 5-cm B (7x); Salvador Aguirre (Hermosillo, Sonora, Mexico)
2015 Feb. 12.90 UT: m1=5.0, Dia.=14′, DC=5/, Tail= 0.9 deg. in PA: 80 deg.; 20×80 B; Marek Biely (Brno, Czech Republic) [Already not visible by the naked eye. Slight interference of star with brightness 7.2 mag inside a coma]
2015 Feb. 12.73 UT: m1=5.0, Dia.=11′, DC=4/, Tail= 0.3 deg. in PA: 60 deg.; 25.5-cm L (70.6x); Danil Sidorko (Korenovsk, Russia)
2015 Feb. 12.70 UT: m1=4.9, Dia.=16′, DC=4/; 7-cm B (15x); Danil Sidorko (Korenovsk, Russia)
2015 Feb. 12.09 UT: m1=4.8, Dia.=14′, DC=4/; 5-cm B (7x); Salvador Aguirre (Hermosillo, Sonora, Mexico)
2015 Feb. 11.16 UT: m1=4.9, Dia.=&12′, DC=4/; 5-cm B (7x); Salvador Aguirre (Hermosillo, Sonora, Mexico)
2015 Feb. 10.79 UT: m1=4.7, Dia.=13′, DC=6, Cola= 40′; 8cm B (11x); Carlos Labordena (Castellón, España)
2015 Feb. 10.76 UT: m1=5.0, Dia.=13′, DC=5/; 12×50 B; Giuseppe Pappa (Sicily, Italy)
2015 Feb. 10.48 UT: m1=4.7, Dia.=13′, DC=5; 10x66R (10x); Seiichi Yoshida (Kanagawa, Japan)
2015 Feb. 10.09 UT: m1=4.8, Dia.=&11′, DC=4; 5-cm B (7x); Salvador Aguirre (Hermosillo, Sonora, Mexico)
2015 Feb. 09.937 UT: m1=4.8, Dia.=20′, DC=6, Tail= 0.5 deg. in P.A: 63 deg.; 11.4cm L f/8 (45x); Neil Norman (Ipswich, England) [Comet is as last night’s observation with the difference only of hardly any tail visible. Comet 33 degrees high]
2015 Feb. 09.49 UT: m1=4.4, Dia.=15′, DC=5; 10x66R (10x); Seiichi Yoshida (Kanagawa, Japan)
2015 Feb. 09.17 UT: m1=5.0, Dia.=12’, DC=6; naked eye; Carl Hergenrother (Tucson, AZ, USA)
2015 Feb. 09.08 UT: m1=4.9, Dia.=&11′, DC=3/; 5-cm B (7x); Salvador Aguirre (Hermosillo, Sonora, Mexico)
2015 Feb. 08.89 UT: m1=5.0, Dia.=9′, DC=5, 5×25 B; Valentín Díaz (Elche capital, Spain) [20×80 B: Tail= 0.4º in AP: 72º]
2015 Feb. 08.85 UT: m1=4.9, Dia.=25′, DC=6, Tail= 0,5º; 20×80 B; J. P. Navarro Pina (El Palmar, Murcia, Spain)
2015 Feb. 08.84 UT: m1=4.9, Dia.=15′, DC=7; 12×50 B; Giuseppe Pappa (Sicily, Italy)
2015 Feb. 08.81 UT: m1=4.9, Dia.=13′, DC=6, Cola= 40′; 8cm B (11x); Carlos Labordena (Castellón, España)
2015 Feb. 08.792 UT: m1=4.8, Dia.=20′, DC=6, Tail= 1 degree in PA: 90 degrees; 11.4cm L f/8 (45x); Neil Norman (Ipswich, England) [Comet close to star hip 9218 which gave the appearance of a false nucleus. Coma shrunken in size but well condensed]
2015 Feb. 08.77 UT: m1=4.9, DC=8; Maik Meyer (Limburg, Germany)
2015 Feb. 08.77 UT: m1=4.9, Dia.=13′, DC=D5, Tail= 0.6 deg. in PA: 90 deg.; 7×50 B; Maik Meyer (Limburg, Germany)
2015 Feb. 08.75 UT: m1=4.5, Dia.=8.0′; Naked eye; Uwe Pilz (Leipzig, Germany) [In 12.0cm R f/5 (40x): Dia.=8.0, DC=6, Tail= 0.55 deg. in PA: 51 deg.]
2015 Feb. 08.42 UT: m1=4.8, Dia.=14′, DC=4/; 10x66R (10x); Seiichi Yoshida (Kanagawa, Japan)
2015 Feb. 07.96 UT: m1=4.8, Dia.=10′, DC=5/; 5-cm B (7X); Marco Antonio Coelho Goiato (Araçatuba, Brazil) [Nautical twilight, comet altitude: 14º]
2015 Feb. 07.76 UT: m1=4.7, Dia.=10′, DC=6; naked eye; Sandor Szabo (Sopron, Hungary)
2015 Feb. 07.76 UT: m1=4.9, Dia.=14.5′, DC=7/, Tail: 1.5 deg. in PA 90 deg.; 7-15×35 B (7x); Marek Biely (Brno, Czech Republic)
2015 Feb. 07.76 UT: m1=4.8:, Dia.=&15′, DC=0/; naked eye (1x); Marek Biely (Brno, Czech Republic) [Maybe last time visible by the naked eye. I did not manage to spot a significant central condensation. Limit observation.]
2015 Feb. 07.75 UT: m1=4.6, Dia.=15′, DC=5; 10×50 B; Martin Lehky (Czech Republic)
2015 Feb. 06.80 UT: m1=5.0, Dia.=13′, DC=6; 12×50 B; Giuseppe Pappa (Sicily, Italy)
2015 Feb. 06.78 UT: m1=4.8, Dia.=~20′, DC=7; 8×56 B; Alex Scholten (Eerbeek, Netherlands)(weak tail of about 1.1 degree in PA 75 degrees)
2015 Feb. 06.76 UT: m1=4.9, Dia.=15′, DC=D5, Tail= 0.6 deg. in PA: 85 deg.; 10×50 B; Maik Meyer (Limburg, Germany)
2015 Feb. 06.10 UT: m1=5.0, Dia.=10’, DC=7; 10×50 B; Carl Hergenrother (Tucson, AZ, USA)
2015 Feb. 06.09 UT: m1=4.8, Dia.=14′, DC=3/; 5-cm B (7x); Salvador Aguirre (Hermosillo, Sonora, Mexico)
2015 Feb. 05.96 UT: m1=4.8, Dia.=25′, DC=6; 20×80 B; J. P. Navarro Pina (El Palmar, Murcia, Spain)
2015 Feb. 05.87 UT: m1=4.9, Dia.=~18′, DC=7; 8×40 B; Alex Scholten (Eerbeek, Netherlands) (moonlight)
2015 Feb. 05.83 UT: m1=4.9, Dia.=12′, DC=D5, Tail= 0.5 deg. in PA: 95 deg.; 10×50 B; Maik Meyer (Limburg, Germany)
2015 Feb. 05.82 UT: m1=4.8, Dia.=12.0′, DC=6; 8×24 B; Uwe Pilz (Leipzig, Germany)
2015 Feb. 05.08 UT: m1=4.8, Dia.=&14′, DC=3/; 5-cm B (7x); Salvador Aguirre (Hermosillo, Sonora, Mexico)
2015 Feb. 04.79 UT: m1=4.8, Dia.=12.5′, DC=D5; 10×50 B; Maik Meyer (Limburg, Germany)
2015 Feb. 04.80 UT: m1=4.7, Dia.=~18′, DC=7; 8×40 B; Alex Scholten (Eerbeek, Netherlands) (moonlight)
2015 Feb. 04.74 UT: m1=4.9, Dia.=12′, DC=5; 7-cm B (15x); Danil Sidorko (Korenovsk, Russia)
2015 Feb. 04.08 UT: m1=4.7, Dia.=15′, DC=3/; 5-cm B (7x); Salvador Aguirre (Hermosillo, Sonora, Mexico)
2015 Feb. 03.93 UT: m1=4.8, Dia.=~18′, DC=5; 8×40 B; Alex Scholten (Eerbeek, Netherlands) (moonlight)
2015 Feb. 03.83 UT: m1=4.8, Dia.=13′, DC=D5; 10×50 B; Maik Meyer (Limburg, Germany)
2015 Feb. 03.80 UT: m1=4.9, Dia.=15′, DC=6; 12×50 B; Giuseppe Pappa (Sicily, Italy)
2015 Feb. 03.49 UT: m1=4.9, Dia.=12′, DC=6; 8×42 B; Katsumi Yoshimoto (Yamaguchi, Japan)
2015 Feb. 03.47 UT: m1=4.7, Dia.=12′, DC=4/; 10x66R (10x); Seiichi Yoshida (Kanagawa, Japan)
2015 Feb. 03.08 UT: m1=4.6, Dia.=&15′, DC=3/; 5-cm B (7x); Salvador Aguirre (Hermosillo, Sonora, Mexico)
2015 Feb. 02.80 UT: m1=4.8, Dia.=17′, DC=7; 12×50 B; Giuseppe Pappa (Sicily, Italy)
2015 Feb. 02.48 UT: m1=4.8, Dia.=14′, DC=4/; 10x66R (10x); Seiichi Yoshida (Kanagawa, Japan)
2015 Feb. 02.08 UT: m1=4.5, Dia.=&18′, DC=4; 5-cm B (7x); Salvador Aguirre (Hermosillo, Sonora, Mexico)
2015 Feb. 01.97 UT: m1=4.7, Dia.=12′, DC=6; 5-cm B (7X); Marco Antonio Coelho Goiato (Araçatuba, Brazil) [Clouds, moonlight]
2015 Feb. 01.87 UT: m1=4.7, Dia.=~20′, DC=6; 8×40 B; Alex Scholten (Eerbeek, Netherlands) (moonlight)
2015 Feb. 01.80 UT: m1=4.8, Dia.=19′, DC=6; 12×50 B; Giuseppe Pappa (Sicily, Italy)
2015 Feb. 01.79 UT: m1=4.6, Dia.=15′, DC=5, Cola= 30′; 8cm B (11x); Carlos Labordena (Castellón, España)
2015 Feb. 01.79 UT: m1=4.9, Dia.=10.0′, DC=6; 8×24 B; Uwe Pilz (Leipzig, Germany)
2015 Feb. 01.72 UT: m1=4.5, Dia.=22′, DC=5; 7×50 B; Mieczyslaw Leszek Paradowski (Lublin, Poland) [Moonlight; cat. TK]
2015 Feb. 01.71 UT: m1=4.6, Dia.=22′, DC=5; 7×35 B; Mieczyslaw Leszek Paradowski (Lublin, Poland) [Moonlight; cat. TK]
2015 Feb. 01.45 UT: m1=5.0, Dia.=14′, DC=5/; 8×42 B; Katsumi Yoshimoto (Yamaguchi, Japan)
2015 Feb. 01.43 UT: m1=4.7, Dia.=15′, DC=4; 10x66R (10x); Seiichi Yoshida (Kanagawa, Japan)
2015 Feb. 01.08 UT: m1=4.4, Dia.=18′, DC=4; 5-cm B (7x); Salvador Aguirre (Hermosillo, Sonora, Mexico)
2015 Jan. 31.86 UT: m1=4.8, Dia.=25′, DC=3; 5-cm B (10x); J. P. Navarro Pina (El Palmar, Murcia, Spain) [Tycho 2 cat. stars comp. 58 And , 59 And]
2015 Jan. 31.83 UT: m1=4.8, Dia.=12.0′, DC=6; 8×24 B; Uwe Pilz (Leipzig, Germany)
2015 Jan. 31.83 UT: m1=4.6, Dia.=~20′, DC=6; 8×40 B; Alex Scholten (Eerbeek, Netherlands) (moonlight)
2015 Jan. 31.75 UT: m1=4.7, Dia.=12′, DC=D5; 10×50 B; Maik Meyer (Limburg, Germany)
2015 Jan. 31.43 UT: m1=4.7, Dia.=16′, DC=5; 10x66R (10x); Seiichi Yoshida (Kanagawa, Japan)
2015 Jan. 30.98 UT: m1=4.6, Dia.=15′, DC=6; 5-cm B (7X); Marco Antonio Coelho Goiato (Araçatuba, Brazil) [clouds, moonlight]
2015 Jan. 30.71 UT: m1=4.8, Dia.=14′, DC=7; 25.5-cm L (46.2x); Danil Sidorko (Korenovsk, Russia)
2015 Jan. 29.84 UT: m1=4.2, Dia.=15′, DC=5, Cola= 60′; 8cm B (11x); Carlos Labordena (Castellón, España)
2015 Jan. 29.75 UT: m1=4.5, Dia.=9.0′, DC=6; 8×24 B; Uwe Pilz (Leipzig, Germany)
2015 Jan. 29.08 UT: m1=4.4, Dia.=14′, DC=3/; 5-cm B (7x); Salvador Aguirre (Hermosillo, Sonora, Mexico)
2015 Jan. 28.97 UT: m1=4.6, Dia.=~20′, DC=6; 8×40 B; Alex Scholten (Eerbeek, Netherlands) (moonlight)
2015 Jan. 28.78 UT: m1=4.5, Dia.=30′, DC=8; 20×80 B; J. P. Navarro Pina (Campos del Rio, Murcia, Spain)
2015 Jan. 28.52 UT: m1=4.2, Dia.=16′, DC=5/; 10x66R (10x); Seiichi Yoshida (Kanagawa, Japan)
2015 Jan. 28.12 UT: m1=4.3:, Dia.=&14′, DC=4/; 5-cm B (7x); Salvador Aguirre (Hermosillo, Sonora, Mexico)
2015 Jan. 27.89 UT: m1=4.5, Dia.=~20′, DC=6; 8×40 B; Alex Scholten (Eerbeek, Netherlands) (moonlight)
2015 Jan. 26.91 UT: m1=4.5:, Dia.=&17′, DC=2/, naked eye; Marek Biely (Brno, Czech Republic) [Already very faint and diffuse by naked eye. Slight interference of moonlight. Limit observation.]
2015 Jan. 26.91 UT: m1=4.7, Dia.=15′, DC=6, Tail= 0.3 deg. in PA: 80 deg.; 20×80 B; Marek Biely (Brno, Czech Republic) [Still very easy object. Slight interference of moonlight.]
2015 Jan. 25.76 UT: m1=4.6, Dia.=15′, DC=6; 10×50 B; Martin Lehky (Czech Republic)
2015 Jan. 25.56 UT: m1=4.5, Dia.=20′, DC=5; 11×80 B; Angelito Sing (Makati, Philippines)
2015 Jan. 26.56 UT: m1=4.5, Dia.=23′, DC=5, Tail= 1.5 deg. in PA: 112 deg.; 11×80 B; Angelito Sing (Makati, Philippines) [compared to 39 Ari. tail faintly visible]
2015 Jan. 25.49 UT: m1=~4.3; Naked eye; David A. J. Seargent (Cowra, NSW, Australia) [Magnitude approximate]
2015 Jan. 25.43 UT: m1=4.5, Dia.=16’, DC=5; 7×50 B; Chris Wyatt (Walcha, NSW, Australia) [Faint tail visible, 1.6° in length in PA 076°; Moonlight. Outer coma diffuse, inner coma not quite stellar]
2015 Jan. 25.00 UT: m1=4.7, Dia.=16′, DC=5; 10×50 B; Alberto Anunziato (Paraná, Argentina)
2015 Jan. 25.00 UT: m1=4.6, Dia.=18′, DC=5/; 10×70 B; Jorge Luis Salas (San Diego, Carabobo, Venezuela)
2015 Jan. 24.95 UT: m1=4.6, Dia.=13′, DC=4; 10×50 B; Alexandre Amorim (Florianopolis, Brazil) [light pollution and moonlight]
2015 Jan. 24.81 UT: m1=4.5, Dia.=-‘, DC=7; naked eye; Alex Scholten (Eerbeek, Netherlands) (moonlight)
2015 Jan. 24.81 UT: m1=4.4, Dia.=~20′, DC=6; 8×40 B; Alex Scholten (Eerbeek, Netherlands) (moonlight)
2015 Jan. 24.81 UT: m1=4.6, Dia.=&18´, DC=D6; 10×50 B; Maik Meyer (Limburg, Germany)
2015 Jan. 24.55 UT: m1=4.3, Dia.=19′, DC=5; 10x66R (10x); Seiichi Yoshida (Kanagawa, Japan)
2015 Jan. 24.45 UT: m1=4.4, Dia.=27’, DC=6; 7×50 B; Chris Wyatt (Walcha, NSW, Australia) [Faint tail visible, 3° in length in PA 076°; Easy naked eye object but clouds thwarted attempts to estimate magnitude. Coma edges diffused and gradually brightening to a small stellar centre, observed in cloud gaps]
2015 Jan. 24.043 UT: m1=4.6, Dia.=12′, DC=5; 20×50 B; Luis Mansilla (Rosario, Argentina) [polución lumínica]
2015 Jan. 23.98 UT: m1=4.5, Dia.=18′, DC=5/; 10X70 B; Jorge Luis Salas (San Diego, Carabobo, Venezuela) [nubes]
2015 Jan. 23.97 UT: m1=4.6, Dia.=12′, DC=5; 10×50 B; Alexandre Amorim (Florianopolis, Brazil)
2015 Jan. 23.93 UT: m1=4.7, Dia.=25′, DC=6; 10×50 B; J. P. Navarro Pina (El Palmar, Murcia, Spain) [excellent seeing, cat.Tycho-2, stars comp. 1793-1611-1 4.6 , 2325-347-1 6.7]
2015 Jan. 23.92 UT: m1=4.3, Dia.=20′, DC=7; 5×25 B; Valentín Díaz (La Romaneta, Alicante, Spain) [20×80 B: Tail=1º, AP=75º]
2015 Jan. 23.89 UT: m1=4.2, Dia.=23′, DC=7, Cola= 90′; 8cm B (11x); Carlos Labordena (Castellón, España)
2015 Jan. 23.74 UT: m1=4.5, Dia.=18′, DC=D6, Tail= 1.0 deg. PA: 80 deg.; 10×50 B; Maik Meyer (Limburg, Germany)
2015 Jan. 23.52 UT: m1=4.5, Dia.=17′, DC=6; 10x66R (10x); Seiichi Yoshida (Kanagawa, Japan)
2015 Jan. 23.21 UT: m1=4.0, Dia.=20’, DC=3; naked eye; Carl Hergenrother (Tucson, AZ, USA)
2015 Jan. 23.08 UT: m1=4.0, Dia.=20′, DC=4/; 5-cm B (7x); Salvador Aguirre (Hermosillo, Sonora, Mexico)
2015 Jan. 23.042 UT: m1=4.4, Dia.=16′, DC=5/; 20×50 B; Luis Mansilla (Rosario, Argentina)
2015 Jan. 22.98 UT: m1=4.5, Dia.=20′, DC=6 ; 5×25 B; Valentín Díaz (Elche, Spain) [urban sky]
2015 Jan. 22.96 UT: m1=4.5, Dia.=13′, DC=5; 10×50 B; Alexandre Amorim (Florianopolis, Brazil) [clouds interference]
2015 Jan. 22.958 UT: m1=4.5, Dia.=30′, DC=6; 11.4cm L f/8 (45x); Neil Norman (Ipswich, England) [Comet has dimmed since last observation slightly,but is still an impressive sight in an eyepiece. Condensed more so now with a prominent central point clearly seen. Coma elongated in P.A 80 deg, and some greenish hue noted still in coma]
2015 Jan. 22.84 UT: m1=4.5, Dia.=16′, DC6; 12×50 B; Giuseppe Pappa (Sicily, Italy) [compared with 4.5 star 35 Ari]
2015 Jan. 22.83 UT: m1=4.6, Dia.=30’, DC=8; 10×50 B; J. P. Navarro Pina (El Palmar, Murcia, Spain) [cat. tycho-2 1776-1396-1, 1776-1395-1]
2015 Jan. 22.472 UT: m1=4.7, Dia=-‘, DC=9; Naked eye; Rob Kaufman (Bright, Victoria, Australia) [Starlike appearance at low altitude, 17 degrees]
2015 Jan. 22.44 UT: m1=4.1; Naked eye; David A. J. Seargent (Cowra, NSW, Australia)
2015 Jan. 22.09 UT: m1=4.0, Dia.=22′, DC=5/; 5-cm B (7x); Salvador Aguirre (Hermosillo, Sonora, Mexico)
2015 Jan. 22.06 UT: m1=4.4, Dia.=20′, DC=4/; 10×70 B; Jorge Luis Salas (San Diego, Carabobo, Venezuela) [nubes]
2015 Jan. 22.02 UT: m1=4.3, Dia.=15′, DC=6; 20×50 B; Luis Mansilla (Rosario, Argentina)
2015 Jan. 21.80 UT: m1=4.4, DC=7; naked eye; Alex Scholten (Bussloo, Netherlands)
2015 Jan. 21.78 UT: m1=4.5, Dia.=~18′, DC=6; 8x40B; Alex Scholten (Bussloo, Netherlands)
2015 Jan. 21.76 UT: m1=4.4, Dia.=18′, DC=6; 6cm R (28x); Giuseppe Pappa (Sicily, Italy)
2015 Jan. 21.75 UT: m1=4.5, Dia.=15.0′; naked eye; Uwe Pilz (Leipzig, Germany)
2015 Jan. 21.74 UT: m1=4.5, Dia.=20′, DC=6; Naked eye; Giuseppe Pappa (Sicily, Italy)
2015 Jan. 21.50 UT: m1=4.5, Dia.=18′, DC=5; 11×80 B; Angelito Sing (Makati, Philippines)
2015 Jan. 21.08 UT: m1=4.0, Dia.=22′, DC=5/; 5-cm B (7x); Salvador Aguirre (Hermosillo, Sonora, Mexico)
2015 Jan. 21.04 UT: m1=4.5, Dia.=25′, DC=5/; 10×70 B; Jorge Luis Salas (San Diego, Carabobo, Venezuela) [nubes]
2015 Jan. 20.98 UT: m1=4.4, Dia.=20′, DC=5; 7×50 B; Willian Souza (Sao Paulo, Brazil)
2015 Jan. 20.82 UT: m1=4.1, DC=7/; Naked eye; Maik Meyer (Limburg, Germany)
2015 Jan. 20.81 UT: m1=4.3, Dia.=19, DC=D6/, Tail=1.0 deg. PA: 75 deg.; 10×50 B; Maik Meyer (Limburg, Germany)
2015 Jan. 20.74 UT: m1=4.4, DC=7; naked eye; Alex Scholten (Eerbeek, Netherlands)
2015 Jan. 20.55 UT: m1=4.5, Dia.=20′, DC=5/, Tail=1.8 deg in PA 75 deg; 8×42 B; Katsumi Yoshimoto (Yamaguchi, Japan)
2015 Jan. 20.49 UT: m1=4.2; Naked eye; David A. J. Seargent (Cowra, NSW, Australia) [Slightly hazy sky, but in 10×50 B Tail= >1 degree in PA: 70 degrees]
2015 Jan. 20.49 UT: m1=4.3, Dia.=16′, DC=5; 10x66R (10x); Seiichi Yoshida (Kanagawa, Japan)
2015 Jan. 20.21 UT: m1=3.7, Dia.=23’, DC=6; naked eye; Carl Hergenrother (Tucson, AZ, USA)
2015 Jan. 20.21 UT: m1=4.1, DC=6; naked eye; Man-To Hui (Malibu, USA)
2015 Jan. 20.08 UT: m1=3.9, Dia.=22′, DC=5/; 5-cm B (7x); Salvador Aguirre (Hermosillo, Sonora, Mexico)
2015 Jan. 19.99 UT: m1=4.4, Dia.=20′, DC=5/; 10×70 B; Jorge Luis Salas (San Diego, Carabobo, Venezuela) [nubes]
2015 Jan. 19.96 UT: m1=4.4, Dia.=18′, DC=6; 12×50 B; Giuseppe Pappa (Sicily, Italy)
2015 Jan. 19.934 UT: m1=4.3, Dia.=25′, DC=6, Tail= 3 deg. P.A: 76 deg.; 11.4cm L f/8 (45x); Neil Norman (Ipswich, England) [The comet appears smaller in coma size,but is becoming very condensed with still a green hue seen. The surprise was the length of the faint whispy tail, very pronounced with averted vision]
2015 Jan. 19.854 UT: m1=4.0, Dia.=20′, DC=5; 8×56 B; Rafael Benavides (Posadas, Córdoba, España)
2015 Jan. 19.48 UT: m1=4.4, Dia.=20′, DC=5/, Tail=2.5 deg in PA 80 deg; 8×42 B; Katsumi Yoshimoto (Yamaguchi, Japan)
2015 Jan. 19.47 UT: m1=4.3, Dia.=15′, DC=5; 11×80 B; Angelito Sing (Makati, Philippines)
2015 Jan. 19.45 UT: m1=4.0, Dia.=18′, DC=6; 10x66R (10x); Seiichi Yoshida (Kanagawa, Japan)
2015 Jan. 19.11 UT: m1=3.7, Dia.=25’, DC=6; naked eye; Carl Hergenrother (Tucson, AZ, USA)
2015 Jan. 19.07 UT: m1=3.9, Dia.=22′, DC=5/; 5-cm B (7x); Salvador Aguirre (Hermosillo, Sonora, Mexico)
2015 Jan. 19.04 UT: m1=4.4, Dia.=20, DC=5/; 20×50 B; Luis Mansilla (Arroyo Seco, Argentina)
2015 Jan. 19.02 UT: m1=4.1, Dia.=22’, DC=6; 10×50 B; Alberto Anunziato (Paraná, Argentina)
2015 Jan. 19.01 UT: m1=3.9, Dia.=15′, DC=7; 10×50 B; Mariano Ribas (Buenos Aires, Argentina)
2015 Jan. 18.99 UT: m1=4.4, Dia.=20′, DC=6/; 10×70 B; Jorge Luis Salas (San Diego, Carabobo, Venezuela)
2015 Jan. 18.833 UT: m1=4.3, Dia.=20′, DC=6, Tail= 2 degrees in P.A: 76 degrees; 11.4cm L f/8 (45x); Neil Norman  [Located just at naked eye limit,through a telescope it appears more condensed with a clear tail pointing away at P.A 76 degrees. Although  clearly fading it is still a lovely object]
2015 Jan. 18.83 UT: m1=4.2, Dia.=25.0′; Naked Eye; Uwe Pilz (Leipzig, Germany) [In 16×70 B, DC=7, Tail= 4.8 deg. in PA: 80 deg.]
2015 Jan. 18.74 UT: m1=3.9, Dia.=25’, DC=5; 7×50 B; Sandro Baroni (Milano, Italia)
2015 Jan. 18.74 UT: m1=4.3, DC=6/; Naked eye; Maik Meyer (Limburg, Germany)
2015 Jan. 18.73 UT: m1=4.4, Dia.=24′, DC=D6, Tail= 0.9 deg. in PA: 80 deg.; 10×50 B; Maik Meyer (Limburg, Germany)
2015 Jan. 18.71 UT: m1=4.4, Dia.=20′, DC=5/; naked eye; Martin Lehky (Czech Republic)
2015 Jan. 18.47 UT: m1=4.0, Dia.=20′, DC=5/; 10x66R (10x); Seiichi Yoshida (Kanagawa, Japan)
2015 Jan. 18.46 UT: m1=4.4, Dia.=25’, DC=5/; 7×50 B; Chris Wyatt (Walcha, NSW, Australia) [Faint tail visible, traced to 2° in length in PA 081°; Coma oval in shape oriented West-East, bright pale aqua coloured inner coma, not quite stellar. Visible naked eye but close to bright stars of 4th and 5th magnitude about 1° away to the South-East approximately]
2015 Jan. 18.29 UT: m2=9.2 CCD, Dia.=&35′, Tail>2.0 deg in PA 83 deg; [T20] 0.1-m f/5.0 astrograph + CCD; A. Novichonok & T. Prystavski (iTelescope observatory, H06, remotely from Mayhill, U.S.A.)
2015 Jan. 18.11 UT: m1=4.0, Dia.=20’, DC=5; naked eye; Carl Hergenrother (Tucson, AZ, USA)
2015 Jan. 18.08 UT: m1=4.3, Dia.=20′, DC=5; Naked eye; Phillip J. Creed (Grantsville, WV, USA) [Moderately condensed to the naked-eye. In 15×70 binoculars, 2.2-deg faint tail in PA 080. Surface brightness of tail beyond 1.0 deg lower than that of nearby Merope nebulosity]
2015 Jan. 18.07 UT: m1=3.8, Dia.=21′, DC=5/; 5-cm B (7x); Salvador Aguirre (Hermosillo, Sonora, Mexico)
2015 Jan. 17.99 UT: m1=4.2, Dia.=25′, DC=5/; 10X70 B; Jorge Luis Salas (San Diego, Carabobo, Venezuela) [nubes]
2015 Jan. 17.99 UT: m1=4.3, Dia.=20’, DC=6; 7×50 B; Willian Souza (Sao Paulo, Brazil)
2015 Jan. 17.87 UT: m1=4.0, Dia.=20.0′; Naked Eye; Uwe Pilz (Leipzig, Germany) [In 12.0cm R f/5 (30x), Tail= 1.30 deg. in PA: 76 deg.]
2015 Jan. 17.83 UT: m1=3.9, Dia.=25′, DC=6, Cola= 50′; simple vista; Carlos Labordena (Castellón, España)
2015 Jan. 17.82 UT: m1=4.0, Dia.=26′, DC=8, Cola= 40′; 8cm B (11x); Carlos Labordena (Castellón, España)
2015 Jan. 17.79 UT: m1=4.8, Dia.=30′, DC=6; 10×50 B; J. P. Navarro Pina (El Palmar, Murcia, Spain) [stars comp. Tycho-2 Cat. 1244-1190-1 4.8 , 1228-2019-1 4.4]
2015 Jan. 17.75 UT: m1=4.1, Dia.=22′, DC=6; 11.4cm L f/8 (45x); Neil Norman (Ipswich, England) [Large diffuse halo surrounding a strong central condensation. Green colouration still evident]
2015 Jan. 17.74 UT: m1=4.2, DC=6; Naked eye; Maik Meyer (Limburg, Germany)
2015 Jan. 17.73 UT: m1=4.3, Dia.=26′, DC=D6, Tail= 1.2 deg. in PA: 75 deg.; Maik Meyer (Limburg, Germany)
2015 Jan. 17.50 UT: m1=4.5, Dia.=23’, DC=5/; 7×50 B; Chris Wyatt (Walcha, NSW, Australia) [Faint tail visible, 3.5° in length in PA 076°; Coma oval in shape, oriented West-East approximately, bright inner coma, sometimes appears stellar]
2015 Jan. 17.49 UT: m1=4.0; Naked eye; David A. J. Seargent (Cowra, NSW, Australia) [In 10×50 B, Tail= 3.3 degrees; PA = 80 degrees. Tail appeared a little fainter, but brightest part glimpsed occasionally naked-eye with averted vision]
2015 Jan. 17.49 UT: m1=4.5, Dia.=30’, DC=6; Naked eye; Chris Wyatt (Walcha, NSW, Australia) [Easily located naked eye; Outer coma diffuse, gradually brightens to centre with a small stellar pseudo-nucleus]
2015 Jan. 17.43 UT: m1=4.2, Dia.=24′, DC=6, Tail=2.8 deg in PA 75 deg; 8×42 B; Katsumi Yoshimoto (Yamaguchi, Japan)
2015 Jan. 17.42 UT: m1=3.9, Dia.=23′, DC=5/; 10x66R (10x); Seiichi Yoshida (Kanagawa, Japan)
2015 Jan. 17.08 UT: m1=4.3, Dia.=20’, DC=6; 7×50 B; Willian Souza (Sao Paulo, Brazil)
2015 Jan. 17.052 UT: m1=4.2, Dia.=20′, DC=6; 20×50 B; Luis Mansilla (Rosario, Argentina) [light pollution]
2015 Jan. 17.01 UT: m1=4.0, Dia.=35′, DC=7; Naked eye; Marco Antonio Coelho Goiato (Araçatuba, Brazil)
2015 Jan. 17.00 UT: m1=4.2, Dia.=30′, DC=6, Tail= 2º in PA: 75º; 5-cm B (7X); Marco Antonio Coelho Goiato (Araçatuba, Brazil)
2015 Jan. 16.99 UT: m1=3.9, Dia.=15’, DC=7; Naked eye; Willian Souza (Sao Paulo, Brazil)
2015 Jan. 16.98 UT: m1=4.2, Dia.=20′, DC=6; 7×50 B; Willian Souza (Sao Paulo, Brazil)
2015 Jan. 16.934 UT: m1=4.5, Dia.=20′, DC=6; 5×25 B; Valentín Díaz (La Romaneta, Alicante, España) [Cola= 1.6º en AP=82º con 20×80 B]
2015 Jan. 16.90 UT: m1=4.5, Dia.=25′, DC=6; 10×50 B; J. P. Navarro Pina (El Palmar, Murcia, Spain) [stars comp. 1228-249-4 4.4 , 1244-1190-1 4.8 cat.TK]
2015 Jan. 16.84 UT: m1=4.4, Dia.=18′, DC=7; 7×50 B; Marian Legutko (Gliwice, Poland) [suburban sky, slight hazy; Morris method. ref.: TK]
2015 Jan. 16.833 UT: m1=4.0, Dia.=25′, DC=6; 11.4cm L f/8 (45x); Neil Norman (Ipswich, England)
2015 Jan. 16.76 UT: m1=4.0, DC=6; naked eye; Alex Scholten (Eerbeek, Netherlands)
2015 Jan. 16.73 UT: m1=4.1, Dia.=20′, DC=5/; naked eye; Martin Lehky (Czech Republic)
2015 Jan. 16.55 UT: m1=4.2, Dia.=17′, DC=5; 11×80 B; Angelito Sing (Makati, Philippines)
2015 Jan. 16.48 UT: m1=4.4, Dia.=22’, DC=5; 7×50 B; Chris Wyatt (Walcha, NSW, Australia) [Faint tail visible, 3° in length in PA 081°; Coma oval in shape and oriented West-East, outer coma semi-opaque with slight elongation visible to the North-East approximately. Central condensation not quite stellar]
2015 Jan. 16.479 UT: m1=3.8, Dia.=35′, DC=6, Tail=2 deg.; 11×70 B; Jesús Valero (Ponferrada, León, España)
2015 Jan. 16.47 UT: m1=4.2, Dia.=36’, DC=5/; Naked eye; Chris Wyatt (Walcha, NSW, Australia) [Easy naked eye; Coma appears slightly oval in shape, fuzzy outer coma brightens to a well condensed inner coma, sometimes appears stellar]
2015 Jan. 16.45 UT: m1=3.9, Dia.=30′; Naked eye; David A. J. Seargent (Cowra, NSW, Australia) [In 10×50 B, Tail= 2.6 degrees; PA: 84 degrees]
2015 Jan. 16.09 UT: m1=3.9, Dia.=22′, DC=5/; 5-cm B (7x); Salvador Aguirre (Hermosillo, Sonora, Mexico)
2015 Jan. 16.083 UT: m1=3.8, Dia.=25′, DC=5, Tail= not visible; 7×50 B; Raúl Salvo (Los Molinos, Uruguay) [Comp: 5 Tau y xi Tau]
2015 Jan. 16.07 UT: m1=4.0, Dia.=20′, DC=5/; 10×70 B; Jorge Luis Salas (San Diego, Carabobo, Venezuela) [nubes]
2015 Jan. 16.04 UT: m1=4.1, Dia.=20′, DC=6; 20×50 B; Luis Mansilla (Rosario, Argentina) [light pollution]
2015 Jan. 16.01 UT: m1=3.9, Dia.=28’, DC=7, Tail= no visible; 10×50 B; Alberto Anunziato (Paraná, Argentina)
2015 Jan. 15.972 UT: m1=4.4, Dia.=15′, DC=6, Tail= 0.9 deg. in PA: 80 deg.; 11×80 B; Faustino García (La Vara, Valdés, España)
2015 Jan. 15.93 UT: m1=4.0, DC=7; naked eye; Alex Scholten (Eerbeek, Netherlands)
2015 Jan. 15.93 UT: m1=4.1, Dia.=~25′ DC=6; 8×40 B; Alex Scholten (Eerbeek, Netherlands) [in 15x80B weak tail of about 2.1 degrees in PA 87 degrees]
2015 Jan. 15.82 UT: m1=3.9, Dia.=19′, DC=7; 12×50 B; Giuseppe Pappa (Sicily, Italy)
2015 Jan. 15.82 UT: m1=4.0, Dia.=25′, DC=7; Naked eye; Giuseppe Pappa (Sicily, Italy)
2015 Jan. 15.792 UT: m1=4.0, Dia.=30′, DC=6; 10×50 B; Neil Norman (Ipswich, England) [The comet has faded slightly but is still visible naked eye and a lovely condensed object in binoculars with its green/blue hue within the coma]
2015 Jan. 15.76 UT: m1=4.3, Dia.=30′, DC=6; 10×50 B; J. P. Navarro Pina (El Palmar, Murcia, Spain) [Beyer method used, stars comp.: 5 Tauri ,4 Tauri]
2015 Jan. 15.49 UT: m1=4.2, Dia.=24′, DC=6, Tail=2.6 deg in PA 80 deg; 8×42 B; Katsumi Yoshimoto (Yamaguchi, Japan)
2015 Jan. 15.47 UT: m1=4.4, Dia.=26’, DC=5/6; 7×50 B; Chris Wyatt (Walcha, NSW, Australia) [Faint tail visible, 2.5° in length in PA 080°. Coma appears oval in shape oriented West-East approximately. Coma appears pale-blue at extremities and more whiter in colour towards the centre]
2015 Jan. 15.46 UT: m1=–, Dia.=24′, Tail= 3.6 degrees in PA: 85 degrees; 10×50 B; David A. J. Seargent (Cowra, NSW, Australia) [In 25×100 B, well-defined central condensation, which appeared slightly less pronounced with swan band filter]
2015 Jan. 15.45 UT: m1=4.1, Dia.=16′, DC=6; 11×80 B; Angelito Sing (Makati, Philippines) [still naked eye here]
2015 Jan. 15.45 UT: m1=4.2, Dia.=38’, DC=4; Naked eye; Chris Wyatt (Walcha, NSW, Australia) [Easily visible naked eye, coma round and diffuse with slightly brighter and moderately condensed central condensation]
2015 Jan. 15.44 UT: m1=3.9: Naked eye; David A. J. Seargent (Cowra, NSW, Australia) [Moderately enhanced with Swan Band filter]
2015 Jan. 15.10 UT: m1=4.0, Dia.=25’, DC=5; naked eye; Carl Hergenrother (Tucson, AZ, USA)
2015 Jan. 15.08 UT: m1=3.9, Dia.=22′, DC=5.5; 5-cm B (7x); Salvador Aguirre (Hermosillo, Sonora, Mexico)
2015 Jan. 15.066 UT: m1=4, Dia.=41′, DC=6/, Tail= no visible; 15×70 B; Roberto Condori (OAN MPC820, Tarija, Bolivia) [Alt:41°, clouds]
2015 Jan. 15.036 UT: m1=4.0, Dia.=25′, DC=6/; 20×50 B; Luis Mansilla (Rosario, Argentina) [light pollution and near clouds]
2015 Jan. 15.02 UT: m1=3.8, Dia.=40′, DC=7; Naked eye; Marco Antonio Coelho Goiato (Araçatuba, Brazil) [Clouds]
2015 Jan. 15.01 UT: m1=4.0, Dia.=30′, DC=6; 2.5-cm B (8X); Marco Antonio Coelho Goiato (Araçatuba, Brazil) [Clouds]
2015 Jan. 15.00 UT: m1=4.1, Dia.=30′, DC=6/, Tail= 2º in PA: 75º; 5-cm B (7X); Marco Antonio Coelho Goiato (Araçatuba, Brazil) [Clouds]
2015 Jan. 14.89 UT: m1=4.0, Dia.=20.0′; Naked eye; Uwe Pilz (Leipzig, Germany)
2015 Jan. 14.80 UT: m1=4.0, Dia.=20′, DC=7; 12×50 B; Giuseppe Pappa (Sicily, Italy)
2015 Jan. 14.79 UT: m1=3.9, DC=6/; Naked eye; Maik Meyer (Limburg, Germany)
2015 Jan. 14.78 UT: m1=4.5, Dia.=10.0’, DC=5, Tail=30’; 11.0-cm L (32x); Vyacheslav M. Ivanov (Atamanovka, Russia) [Large, moderately bright and diffuse coma, narrow and faint tail. This comet good seen naked eye!]
2015 Jan. 14.78 UT: m1:4.2, Dia.=21, DC=D6, Tail= 0.8 deg. in PA: 75 deg.; 10×50 B; Maik Meyer (Limburg, Germany)
2015 Jan. 14.78 UT: m1=4.1, Dia.=~25′ DC=6; 8x40B; Alex Scholten (Eerbeek, Netherlands)(in 15x80B weak tail of about 1.3 degrees in PA 80 degrees)
2015 Jan. 14.78 UT: m1=4.1, DC=7, naked eye; Alex Scholten (Eerbeek, Netherlands)
2015 Jan. 14.77 UT: m1=4.2, Dia.=32′, DC=6, 10×50 B; J. P. Navarro Pina (El Palmar, Murcia, Spain) [stars comp.: Xi Tauri , 5 Tauri]
2015 Jan. 14.483 UT: m1=4.0, DC=8; Naked eye; Rob Kaufman (Bright, Victoria, Australia) [Fuzzy starlike appearance in dark skies. Altitude: 37 degrees]
2015 Jan. 14.47 UT: m1=4.1, Dia.= 15′, DC=7; 11×80 B; Angelito Sing (Makati, Philippines)
2015 Jan. 14.45 UT: m1=4.4, Dia.=30’; DC=6; 7×50 B; Chris Wyatt (Walcha, NSW, Australia) [Faint tail visible, 1.6° in length in PA 073° and approximately 15’ in width, no structure apparent visually. Coma appears elongated to ENE approximately, bright stellar central condensation, diffuse opaque inner coma gradually fading to edges. Coma enhances strongly in Swan Band filter.
2015 Jan. 14.44 UT: m1=4.2, Dia.=20’, DC=2/3; Naked eye; Chris Wyatt (Walcha, NSW, Australia) [Easy naked eye object, small round and diffuse with slight brightening to centre, no tail obvious, enhances strongly in Swan Band filter when held to the eye]
2015 Jan. 14.12 UT: m1=3.8, Dia.=22′, DC=6.5; 5-cm B (7x); Salvador Aguirre (Hermosillo, Sonora, Mexico)
2015 Jan. 14.04 UT: m1=3.8, Dia.=45′, DC=7/; Naked eye; Marco Antonio Coelho Goiato (Araçatuba, Brazil)
2015 Jan. 14.03 UT: m1=3.8, Dia.=25′, DC=7, Tail= 1.5º in PA: 80º; 7×50 B; Gonzalo Vargas (Cochabamba, Bolivia)
2015 Jan. 14.03 UT: m1=3.9, Dia.=32′, DC=6; 2.5-cm B (8X); Marco Antonio Coelho Goiato (Araçatuba, Brazil)
2015 Jan. 14.02 UT: m1=4.0, Dia.=32′, DC=6/, Tail= 3º in PA: 70º; 5-cm B (7X); Marco Antonio Coelho Goiato (Araçatuba, Brazil) [Second tail with 1.5º in PA:30º]
2015 Jan. 14.05 UT: m1=3.9, Dia.=15′, DC=6/; 10×50 B; Mariano Ribas (Buenos Aires, Argentina)
2015 Jan. 13.96 UT: m1=4.3, DC=8; naked eye; Alexandre Amorim (Florianopolis, Brazil) [nebulosity]
2015 Jan. 13.87 UT: m1=4.1, Dia.=~25′, DC=6; 8×40 B; Alex Scholten (Eerbeek, Netherlands) (in 15x80B weak tail of about 1.1 degrees in PA 70 degrees)
2015 Jan. 13.87 UT: m1=4.1, DC=7; naked eye; Alex Scholten (Eerbeek, Netherlands)
2015 Jan. 13.87 UT: m1=4.1, Dia.=17′, DC=6; 12×50 B; Giuseppe Pappa (Sicily, Italy)
2015 Jan. 13.857 UT: m1=4.2, Dia.=20′, DC=6, Tail= 1.1 deg. in PA: 95 deg.; 11×80 B; Faustino García (La Vara, Valdés, España)
2015 Jan. 13.84 UT: m1=3.8, Dia.=30′, DC=6; 7×50 B; Michal Kusiak (Zywiec, Poland) [comp. stars: 2-Xi Tauri, 5 Tauri]
2015 Ene. 13.81 UT: m1=4.0, Dia.=22′, DC=5, no cola; OL; Carlos Labordena (Castellón, España)
2015 Ene. 13.80 UT: m1=4.2, Dia.=25′, DC=7, Cola=3º; 8cm B(11x); Carlos Labordena (Castellón, España)
2015 Jan. 13.76 UT: m1=4.0, Dia.=20′, DC=7; naked eye; Giuseppe Pappa (Sicily, Italy)
2015 Jan. 13.74 UT: m1=4.3, Dia.=14′, DC=7; 7×50 B; Marian Legutko (Gliwice, Poland) [suburban sky; Morris method]
2015 Jan. 13.73 UT: m1=3.7, Dia.=22′, DC=7/; naked eye; Marek Biely (Brno, Czech Republic) [Extremely condensed finally by naked eye as well]
2015 Jan. 13.73 UT: m1=3.9, Dia.=25′, DC=6; naked eye; Martin Lehky (Czech Republic)
2015 Jan. 13.72 UT: m1=3.9, Dia.=22′, DC=6, Tail= 1.55 deg. in PA 75 deg.; 20×80 B; Marek Biely (Brno, Czech Republic) [Large green coma and long tail]
2015 Jan. 13.69 UT: m1=4.0, Dia.=32′, DC=6, Tail= 1.5 deg. in PA: 80 deg.; 15×70 B; Danil Sidorko (Korenovsk, Russia) [Comet is visible to the naked eye]
2015 Jan. 13.56 UT: m1=4.2, Dia.=22′, DC=6; 8×42 B; Katsumi Yoshimoto (Yamaguchi, Japan)
2015 Jan. 13.53 UT: m1=3.8, Dia.=22′, DC=6; 6.6cm R (10x); Seiichi Yoshida (Kanagawa, Japan)
2015 Jan. 13.17 UT: m1=4.1, Dia.=25’, DC=4; naked eye; Carl Hergenrother (Tucson, AZ, USA)
2015 Jan. 13.10 UT: m1=3.7, Dia.=23′, DC=6/; 7×50 B; Salvador Aguirre (Hermosillo, Sonora, Mexico)
2015 Jan. 13.01 UT: m1=3.9, Dia.=30′, DC=6; 8×2.5 B; Marco Antonio Coelho Goiato (Araçatuba, Brazil)
2015 Jan. 13.00 UT: m1=3.8, Dia.=40′, DC=7; Naked eye; Marco Antonio Coelho Goiato (Araçatuba, Brazil)
2015 Jan. 12.99 UT: m1=4.0, Dia.=30′, DC=6/; Tail= 2º in PA: 70º; 7×50 B; Marco Antonio Coelho Goiato (Araçatuba, Brazil) [Second tail with 1º in PA:50º]
2015 Jan. 12.99 UT: m1=3.8. Dia.=25′, DC=6/; 10×70 B; Jorge Luis Salas (San Diego, Carabobo, Venezuela)
2015 Jan. 12.98 UT: m1=3.9, Dia.=30′, DC=7; 7×50 B; Willian Souza (Sao Paulo, Brazil)
2015 Jan. 12.87 UT: m1=3.9, DC=7; Naked eye; Maik Meyer (Limburg, Germany)
2015 Jan. 12.86 UT: m1=4.1, Dia.=21′, DC=D6, Tail= 0.9 deg. in PA: 70 deg.; 10×50 B; Maik Meyer (Limburg, Germany)
2015 Jan. 12.79 UT: m1=3.9, Dia.=19′, DC=5; 6cm R (28x); Giuseppe Pappa (Sicily, Italy)
2015 Jan. 12.76 UT: m1=3.7, Dia.=35′, DC=8; 10×50 B; J. P. Navarro Pina (El Palmar, Murcia, Spain) [comet very condensed, stars compared Xi Tauri , 4 Tauri]
2015 Jan. 12.46 UT: m1=4.0, Dia.=21′, DC=6; 6.6cm R (10x); Seiichi Yoshida (Kanagawa, Japan)
2015 Jan. 12.45 UT: m1=3.7; Naked eye; David A. J. Seargent (Cowra, NSW, Australia)
2015 Jan. 12.45 UT: m1=4.0, Dia.=17′, DC=7; 11×80 B; Angelito Sing (Makati, Philippines)
2015 Jan. 12.12 UT: m1=4.0, Dia.=25’, DC=7; 10×50 B; Alberto Anunziato (Paraná, Argentina) [Tail not visible]
2015 Jan. 12.07 UT: m1=4.0, Dia.=20′, DC=6/; 10×70 B; Jorge Luis Salas (San Diego, Carabobo, Venezuela)
2015 Jan. 12.04 UT: m1=3.9, Dia.=20′, DC=7/; Luis Mansilla (Rosario, Argentina) [light pollutions and near clouds]
2015 Jan. 12.00 UT: m1=4.0, Dia.=36′, DC=7; Naked eye; Marco Antonio Coelho Goiato (Araçatuba, Brazil) [Clouds]
2015 Jan. 11.99 UT: m1=4.0, Dia.=30′, DC=6; 8×2.5 B; Marco Antonio Coelho Goiato (Araçatuba, Brazil) [Clouds]
2015 Jan. 11.98 UT: m1=4.1, Dia.=30′, DC=6/, Tail= 2º in PA: 70º; 7×50 B; Marco Antonio Coelho Goiato (Araçatuba, Brazil) [Second tail with 1º in PA:30º, clouds]
2015 Jan. 11.88 UT: m1=3.7, Dia.=30′, DC=8; 10×50 B; J. P. Navarro Pina (El Palmar, Murcia, Spain) [stars compared: nu Tauri 40 Tauri , xi Tauri 6 Tauri]
2015 Jan. 11.837 UT: m1=4.3, Dia.=20′, DC=5, Tail= 0.9 deg. in PA: 70 deg.; 11×80 B; Faustino Gracía (La Vara, Valdés, España)
2015 Jan. 11.813 UT: m1=4.0, Dia.=20′, DC=6; 8×56 B; Rafael Benavides (Posadas, España)
2015 Jan. 11.76 UT: m1=3.8, Dia.=20′, DC=6; 6cm R (28x); Giuseppe Pappa (Sicily, Italy)
2015 Jan. 11.72 UT: m1=4.0, Dia.=22′, DC=6/, Tail= 0.8 deg. in PA: 80 deg.; 20×80 B; Marek Biely (Brno, Czech Republic) [Extremely bright object visible immediately. Also tail is visible well]
2015 Jan. 11.72 UT: m1=4.1, Dia.=23′, DC=1/; Naked eye; Marek Biely (Brno, Czech Republic) [By naked eye it is very diffuse again, but visible with direct vision]
2015 Jan. 11.58 UT: m1=4.0, Dia.=20′, DC=7; 11×80 B; Angelito Sing (Manila, Philippines) [Easy naked eye]
2015 Jan. 11.45 UT: m1=4.3, Dia.=20′, DC=5; 6.6cm R (10x); Seiichi Yoshida (Kanagawa, Japan)
2015 Jan. 11.13 UT: m1=4.2, Dia.=25’, DC=4; naked eye; Carl Hergenrother (Tucson, AZ, USA)
2015 Jan. 11.11 UT: m1=3.9, Dia.=30′, DC=7; 7×50 B; Willian Souza (Sao Paulo, Brazil)
2015 Jan. 11.09 UT: m1=3.8, Dia.=23′, DC=7; 7×50 B; Salvador Aguirre (Hermosillo, Sonora, Mexico)
2015 Jan. 11.055 UT: m1=4.0, Dia.=20′, DC=6, Tail= 0.75 deg. in PA: 90-94 deg.; 8cm R f/4.5 (60x); Gonzalo Vargas (Cochabamba, Bolivia) [visible a simple vista y binocular con mag 4]
2015 Jan. 11.007 UT: m1=4.2, Dia.=20′, DC=5, Tail= not visible; 7×50 B; Raúl Salvo (Los Molinos, Uruguay) [Comp: nu Tau y 10 Tau]
2015 Jan. 10.98 UT: m1=3.9, Dia.=36′, DC=7/; Naked eye; Marco Antonio Coelho Goiato (Araçatuba, Brazil)
2015 Jan. 10.97 UT: m1=4.0, Dia.=30′, DC=6/, Tail= 2º in PA: 70º; 7×50 B; Marco Antonio Coelho Goiato (Araçatuba, Brazil) [Second tail with 1º in PA:40º]
2015 Jan. 10.94 UT: m1=4.0, Dia.=30′, DC=6/; 10×50 B; Willian Souza (Sao Paulo, Brazil)
2015 Jan. 10.89 UT: m1=3.8, Dia.=>15′, DC=7; 15×70 B; Francisco Rodriguez-Bergali (Sevilla, Spain)
2015 Jan. 10.89 UT: m1=3.9; naked eye; Maik Meyer (Limburg, Germany)
2015 Jan. 10.88 UT: m1=4.0, Dia.=20′, DC=D5, Tail= 0.8 deg. in PA: 70 deg.; Maik Meyer (Limburg, Germany)
2015 Jan. 10.85 UT: m1=3.8, Dia.=25′, DC6; naked eye; Giuseppe Pappa (Aci Catena, Sicily, Italy)
2015 Jan. 10.84 UT: m1=4.3, Dia.=26′, DC=6; Naked eye; José J. Chambó (Benali, Valencia, España)
2015 Jan. 10.833 UT: m1=3.7, Dia.=25′, DC=6, Tail= 1 degree in P.A: 67 degrees; 11.4cm L f/8 (45x); Neil Norman (Ipswich, England) [Comet was located easily by naked eye with ease. Through a telescope the coma appeared large and diffuse,condensing inwards to a sharp point of light. Blue/green colour noted in coma also. Beautiful comet !]
2015 Ene. 10.83 UT: m1=3.8, Dia.=22′, DC=5, Cola=50′; OL; Carlos Labordena (Castellón, España)
2015 Ene. 10.83 UT: m1=3.8, Dia.=22′, DC=5, Cola=50′; 8cm B(11x); Carlos Labordena (Castellón, España)
2015 Jan. 10.83 UT: m1=4.7, Dia.=25′, DC=5, Tail= 1.3 deg in PA: 70 deg.; 10×50 B; José J. Chambó (Benali, Valencia, España)
2015 Jan. 10.82 UT: m1=4.2, Dia.=-, DC=7; naked eye; Alex Scholten (Eerbeek, Netherlands)
2015 Ene. 10.82 UT: m1=4.0, Dia.=27′, DC=7, Cola=3º; 8cm B(11x); Carlos Labordena (Castellón, España)
2015 Jan. 10.82 UT: m1=4.1, Dia.=~20′, DC=6; 8×40 B; Alex Scholten (Eerbeek, Netherlands)
2015 Jan. 10.81 UT: m1=3.9, Dia.=30′, DC=6; 10×50 B; Martin Lehky (Czech Republic)
2015 Jan. 10.78 UT: m1=3,9, Dia.=20, DC5/; 6cm R (28x); Giuseppe Pappa (Mascalucia, Sicily, Italy)
2015 Jan. 10.77 UT: m1=3.9, Dia.=25’, DC=3; 7X50 B;, Sandro Baroni (Milano, Italia)
2015 Jan. 10.73 UT: m1=3.9, Dia.=18′, DC=1/; naked eye; Marek Biely (Brno, Czech Republic) [By naked eye it is very diffuse, but not hard to see. Slight interference of low clouds]
2015 Jan. 10.73 UT: m1=4.3, Dia.=21′, DC=7; 3×25 B; Marek Biely (Brno, Czech Republic) [Extremely condensed, very easy to see even in so small tool. Slight interference of low clouds]
2015 Jan. 10.55 UT: m1=4.2, Dia.=17′, DC=7; 11×80 B; Angelito Sing (Makati, Philipines) [comparison stars nu Tauri (3.9) and Miu Tauri (4.3). Faintly visible to the naked eye]
2015 Jan. 10.45 UT: m1=4.0, Dia.=24′, DC=7; 10cm R (70x); Seiichi Yoshida (Ibaraki, Japan)
2015 Jan. 10.42 UT: m1=4.3, Dia.=21′, DC=6; 8×42 B; Katsumi Yoshimoto (Yamaguchi, Japan)
2015 Jan. 10.09 UT: m1=3.8, Dia.=28′, DC=7/; 7×50 B; Salvador Aguirre (Hermosillo, Sonora, Mexico)
2015 Jan. 10.07 UT: m1=4.0, Dia.=25′, DC=6, Tail= 1,5º en PA: 60 deg.; 15×70 B; Mariano Ribas (Zárate, Pcia. de Buenos Aires, Argentina)
2015 Jan. 10.06 UT: m1=4.1; Naked eye; Mariano Ribas (Zárate, Pcia. de Buenos Aires, Argentina)
2015 Jan. 10.059 UT: m1=4.1, Dia.=20′, DC=6/; 20×50 B; Luis Mansilla (Rosario, Argentina) (urban sky)
2015 Jan. 10.01 UT: m1=4.0, Dia.=36′, DC=7; Naked eye; Marco Antonio Coelho Goiato (Araçatuba, Brazil)
2015 Jan. 10.00 UT: m1=4.1, Dia.=30′, DC=6/, Tail: 2.5º in PA: 70º; 7×50 B; Marco Antonio Coelho Goiato (Araçatuba, Brazil) [Second tail with 1º in PA:50º]
2015 Jan. 09.84 UT: m1=4.0, Dia.=20′, DC5; 12×50 B; Giuseppe Pappa (Mascalucia, Sicily, Italy)
2015 Jan. 09.812 UT: m1=4.2, Dia.=22′, DC=4, Tail= 0.65 deg. in PA: 55 deg.; 11×80 B; Faustino García (La Vara, Valdés, España)
2015 Jan. 09.80 UT: m1=4.0, Dia.=35′, DC=9; 10×50 B; J. P. Navarro Pina (Campos del Rio, Murcia, Spain) [Naked Eye, stars compared TYC 79-1585-1 3.8, TYC 79-826-1 5.2]
2015 Jan. 09.56 UT: m1=4.0, Dia.=16′, DC=7; 11×80 B; Angelito Sing (Makati, Philippines)
2015 Ene. 09.137 UT: m1=4.5, Dia.=20′, DC=5, Cola= no visible; 7×50 B; Raúl Salvo (Los Molinos, Uruguay) [Comp: TYC 7614-1952-1 – V:6.06 y TYC 7614-1951-1 – V:5.26 Comp: Epsilon Eridani y 32 Eri]
2015 Jan. 09.09 UT: m1=4.0, Dia.=21′, DC=6/; 7×50 B; Salvador Aguirre (Hermosillo, Sonora, Mexico)
2015 Jan. 09.05 UT: m1=4.0, Dia.=12′, DC=4/; 10×70 B; Jorge Luis Salas (San Diego, Carabobo, Venezuela)
2015 Jan. 09.01 UT: m1=4.0, Dia.=36′, DC=7; Naked eye; Marco Antonio Coelho Goiato (Araçatuba, Brazil)
2015 Jan. 09.00 UT: m1=4.1, Dia.=30′, DC=6/, Tail= 3º in PA: 70º; 7×50 B; Marco Antonio Coelho Goiato (Araçatuba, Brazil) [Second tail with 1º in PA:60º]
2015 Jan. 08.99 UT: m1=4.1, Dia.=30′, DC=6; 7×50 B; Willian Souza (Sao Paulo, Brazil)
2015 Jan. 08.878 UT: m1=4.4, Dia.=12′, DC=6; 8×56 B; Rafael Benavides (España)
2015 Jan. 08.86 UT: m1=4.0, Dia.=15′, DC=7; 15×70 B; Francisco Rodríguez-Bergali (Sevilla, Spain) [Cola no visible]
2015 Jan. 08.85 UT: m1=4.5; Naked eye; José J. Chambó (Vallés, Valencia, España)
2015 Jan. 08.84 UT: m1=4.7, Dia.=18′, DC=5; 10×50 B; José J. Chambó (Vallés, Valencia, España)
2015 Jan. 08.83 UT: m1=4.1, Dia.=22′, DC5; naked eye; Giuseppe Pappa (Mascalucia, Sicily, Italy)
2015 Jan. 08.81 UT: m1=4.0, Dia.=25′, DC=6; 15×70 B; Danil Sidorko (Korenovsk, Russia)
2015 Jan. 08.792 UT: m1=4.5, Dia.=20′, DC=5, Tail= 1 degree in P.A: 64 deg.; 11.4cm L f/8 (45x); Neil Norman (Ipswich, England) [The comet appears large and diffuse. Outer coma condenses inward to a point, but not stellar-like as of the observation I made on the 6th. My opinion is the comet appears less condensed than before]
2015 Jan. 08.78 UT: m1=4.2, Dia.=~20’, DC=6; 8×40 B; Alex Scholten (Eerbeek, Netherlands)
2015 Jan. 08.78 UT: m1=4.4, Dia.=-, DC=7; naked eye; Alex Scholten (Eerbeek, Netherlands)
2015 Jan. 08.47 UT: m1=4.2, Dia.=-‘, DC=7; naked eye; Katsumi Yoshimoto (Yamaguchi, Japan)
2015 Jan. 08.45 UT: m1=4.3, Dia.=27’, DC=5; 7×50 B; Chris Wyatt (Walcha, NSW, Australia) [Outer coma diffuse and transparent, aqua-blue in colour. Inner coma not stellar but more disc-like, bright and whiter in colour. Faint tail visible, 1.8° in length in PA 068°. A short, bright, narrow streak in the tail is visible near the neck. Moonrise]
2015 Jan. 08.45 UT: m1=4.1, Dia.=39’, DC=5/; naked eye; Chris Wyatt (Walcha, NSW, Australia) [Easily visible to the naked eye as a well condensed patch of light, almost stellar and blue-green in colour. A faint tail is traceable for nearly 1 degree from the coma in an ENE direction approximately. Moonrise]
2015 Jan. 08.386 UT: m1=4.2, Dia.=18′, DC=6; 11×70 B; Jesús Valero (Ponferrada, León, España)
2015 Jan. 08.12 UT: m1=4.1, Dia.=15′, DC=5/; 10×50 B; Mariano Ribas (Buenos Aires, Argentina) [Fuerte interferencia lunar. Contaminación lumínica urbana. Nubosidad variable. Poca transparencia atmosférica. NELM: 4.2]
2015 Jan. 08.02 UT: m1=4.2, Dia.=22′, DC=6; 20×50 B; Luis Mansilla (Rosario, Argentina) [En el crepúsculo. Luna debajo del horizonte]
2015 Jan. 07.99 UT: m1=4.2, Dia.=11′, DC=5/, Cola= No visible; 11.4cm L f/7.9 (32x); Jorge Luis Salas (San Diego, Carabobo, Venezuela) [coma extensa y difusa de condensación uniforme]
2015 Jan. 07.92 UT: m1=4.0, Dia.=10′, DC=7; 15×70 B; Francisco Rodríguez-Bergali (Sevilla, Spain) Cola no visible]
2015 Jan. 07.79 UT: m1=4.0, Dia.=20′, DC6; naked eye; Giuseppe Pappa (Sicily, Italy)
2015 Jan. 07.79 UT: m2=9.4 CCD, Dia.=&36′, Tail>1.1 deg in PA 64 deg; [T16] 0.15-m f/7.3 refractor + CCD; A. Novichonok & T. Prystavski (AstroCamp Observatory, I89, remotely from Nerpio, Spain)
2015 Jan. 07.77 UT: m1=4.2, Dia.=17′, DC6; 12×50 B; Giuseppe Pappa Sicily, Italy)
2015 Jan. 07.74 UT: m1=4.0, Dia.=20.0′, DC=3, Tail= 0.13 deg PA:230 deg.; 8×24 B; Uwe Pilz (Leipzig, Germany)
2015 Jan. 07.45 UT: m1=4.2, Dia.=16′, DC=6; 11×80 B; Angelito Sing (Makati, Philippines)
2015 Jan. 07.42 UT: m1=4.3, Dia.=23’, DC=5; 7×50 B; Chris Wyatt (Walcha, NSW, Australia) [Moonlight, Twilight; Inner coma not as condensed, appears aqua-blue in colour, weak at the edges but more intense at the centre. Faint tail visible 1.2° in length in PA: 065°]
2015 Jan. 07.12 UT: m1=4.2, Dia.=30′, DC=6, Tail= 1º in PA: 55º; 7×50 B; Marco Antonio Coelho Goiato (Araçatuba, Brazil) [Visible with naked eye; second tail with 1º in PA: 115º, moonlight]
2015 Jan. 07.09 UT: m1=4.1, Dia.=&20′, DC=6/; 7×50 B; Salvador Aguirre (Hermosillo, Sonora, Mexico)
2015 Jan. 07.06 UT: m1=4.2, Dia.=25′, DC=6; 10×50 B; Willian Souza (Sao Paulo, Brazil)
2015 Jan. 06.99 UT: m1=5.0, Dia.=10′, DC=4; 11×80 B; Faustino García (La Vara, Valdés, España)
2015 Jan. 06.98 UT: m1=4.2, DC=8; naked eye; Alexandre Amorim (Florianopolis, Brazil) [moonlight]
2015 Jan. 06.98 UT: m1=4.2; naked eye; Margarete J. Amorim (Florianopolis, Brazil) [moonlight]
2015 Jan. 06.96 UT: m1=4.3; naked eye; Martha B. de Lima (Florianopolis, Brazil) [moonlight]
2015 Jan. 06.85 UT: m1=4.2, Dia.=17′, DC=5; 7×50 B; Mieczyslaw Leszek Paradowski (Lublin, Poland) [Moonlight, NELM=4, clear sky, temperature minus 12 C; cat. TK]
2015 Jan. 06.83 UT: m1=4.3 CCD, Dia.=16′, DC6; 300mm lens ccd camera ; Giuseppe Pappa (Sicily, Italy)
2015 Jan. 06.80 UT: m1=4.2 Dia.=20′, DC6; naked eye; Giuseppe Pappa (Sicily, Italy)
2015 Jan. 06.78 UT: m1=4.3, Dia.=16′, DC6; 12×50 B; Giuseppe Pappa (Sicily, Italy)
2015 Jan. 06.78 UT: m1=4.3 CCD, Dia.=20′, DC6; 50mm lens ccd camera; Giuseppe Pappa (Sicily, Italy)
2015 Jan. 06.75 UT: m1=4.3, Dia.=16′, DC=6/, Tail= 0.20 deg. P.A: 55°; 11.4cm L (45x); Neil Norman (Ipswich, England) [The comet has improved greatly since my last observation on New Years Eve,with a much stronger DC. Comet easily naked eye at 18.00 UT and could even still make it out at 19.10 UT with the Moon 15 deg “up” with averted vision. Coma large and diffuse condensing evenly to a stellar like point. Before the Moon rose green colouration was evident in 10×50 binoculars. Very impressive object.]
2015 Jan. 06.73 UT: m1=4.4:, Dia.=&15′, DC=2, naked eye; Marek Biely (Brno, Czech Republic) [Visible also by naked eye, but only as an extremely faint object with averted vision. Slight interference of moonlight – almost full Moon was only few degrees above the horizon. Limit observation]
2015 Jan. 06.72 UT: m1=4.6, Dia.=15′, DC=6, Tail= 0.25 deg. in PA: 35 deg.; 20×80 B; Marek Biely (Brno, Czech Republic) [I had to observe early due to coming clouds. Comet is much brighter and much more condensed than last time. Short tail is visible well, sometimes I had the feeling that also second tail is visible. Slight interference of moonlight – almost full Moon was only few degrees above the horizon.]
2015 Jan. 06.71 UT: m1=4.4, Dia.=15′, DC=6; 25×100 B; Martin Lehky (Czech Republic)
2015 Jan. 06.479 UT: m1=4.4, Dia.=13’, DC=4; 10×50 B; Rob Kaufman (Bright, Victoria, Australia] [Coma brightens towards ill-defined central condensation. No tail visible. Altitude 57 degrees, strong moonlight, some cloud. Faintly visible naked-eye in averted vision as a small low-contrast pale patch. Method = M]
2015 Jan. 06.45 UT: m1=4.3, Dia.=16’, DC=5/; 10×50 R; Chris Wyatt (Walcha, NSW, Australia) [Moonlight; Coma appears elongated to the East approximately, hint of tail. Faint outer coma brightening to a well condensed centre, appears stellar sometimes. Aqua-blue in colour, more strongly coloured at centre. Visible naked eye; appears as a round smudge slightly brighter than washed out background sky]
2015 Jan. 06.44 UT: m1=4.4, Dia.= 20′, DC=6; 11×80 B; Angelito Sing (Makati, Philippines)
2015 Jan. 06.12 UT: m1=4.3, Dia.=&15′, DC=6/; 7×50 B; Salvador Aguirre (Hermosillo, Sonora, Mexico)
2015 Jan. 06.07 UT: m1=4.5, Dia.=16’, DC=3; naked eye; Carl Hergenrother (Tucson, AZ, USA)
2015 Jan. 06.05 UT: m1=4.8, Dia.=12′, DC=5/; 10×70 B; Jorge Luis Salas (San Diego, Carabobo, Venezuela) [fuerte interferencia lunar]
2015 Jan. 06.02 UT: m1=4.2, Dia.=-, DC=-; Naked eye; Mariano Ribas (Buenos Aires, Argentina) [Por primera vez pude observar el cometa a simple vista en el cielo de Buenos Aires, pero sólo utilizando “visión avertida” y por momentos. Interferencia lunar. NELM: 4.4]
2015 Jan. 06.01 UT: m1=4.2, Dia.=15′, DC=6, Cola: marginalmente visible; 10×50 B; Mariano Ribas (Buenos Aires, Argentina) [Observación realizada inmediatamente al comienzo de la noche, con la Luna a pocos grados sobre el horizonte, para reducir al máximo su interferencia luminosa. La cola es apenas perceptible utilizando visión avertida en el campo visual del binocular. Contaminación lumínica urbana. NELM: 4.4]
2015 Jan. 05.85 UT: m1=4.5, Dia.=25′, DC=8; 10×50 B; J. P. Navarro Pina (Sangonera la Verde, Murcia, Spain) [Full Moon distance 76º deg.]
2015 Jan. 05.73 UT: m1=4.5, Dia.=12′, DC=5; 10×50 B; Maik Meyer (Limburg, Germany)
2015 Jan. 05.56 UT: m1=4.8, Dia.=15′, DC=6; 11×80 B; Angelito Sing (Makati, Philippines) [bright moonlight. Creo que puedo ver la cola pero con la Luna presente quizas sea mi imaginacion]
2015 Jan. 05.12 UT: m1=4.2, Dia.=18′, DC=5/; 7×50 B; Marco Antonio Coelho Goiato (Araçatuba, Brazil) [full moon – 100 %, 45 degress far from the comet, clouds]
2015 Jan. 05.12 UT: m1=4.4, Dia.=&15′, DC=5/; 7×50 B; Salvador Aguirre (Hermosillo, Sonora, Mexico)
2015 Jan. 05.04 UT: m1=4.6, Dia.=13′, DC=4; 10×50 B; Alexandre Amorim (Florianopolis, Brazil) [monnlight]
2015 Jan. 04.97 UT: m1=4.5, Dia.=8′, DC=6; 15×70 B; Francisco Rodríguez-Bergali (Sevilla, Spain) [Cola no visible, observación dudosa por gran interferencia de la luz de la Luna]
2015 Jan. 04.84 UT: m1=4.3, Dia.=30′, DC=8; 10×50 B; J. P. Navarro Pina (El Palmar, Murcia, Spain) [Interference of Moonlight Full Moon distance 60º deg.]
2015 Jan. 04.80 UT: m1=4.3, Dia.=7’, DC=3; 20×80 B; Sandro Baroni (Milano , Italia) [moonlight]
2015 Jan. 04.53 UT: m1=5.0, Dia.=15′, DC=5; 11×80 B; Angelito Sing (Makati, Philippines) [Uneven haze in the sky and full moon]
2015 Jan. 04.12 UT: m1=4.4, Dia.=&15′, DC=5/; 7×50 B; Salvador Aguirre (Hermosillo, Sonora, Mexico)
2015 Jan. 04.05 UT: m1=4.5, Dia.=12′, DC=5/, Cola: no visible; 10×50 B; Mariano Ribas (Buenos Aires, Argentina) [Fuerte interferencia lunar. Contaminación lumínica urbana. NELM: 4.4]
2015 Jan. 03.99 UT: m1=4.2, Dia.=25′, DC=6; 10×50 B; J. P. Navarro Pina (El Palmar, Murcia, Spain) [Interference of Moonlight distance 72º deg.]
2015 Jan. 03.94 UT: m1=4.5, Dia.=~13′, DC=4; 10×50 B; Alex Scholten (Eerbeek, Netherlands) (bright moonlight)
2015 Ene. 03.88 UT: m1=4.7, Dia.=13′, DC=6, no cola; 8cm B(11x); Carlos Labordena (Castellón, España)
2015 Jan. 03.79 UT: m1=4.5, Dia.=20′, DC5; Naked eye ; Giuseppe Pappa (Sicily, Italy)
2015 Jan. 03.79 UT: m1=4.8 CCD, Dia.=15′, DC5; 300mm lens ccd camera; Giuseppe Pappa (Sicily, Italy)
2015 Jan. 03.53 UT: m1=4.8, Dia.=20′, DC=6; 11×80 B; Angelito Sing (Makati, Philippines) [Comet very bright in spite of the moonlight]
2015 Jan. 03.43 UT: m1=4.5:, Dia.=20′, DC=4/; 20×80 B; Paul Camilleri (Warners Bay, NSW, Australia)
2015 Jan. 03.13 UT: m1=4.4, Dia.=20′, DC=5/; 7×50 B; Salvador Aguirre (Hermosillo, Sonora, Mexico)
2015 Jan. 03.12 UT: m1=4.4, Dia.=15′, DC=6; 20×50 B; Luis Mansilla (Rosario, Argentina) [bright moonlight]
2015 Jan. 02.97 UT: m1=4.3, Dia.=8′, DC=6; 15×70 B; Francisco Rodríguez-Bergali (Sevilla, Spain) [Tail not visible]
2015 Jan. 02.87 UT: m1=5.0:, Dia.=&13′, DC=4, 20×80 B; Marek Biely (Brno, Czech Republic) [Strong interference of low clouds and moonlight]
2015 Jan. 02.83 UT: m1=4.6 , Dia.=18′, DC5; 12×50 B; Giuseppe Pappa (Sicily, Italy)
2015 Jan. 02.83 UT: m1=4.9 CCD, Dia.=16′, DC5; 300mm lens ccd camera ; Giuseppe Pappa (Sicily, Italy)
2015 Jan. 02.82 UT: m1=4.3, Dia.=30′, DC=8; 10×50 B; J. P. Navarro Pina (San José de la Montaña, Murcia, Spain) [Visual magnitude correction applied of Moonlight]
2015 Jan. 02.58 UT: m1=5.2, Dia.=15′, DC=6; 11×80 B; Angelito Sing (Makati, Philippines) [Bright moon]
2015 Jan. 02.15 UT: m1=4.5, Dia.=20′, DC=5/; 7×50; Salvador Aguirre (Hermosillo, Sonora, Mexico)
2015 Jan. 02.14 UT: m1=4.4, Dia.=30′, DC=4; Naked eye; Marco Antonio Coelho Goiato (Araçatuba, Brazil) [ moonlight ]
2015 Jan. 02.10 UT: m1=4.5, Dia.=20′, DC=5/; 7×50 B; Marco Antonio Coelho Goiato (Araçatuba, Brazil) [moonlight]
2015 Jan. 02.09 UT: m1=4.5, Dia.=20′, DC=6; 20×50 B; Luis Mansilla (Rosario, Argentina) [bright moonlight]
2015 Jan. 02.04 UT: m1=4.7, Dia.=12′, DC=5/; 10×50 B; Mariano Ribas (Buenos Aires, Argentina) [Fuerte interferencia lunar que afecta el tamaño aparente de la coma. Aún así, se aprecia visualmente la tonalidad ligeramente verdosa. La cola parecería insinuarse, pero con extrema dificultad. El cometa no se ve aún a simple vista en Buenos Aires. Cielo urbano: NELM 4.4. Método In-Out]
2015 Jan. 01.98 UT: m1=4.8, Dia.=15′, DC=4; 10×50 B; Alexandre Amorim (Florianopolis, Brazil) [clouds interference and monnlight]
2015 Jan. 01.94 UT: m1=4.4, Dia.=10′, DC=6; 15×70 B; Francisco Rodríguez-Bergali (Sevilla, Spain) [Tail not visible]
2015 Jan. 01.85 UT: m1=4.8, Dia.=21.5′, DC=6; 15×70 B; Danil Sidorko (Korenovsk, Russia)
2015 Jan. 01.649 UT: m1=4.7, Dia.=–, DC=–; Naked eye; Rob Kaufman (Bright, Victoria, Australia] [Starlike appearance in bright moonlight. Altitude 45 degrees]
2015 Jan. 01.646 UT: m1=4.9, Dia.=12.0’, DC=4; 10×50 B; Rob Kaufman (Bright, Victoria, Australia) [Coma brightens towards ill-defined central condensation. No tail visible. Altitude 46 degrees, strong moonlight; Method = M]
2015 Jan. 01.25 UT: m1=4.5, Dia.=22′, DC=6, Tail= 2º in PA: 40º; 7×50 B; Marco Antonio Coelho Goiato (Araçatuba, Brazil)
2015 Jan. 01.04 UT: m1=4.7, Dia.=20′, DC=6; 20×50 B; Luis Mansilla (Arroyo Seco, Argentina) [bright moonlight]
2015 Jan. 01.00 UT: m1=4.5, Dia.=20′, DC=5/; 7×50 B; Marco Antonio Coelho Goiato (Araçatuba, Brazil) [moonlight]

C/2014 Q1 (PANSTARRS) ( observaciones)
2015 Oct. 03.41 UT: m1=12.9, Dia.=1’, DC=1/2; 25-cm L f:5 (83x); Chris Wyatt (Walcha, NSW, Australia) [Coma very diffuse, very weakly condensed. No tail. Low altitude = 17.4°]
2015 Sep. 22.39 UT: m1=12.1, Dia.=0.9’, DC=2; 25-cm L f:5 (83x); Chris Wyatt (Walcha, NSW, Australia) [Moonlight; No tail visible, coma very diffuse and weakly condensed]
2015 Sep. 02.93 UT: m1=10.7, Dia.=2′, DC=3/; 22-cm L (60x); Marco Antonio Coelho Goiato (Araçatuba, Brazil)
2015 Aug. 20.93 UT: m1=9.5, Dia.=3′, DC=3; 22-cm L (60x); Marco Antonio Coelho Goiato (Araçatuba, Brazil)
2015 Aug. 18.35 UT: m1=9.3, Dia.=2.4’, DC=5/; 25-cm L f:5 (39x); Chris Wyatt (Walcha, NSW, Australia) [Moonlight and Twilight; Tails faintly visible, Type II is 17’ in length in P.A. 130°; Type III tail is 16’ in length in P.A. 020°. Inner coma appears as an elongated diffuse patch, opaque and pale blue in colour, is about 2.5’ in width with centreline in P.A. 106°. Central condensation sometimes stellar in good seeing]
2015 Aug. 18.35 UT: m2=12.4 CCD, Dia.=&5.1′, Tails=&22′ in PA: 357 deg.; &25′ in PA: 111 deg.; [T31] 0.50-m f/6.8 astrograph + CCD + focal reducer; A. Novichonok & T. Prystavski (iTelescope observatory, Q62 remotely from Siding Spring, Australia)
2015 Aug. 15.93 UT: m1=8.9, Dia.=3′, DC=3; 20×100 B; Marco Antonio Coelho Goiato (Araçatuba, Brazil)
2015 Aug. 15.92 UT: m1=8.9, Dia.=3′, DC=3; 10-cm R f/5 (27x); Willian Souza (Campinas, Brazil)
2015 Aug. 13.93 UT: m1=8.8, Dia.=3′, DC=3/; 20×100 B; Marco Antonio Coelho Goiato (Araçatuba, Brazil)
2015 Aug. 11.93 UT: m1=8.6, Dia.=3′, DC=3/; 20×100 B; Marco Antonio Coelho Goiato (Araçatuba, Brazil)
2015 Aug. 09.93 UT: m1=8.4, Dia.=4′, DC=3/; 20×100 B; Marco Antonio Coelho Goiato (Araçatuba, Brazil)
2015 Aug. 07.93 UT: m1=8.3, Dia.=4′, DC=3/; 20×100 B; Marco Antonio Coelho Goiato (Araçatuba, Brazil)
2015 Aug. 07.35 UT: m1=8.5, Dia.=2.3’, DC=5/; 25cm L f:5 (39x); Chris Wyatt (Walcha, NSW, Australia) [Type II tail visible 50’ in length in P.A. 126°, Inner coma bright, opaque, pale-aqua blue in colour and fanned with centre line position angle at 113° and approximately 5’ in length and 3.5’ in width at its extremity, enhances in Swan Band filter. The Type II tail extends beyond the fan-shaped extension but fades rapidly and is transparent out to its extremity. The Type III tail is slightly curved with convex side to the NW, it traces to 57’ in length in P.A. 033°. A broad semi-transparent patch in the tail is visible 17’ in length and 4.5’ in width approximately at its widest point 8.5’ from coma centre and tapers back into the line of the tail where the tail fades and fans out to full transparency at its extremity]
2015 Aug. 06.93 UT: m1=8.2, Dia.=4′, DC=3/; 20×100 B; Marco Antonio Coelho Goiato (Araçatuba, Brazil)
2015 Aug. 04.92 UT: m1=7.9, Dia.=3′, DC=3/; 20×100 B; Marco Antonio Coelho Goiato (Araçatuba, Brazil)
2015 Aug. 02.92 UT: m1=7.9, Dia.=4′, DC=4; 20×100 B; Marco Antonio Coelho Goiato (Araçatuba, Brazil)
2015 Aug. 02.36 UT: m1=7.3, Dia.=6.5’, DC=5; 7×50 B; Chris Wyatt (Walcha, NSW, Australia) [Type II Dust tail visible, 27.5’ in length in P.A. 118°; Type II dust tail visible, 49.5’ in length in P.A. 034°. Type III dust tail more noticeable than the other tail in brightness. Coma does not appear to enhance in Swan Band filter.
2015 Aug. 02.35 UT: m1=7.8, Dia.=2.0’, DC=6; 25-cm L f:5 (39x); Chris Wyatt (Walcha, NSW, Australia) [Outer coma diffuse, central condensation small, stellar and pale aqua-blue in colour. Inner coma opaque and fans out in direction of the Type III dust tail, tapering off in brightness approximately 6’ from coma centre. Type II dust tail visible 51’ in length in P.A. 118°, 12’ width at extremity; Type III dust tail more prominent than the Type II tail and traces out to 42’ in length in P.A. 027°, 9.7’ width at extremity. Inner coma and central condensation enhance in Swan Band filter]
2015 Aug. 01.92 UT: m1=7.5, Dia.=4′, DC=3; 7×50 B; Marco Antonio Coelho Goiato (Araçatuba, Brazil)
2015 Aug. 01.35 UT: m1=7.8, Dia.=1.6’, DC=6; 25-cm L f:5 (39x); Chris Wyatt (Walcha, NSW, Australia) [Outer coma diffuse and transparent; inner coma opaque, aqua-blue in colour, fan-shaped extension to about 4’ from the faintly stellar central condensation in the direction of the Type II tail. Two dust tails visible, the Type II or Eastward directed tail traces to 32’ in length in P.A. 118° and fans out to around 10’ in width at its extremity. The Type III dust tail is faintly visible to around 8.2’ in P.A. 027°. Inner coma enhances in Swan Band filter. Twilight and slight interference by the rising Moon]
2015 July 31.35 UT: m1=7.7, Dia.=2.3’, DC=5/; 25-cm L f:5 (39x); Chris Wyatt (Walcha, NSW, Australia) [Bright moonlight, Slight twilight interference, Altitude = 20.6°; Ion tail faintly traceable to 18.5’ in length in P.A. 115°; Outer coma very faint and washed out in background sky, Inner coma fanned in direction of ion tail, opaque, aqua-blue in colour and enhances in Swan Band filter]
2015 July 30.92 UT: m1=7.2, Dia.=4′, DC=4; 20×100 B; Marco Antonio Coelho Goiato (Araçatuba, Brazil) [Moonlight
2015 July 29.35 UT: m1=7.6, Dia.=2.7’, DC=5/; 25-cm L f:5 (39x); Chris Wyatt (Walcha, NSW, Australia) [Moonlight, Twilight, Altitude = 18.8°; Faint Ion tail visible 30’ in length in P.A. 115°; Dust tail visible 10.5’ in length in P.A. 033°. Swan Band filter enhances inner coma, inner coma opaque and elongated in the direction of the ion tail. Central condensation small and sometimes stellar in good seeing]
2015 July 28.91 UT: m1=6.5:, Dia.=5′, DC=4; 7-cm R (15x); Alexandre Amorim (Florianopolis, Brazil) [alitude 18 deg, moonlight]
2015 July 27.91 UT: m1=6.5:, Dia.=3′, DC=4; 10×50 B; Willian Souza (Sao Paulo, Brazil)
2015 July 27.36 UT: m1=6.7, Dia.=6.2’, DC=5; 11×70 B; Chris Wyatt (Walcha, NSW, Australia) [Moonlight, Twilight, low altitude = 14.8°; Ion tail visible 28’ in length in P.A. 120°; Faint dust tail visible 20’ in length in P.A. 028°. Coma diffuse, central condensation moderately condensed. Swan Band enhances central condensation only, appears disc-like, almost stellar]
2015 July 26.93 UT: m1=6.1, Dia.=6′, DC=4; 7×50 B; Marco Antonio Coelho Goiato (Araçatuba, Brazil) [Comet altitude: 14º, moonlight, comparison star at the same altitude of the comet]
2015 July 26.92 UT: m1=6.3, Dia.=5′, DC=4/; 20×100 B; Marco Antonio Coelho Goiato (Araçatuba, Brazil) [Comet altitude: 17º, nautical twilight, moonlight, comparison star at the same altitude of the comet]
2015 July 26.91 UT: m1=6.0:, DC=4; 10×50 B; Alexandre Amorim (Florianopolis, Brazil) [alitude 17 deg, moonlight]
2015 July 26.90 UT: m1=6.2, Dia.=3′, DC=4; 15×70 B; Willian Souza (Sao Paulo, Brazil)
2015 July 26.34 UT: m1=6.9, Dia.=1.6’, DC=6; 25-cm L f:5 (39x); Chris Wyatt (Walcha, NSW, Australia) [Moonlight, Twilight, Altitude = 19.0°; Ion tail visible 30.5’ in length in P.A. 115°;Inner coma and central condensation enhances in Swan Band filter; Observation interrupted by cloud]
2015 July 25.92 UT: m1=5.7, Dia.=6′, DC=4; 7×50 B; Marco Antonio Coelho Goiato (Araçatuba, Brazil) [Comet altitude: 16º, nautical twilight, moonlight, atmospheric extinction applied]
2015 July 25.90 UT: m1=5.8*, Dia.=5′, DC=4; 10×50 B; Alexandre Amorim (Florianopolis, Brazil) [alitude 18 deg, moonlight]
2015 July 23.36 UT: m1=5.8, Tail=2 deg., Tail=1 deg.; 15×80 B; David A. J. Seargent (Cowra, NSW, Australia)
2015 July 21.90 UT: m1=5.3, Dia.=4’, DC=2, Cola: no visible; 10×50 B; Alberto Anunziato (Paraná, Argentina)
2015 July 21.90 UT: m1=5.5*, Dia.=3′, DC=6/; 10×50 B; Alexandre Amorim (Florianopolis, Brazil) [altitude 14 deg, tail= 0.3 deg in PA 130 using 180mm L 45x]
2015 July 21.35 UT: m1=5.6, Dia.=3.5’, DC=6; 11×70 B; Chris Wyatt (Walcha, NSW, Australia) [Moonlight, Twilight, low altitude = 10.8°; Ion tail visible 1.7° in length in P.A. 120°; Broad dust tail visible 21’ in length in P.A. 036°. Central condensation enhances strongly in Swan Band filter, outer coma does not; Transparent outer coma with small stellar central condensation, white in colour]
2015 July 20.89 UT: m1=5.5, Dia.=3′, DC=6/; 10×50 B; Willian Souza (Sao Paulo, Brazil)
2015 July 20.35 UT: m1=5.4, Tail=2.5 deg; PA: 100 deg., Tail=0.4 deg. PA: 25 deg.; 25×100 B; David A. J. Seargent (Cowra, NSW, Australia) [Comet also visible in 2.5 x 25 opera glass]
2015 July 20.34 UT: m1=5.4, Dia.=7’, DC=6; 11×70 B; Chris Wyatt (Walcha, NSW, Australia) [Moonlight, Twilight, low altitude = 10.1°; Ion tail visible 2.3° in length in P.A. 117°; Dust tail visible 16’ in length in P.A. 036°, superimposed over bright star of magnitude 5.2, 12’ away in P.A. 038°. Ion tail fans out to approximately 16’ in width at its extremity. Coma enhances strongly in Swan Band filter; transparent outer coma with small stellar central condensation. Through 25cm L @ x39 the coma appears aqua-blue in colour. Observation session ended by cloud interference]
2015 July 19.89 UT: m1=5.2, Dia.=3′, DC=7, Tail= 0.5 deg. in PA: 110 deg.; 15×70 B; Willian Souza (Sao Paulo, Brazil)
2015 July 19.363 UT: m1=5.4, Dia.=2’, DC=6; 10×50 B; Rob Kaufman (Bright, Victoria, Australia) [Fairly condensed; 2 deg of ion tail visible in about PA: 100; faint, short, wide dust tail visible in about PA: 30. 3-day-old waxing crescent Moon; twilight; comet altitude 7 degrees]
2015 July 19.33 UT: m1=5.3, Dia.=2.0′, DC=7, Tail=2.0 deg. PA: 104 deg., Tail=0.3 deg. PA: 30 deg.; 25×100 B; David A. J. Seargent (Cowra, NSW, Australia)
2015 July 18.353 UT: m1=5.2, Dia.=2’, DC=7; 10×50 B; Rob Kaufman (Bright, Victoria, Australia) [Condensed; 1.3 deg of ion tail visible in PA: 110; faint, short, wide dust tail visible in PA: 50. 2-day-old waxing crescent Moon less than 3-deg away; twilight; comet altitude 6 degrees]
2015 July 17.90 UT: m1=5.0, Dia.=3′, DC=7/, Tail=0.5 deg in PA: 110 deg.; 10×50 B; Alexandre Amorim (Florianopolis, Brazil) [nebulosity interference]
2015 July 17.89 UT: m1=5.2, Dia.=3′, DC=7; 10×50 B; Willian Souza (Sao Paulo, Brazil) [fan shaped tail detected with averted vision, comet altitude ~8/9 deg.]
2015 July 17.35 UT: m1=5.2, Dia.=0.6′, DC=8, Tail=1.3 deg. PA: 90 deg., Tail=0.3 deg. PA: 20 deg.; 25×100 B; David A. J. Seargent (Cowra, NSW, Australia)
2015 Jan. 08.43 UT: m1=15.5: CCD, Dia.=&0.3′, Tail=&0.3′ in PA 95 deg; [T31] 0.50-m f/4.4 astrograph + CCD; A. Novichonok & T. Prystavski iTelescope observatory, Q62, remotely from Siding Spring, Australia) [in the evening twilight]

C/2014 OE4 (PANSTARRS) (1 observación)
2015 Apr. 22.04 UT: m1=17.6 CCD + R filter, Dia.=8″, DC 7; 70-cm f/4 L + CCD; Alexander Baransky (Kyiv comet station MPC 585, Ukraine)

C/2014 N3 (NEOWISE) ( observaciones)
2015 Nov. 11.91 UT: m1=15.1, Dia.=0.4′, DC=3; 60.3-cm L (305x); Sandor Szabo (Sopron, Hungary)
2015 Oct. 07.88 UT: m1=14.1: CCD, Dia.=0.6′, Tail=2.1′ in PA: 182 deg.; [T16] 0.15-m f/7.3 refractor + CCD; A. Novichonok & T. Prystavski (AstroCamp Observatory, I89 remotely from Nerpio, Spain)
2015 Sep. 13.45 UT: m1=14.4 CCD, Dia.=0.7′, Tail=1.4′ in PA: 195 deg.; [T20] 0.1-m f/5.0 astrograph + CCD; A. Novichonok & T. Prystavski (iTelescope observatory, H06 remotely from Mayhill, U.S.A.)
2015 Aug. 16.85 UT: m1=14.2: CCD, Dia.=0.8′, Tail=1.1′ in PA: 226 deg; 0.07-m f/6 refractor + CCD; A. Novichonok, K. Nezgovorov & T. Prystavski (Petrozavodsk State University Observatory, C30 Sheltozero Stn., Russia)
2015 July 23.16 UT: m1=14.9 CCD, Dia.=0.6′ Tail=2.1′ in PA: 203 deg.; [T16] 0.15-m f/7.3 refractor + CCD; A. Novichonok & T. Prystavski (AstroCamp Observatory, I89 remotely from Nerpio, Spain)
2015 Aug. 15.04 UT: m1=15.0, Dia.=0.3′, DC=4: 60.3-cm L (244x); Sandor Szabo (Sopron, Hungary); Sandor Szabo (Sopron, Hungary) [Moving was checked]
2015 Feb. 06.08 UT: m1=14.7 CCD, Dia.=0.6′, Tail=&1.8′ in PA 156 deg; [T20] 0.1-m f/5.0 astrograph + CCD; A. Novichonok & T. Prystavski (iTelescope observatory, H06 remotely from Mayhill, U.S.A.)
2015 Jan. 07.76 UT: m1=15.3 CCD, Dia.=0.32′, Tail=0.5′ in PA 150 deg; [T16] 0.15-m f/7.3 refractor + CCD; A. Novichonok & T.Prystavski (AstroCamp Observatory, I89, remotely from Nerpio, Spain)

C/2014 G3 (PANSTARRS) (1 observación)
2015 Apr. 21.99 UT: m1=17.4 CCD + R filter, Dia.=11″, DC 5, Tail=23″ in PA: 9-120 deg.; 70-cm f/4 L + CCD; Alexander Baransky (Kyiv comet station MPC 585, Ukraine)

C/2014 AA52 (Catalina) ( observaciones)
2015 Sep. 06.89 UT: m1=[15.8 NEGATIVE; 60.3-cm L (305x); Sandor Szabo (Sopron, Hungary) [Not seen, fainter than 15.8 mag]
2015 Sep. 05.49 UT: m1=17.2: CCD; [T31] 0.50-m f/6.8 astrograph + CCD + focal reducer; A. Novichonok & T. Prystavski (iTelescope observatory, Q62 remotely from Siding Spring, Australia)
2015 Aug. 19.91 UT: m1=16.8: CCD, Dia.=0.2′, Tail=0.5′ in PA: 179 deg.; 0.08-m f/7.5 refractor + CCD; A. Novichonok, T. Prystavski (Konchezero Stn., Republic of Karelia, Russia)
2015 July 22.14 UT: m1=16.3: CCD, Dia.=0.5′ Tail=1.7′ in PA: 226 deg.; [T16] 0.15-m f/7.3 refractor + CCD; A. Novichonok & T. Prystavski (AstroCamp Observatory, I89 remotely from Nerpio, Spain)
2015 Feb. 15.44 UT: m1=15.8 CCD, Dia.=0.34′, Tail=3.3′ in PA 122 deg; [T31] 0.50-m f/4.4 astrograph + CCD; A. Novichonok & T. Prystavski iTelescope observatory, Q62 remotely from Siding Spring, Australia)
2015 Jan. 17.51 UT: m1=15.3 CCD Dia.=0.5′, Tail=1.6′ in PA 107 deg; [T31] 0.50-m f/6.8 astrograph + CCD + focal reducer; A. Novichonok & T. Prystavski (iTelescope observatory, Q62, remotely from Siding Spring, Australia)

C/2014 A4 (SONEAR) ( observaciones)
2015 Nov. 11.89 UT: m1=16.2, Dia.=0.2′, DC=7; 60.3-cm L (305x); Sandor Szabo (Sopron, Hungary)
2015 Oct. 15.88 UT: m1=14.5 CCD, Dia.=0.6′, Tail=2.1′ in PA: 132 deg.; [T16] 0.15-m f/7.3 refractor + CCD; A. Novichonok & T.Prystavski (AstroCamp Observatory, I89 remotely from Nerpio, Spain)
2015 Sep. 13.41 UT: m1=15.1 CCD, Dia.=0.5′, Tail=&1.5′ in PA: 144 deg.; [T20] 0.1-m f/5.0 astrograph + CCD; A. Novichonok & T. Prystavski (iTelescope observatory, H06 remotely from Mayhill, U.S.A.)
2015 Sep. 13.00 UT: m1=15.6, Dia.=0.3′, DC=5; 60.3-cm L (305x); Sandor Szabo (Sopron, Hungary)
2015 Aug. 16.99 UT: m1=15.9: CCD, Tail=0.3′ in PA: 205 deg.; 0.07-m f/6 refractor + CCD; A. Novichonok, K. Nezgovorov & T. Prystavski (Petrozavodsk State University Observatory, C30 Sheltozero Stn., Russia)
2015 Mar. 5.74 UT: m1=15.7 CCD + R filter, Dia.=19″, DC 3. Tail=1′ in PA: 124 deg.; 70-cm f/4 L + CCD; Alexander Baransky (Kyiv comet station MPC 585, Ukraine)
2015 Feb. 22.42 UT: m1=15.8 CCD, Dia.=0.3′, Tail=&0.8′ in PA 103 deg; [T9] 0.32-m f/7.4 Ritchey-Chretien + CCD; A. Novichonok & T. Prystavski (iTelescope observatory, Q62 remotely from Siding Spring, Australia)
2015 Jan. 16.08 UT: m1=15.5 CCD, Dia.=0.5′, Tail=1.4′ in PA 95 deg; [T20] 0.1-m f/5.0 astrograph + CCD; A. Novichonok & T. Prystavski (iTelescope observatory, H06, remotely from Mayhill, U.S.A.)

C/2013 X1 (PANSTARRS) ( observaciones)
2015 Dec. 31.74 UT: m1=9.9, Dia.=2.3′, DC=5; 20.3-cm L f/5.9 (120x); Mieczyslaw Leszek Paradowski (Lublin, Poland)
2015 Dec. 30.93 UT: m1=10.7, Dia.=2,0′, DC=3; 30,5-cm L F/4,9 (93x); J. P. Navarro Pina (Sierra del Carrascalejo 590 mts, Murcia, Spain)
2015 Dec. 30.83 UT: m1=10.1, Dia.=2.0′, DC=5, Tail= 0.08 deg. PA: 40 deg.; 32-cm L f/5 (96x); Uwe Pilz (Leipzig, Germany)
2015 Dec. 30.80 UT: m1=9.2, Dia.=4′, DC=4; 20×80 B; Marek Biely (Brno, Czech Republic) [Not very difficult to see it. Moderately condensed and fairly bright.]
2015 Dec. 30.45 UT: m1=10.0, Dia.=4.4’, DC=6; 25-cm L f:5 (39x); Chris Wyatt (Walcha, NSW, Australia) [Coma very diffuse and semi-opaque, brightening to centre with faint stellar central condensation. Small tail visible 4’ in length in P.A. 078° approximately. Coma pale blue in colour. Low altitude = 17.8°, sky slightly hazy]
2015 Dec. 29.84 UT: m1=9.4, Dia.=5′, DC=4; 20.0-cm SCT (50x); Carlos Labordena (Castellón, España)
2015 Dec. 29.79 UT: m1=9.0, Dia.=4′, DC=4; 11.4-cm L f/8 (45x); Neil Norman (Ipswich, England)
2015 Dec. 29.73 UT: m1=10.0, Dia.=1.5′, DC=5; 20.3-cm L f/5.9 (120x); Mieczyslaw Leszek Paradowski (Lublin, Poland)
2015 Dec. 29.46 UT: m1=9.0; Dia.=5′; 25×100 B; David A. J. Seargent (Cowra, NSW, Australia)
2015 Dec. 29.44 UT: m1=10.0, Dia.=3.6’, DC=6; 25-cm L f:5 (x9x); Chris Wyatt (Walcha, NSW, Australia) [Coma diffuse and semi-transparent with opaque inner coma and faint stellar central condensation. Short fan-shaped tail 5’ in length in P.A. 067°; coma pale blue in colour, dims slightly in Swan Band filter. Sky Quality meter reading at zenith = 21.72 (in town, altitude = 1085m)]
2015 Dec. 28.47 UT: m1=9.1; 25×100 B; David A. J. Seargent (Cowra, NSW, Australia) [Magnitude approximate due to proximity to star]
2015 Dec. 27.72 UT: m1=9.0, Dia.=5′, DC=3/; 15.2-cm R f/5 (38x); Maik Meyer (Limburg, Germany)
2015 Dec. 26.70 UT: m1=9.1, Dia.=5′, DC=3/; 15.2-cm R f/5 (38x); Maik Meyer (Limburg, Germany)
2015 Dec. 17.00 UT: m1=9.9, Dia.=3′, DC=4; 22-cm L (60x); Marco Antonio Coelho Goiato (Araçatuba, Brazil) [Little enhancement with Swan band filter]
2015 Dec. 13.83 UT: m1=9.7, Dia.=5′, DC=4; 15.0-cm SCT (30x); Carlos Labordena (Castellón, España)
2015 Dec. 13.36 UT: m1=9.3, Dia.=4′, DC=3; 20×80 B; Man-To Hui (Joshua Tree National Park, CA, USA)
2015 Dec. 12.47 UT: m1=9.4, Dia.=5′; 25×100 B; David A. J. Seargent (Cowra, NSW, Australia)
2015 Dec. 11.80 UT: m1=8.8, Dia.=7′, DC=3; 10×50 B; Juan José González (Los Veneros – Sierra del Aramo, alt. 1340 m, Asturias, España) [En 25x100B: m1=9.2]
2015 Dec. 09.83 UT: m1=10.1, Dia.=3.5′, DC=4; 20-cm L (42x); Alex Scholten (Eerbeek, Netherlands)
2015 Dec. 08.86 UT: m1=10.2, Dia.=3′, DC=4; 20.0-cm SCT (80x); Carlos Labordena (Castellón, España)
2015 Dec. 08.764 TU: m1=9.8, Dia.=2′, DC=5; 11.4-cm f/8 (45x); Neil Norman (Ipswich, England)
2015 Dec. 07.79 UT: m1=10.1, Dia.=4′, DC=3/; 15.2-cm R f/5 (38x); Maik Meyer (Limburg, Germany)
2015 Dec. 07.70 UT: m1=9.8, Dia.=2.8′, DC=4/; 25.5-cm L (70.6x); Danil Sidorko (Korenovsk, Russia)
2015 Dec. 06.72 UT: m1=9.9 DSLR, Dia.=3′; digital reflex+0.3m lens; Giuseppe Pappa (Sicily, Italy)
2015 Dec. 05.90 UT: m1=9.8, Dia.=3.5′, DC=4; 20-cm L (42x); Alex Scholten (Eerbeek, Netherlands)
2015 Dec. 04.82 UT: m1=9.8, Dia.=3′, DC=s3/; 15.2-cm R f/5 (38x); Maik Meyer (Limburg, Germany)
2015 Dec. 04.74 UT: m1=10.3, Dia.=2.0′, DC=7; 32.0-cm L f/5 (96x); Uwe Pilz (Leipzig, Germany)
2015 Dec. 04.69 UT: m1=9.8, Dia.=3.3′, DC=5; 25.5-cm L (46.2x); Danil Sidorko (Korenovsk, Russia)
2015 Dec. 03.78 UT: m1=10.0 DSLR, Dia.=3′; digital reflex+0.3m lens; Giuseppe Pappa (Sicily, Italy)
2015 Dec. 03.77 UT: m1=9.2 DSLR, Dia.=3′; digital reflex+0.3m lens; Giuseppe Pappa (Sicily, Italy)
2015 Dec. 02.69 UT: m1=9.8, Dia.=3.8′, DC=4/; 25.5-cm L (46.2x); Danil Sidorko (Korenovsk, Russia)
2015 Dec. 02.48 UT: m1=9.9, Dia.=3′; 25×100 B; David A. J. Seargent (Cowra, NSW, Australia)
2015 Dec. 02.00 UT: m1=10.3, Dia.=3′, DC=4; 22-cm L (160x); Marco Antonio Coelho Goiato (Araçatuba, Brazil) [Little enhancement with Swan band filter]
2015 Dec. 01.86 UT: m1=9.1 DSLR, Dia.=3′; digital reflex+0.3m lens; Giuseppe Pappa (Sicily, Italy)
2015 Nov. 30.81 UT: m1=9.4, Dia.=5′, DC=5; 25×100 B; Juan José González (Alto del Trichero – Soto y Amío, alt. 1190 m, León, España) [En 20 cm SCT(77x): m1=9.6; Coma asimétrica]
2015 Nov. 30.72 UT: m1=9.2 DSLR, Dia.=4′; digital reflex+0.3m lens; Giuseppe Pappa (Sicily, Italy)
2015 Nov. 30.45 UT: m1=10.2, Dia.=3.3’, DC=5; 25cm L f:5 (39x); Chris Wyatt [Walcha, NSW, Australia) [No tail, coma elongated slightly to the East approximately, pale aqua-blue in colour, does not enhance in Swan Band filter. Outer coma diffuse and transparent gradually brightening to a small well condensed centre, not quite stellar]
2015 Nov. 29.98 UT: m1=10.2 DSLR, Dia.=3′; digital reflex+0.3m lens; Giuseppe Pappa (Sicily, Italy)
2015 Nov. 23.22 UT: m1=9.6, Dia.=5′, DC=3; 20-cm SCT (77x); Juan José González (Peña Nebina – Ferreruela de Tábara, alt. 970 m, Zamora, España) [Débil coma externa. Cielo muy claro de montaña]
2015 Nov. 22.44 UT: m1=10.3, Dia.=1.5′, DC=3; 30×125 B; Carl Hergenrother (Tucson, AZ, USA)
2015 Nov. 21.07 UT: m1=10.3, Dia.=2′, DC=3; 12.7-cm MN (61x); Valentín Díaz (Pantano de Elche, Alicante, España)
2015 Nov. 20.72 UT: m1=10.9, Dia.=2.0′, DC=7; 40.0-cm L f/4.5 (75x); Seiichi Yoshida (Gunma, Japan)
2015 Nov. 18.83 UT: m1=10,0, Dia.=2′, DC=s5/, Tail=7-8′; 12-cm R (100x); Gábor Sánta (Kisújszállás, Hungary) [m2=13.0, central disk=1.2′, NELM at the comet=7.0, 73 degs. above horizon. Very assymmethric coma, effusing material to the north, turn to PA: 68 degs., make a fan-shape tail]
2015 Nov. 18.75 UT: m1=10.7, Dia.=1.5′, DC=3/; 15.2-cm R f/5 (63x); Maik Meyer (Limburg, Germany) [not enhanced using a Lumicon Swan Band Filter]
2015 Nov. 17.55 UT: m1=10.8. Dia.=1.8’, DC=4/; 25-cm L f:5 (39x); Chris Wyatt (Walcha, NSW, Australia) [Outer coma diffuse and appears elongated to the NE. Moderately condensed centre, not quite stellar. Pale blue in colour. Does not enhance in Swan Band filter. Low altitude = 14.7°]
2015 Nov. 16.89 UT: m1=11.9, Dia.=2.5′, DC=3; 30.5 cms L f/4.9 (93x); J. P. Navarro Pina (El Ardal Bullas 550 mts, Murcia, Spain)
2015 Nov. 15.85 UT: m1=10.3, Dia.=2, DC=3/; 15.2-cm R f/5 (38x); Maik Meyer (Limburg, Germany)
2015 Nov. 15.75 UT: m1=11.0 DSLR, Dia.=2′; Digital reflex+0.3m lens; Giuseppe Pappa (Sicily, Italy)
2015 Nov. 15.74 UT: m1=11.5 DSLR, Dia.=2.5′, Digital reflex+0.3m lens; Giuseppe Pappa (Sicily, Italy)
2015 Nov. 14.87 UT: m1=10.4, Dia.=3′, DC=3, no cola; 20-cm SCT (50x); Carlos Labordena (Castellón, España)
2015 Nov. 13.79 UT: m1=10.6, Dia.=2, DC=3; 15.2cm R f/5 (38x); Maik Meyer (Limburg, Germany)
2015 Nov. 12.18 UT: m1=10.5, Dia.=1.5′, DC=3; 30×125 B; Carl Hergenrother (Tucson, AZ, USA)
2015 Nov. 11.88 UT: m1=11.0, Dia.=0.7′, DC=7, Tail= 1.2’ long to North; …50.8 cm L (305x); Sandor Szabo (Sopron, Hungary)
2015 Nov. 11.83 UT: m1=10,8, Dia.=1.3’x2.5′ drop-like coma, DC=s3/; 25-cm R (200x); Gábor Sánta (Budapest, Hungary) [m2=13.7, NELM at the comet=4.5, Suburban sky. 62 degs. above horizon]
2015 Nov. 10.23 UT: m1=10.3, Dia.=2′, DC=4; 30×125 B; Carl Hergenrother (Tucson, AZ, USA)
2015 Nov. 09.85 UT: m1=11.0, Dia.=1.5′, DC=1; 30.5-cms L F/4.9 (93x); J. P. Navarro Pina (El Ardal 550 mts, Bullas, Murcia, Spain)
2015 Nov. 08.88 UT: m1=11.3, Dia.=1.5′, DC=2; 30.5-cms L F/4.9 (120x); J. P. Navarro Pina (El Palmar, Murcia, Spain)
2015 Nov. 07.84 UT: m1=10.4, Dia.=2.5′, DC=3/; 20-cm SCT (77x); Juan José González (Alto del Cellerón – Camposagrado, alt. 1190 m, León, España)
2015 Nov. 07.768 UT: m1=10.9, Dia.=1.5′, DC=2; 11.4-cm L f/8 (45x); Neil Norman (Ipswich, England)
2015 Nov. 07.19 UT: m1=10.6, Dia.=2′, DC=4; 22-cm L (160X); Marco Antonio Coelho Goiato (Araçatuba, Brazil)
2015 Nov. 06.92 UT: m1=11.3, Dia.=2′, DC=4; 25-cm L (67x); Valentín Díaz (La Romaneta, Alicante, España)
2015 Nov. 05.89 UT: m1=11.4, Dia.=1.2′, DC=4/; 20-cm L (80x); Artyom Novichonok (Chalna fields, Russia)
2015 Nov. 03.89 UT: m1=10.8, Dia.=3′, DC=3, no cola; 20cm SCT (50x); Carlos Labordena (Castellón, España)
2015 Nov. 03.87 UT: m1=10.0, Dia.=4′, DC=3, no cola; 20-cm B (50x); Carlos Labordena (Castellón, España)
2015 Nov. 03.81 UT: m1=11.3, Dia.=1.1′, DC=4/; 20-cm L (80x); Artyom Novichonok (Konchezero station, Russia)
2015 Nov. 02.89 UT: m1=11.5, Dia.=2′, DC=3; 30.5-cm L f/4.9 (120x); J. P. Navarro Pina (El Palmar, Murcia, Spain)
2015 Nov. 02.77 UT: m1=11.5; Uwe Pilz (Leipzig, Germany)
2015 Nov. 01.85 UT: m1=10.5, Dia.=3.5′, DC=3; 20-cm SCT (77x); Juan José González (Pandorado, alt. 1190 m, León, España) [Más brillante que lo previsto. Estrellas en la coma de magnitudes 11.8 (APASS) y 12.6 (GSC)]
2015 Oct. 24.06 UT: m1=11.2, Dia.=1.7′, DC=–, Tail= 0.04 deg. PA: 0 deg.; 32.0-cm L f/5 (96x); Uwe Pilz (Leipzig, Germany)
2015 Oct. 18.90 UT: m1=12.2 DSLR, Dia.=1′, DC=7; Digital reflex+0.3m lens; Giuseppe Pappa (Sicily, Italy)
2015 Oct. 15.06 UT: m1=11.8, Dia.=1.1′, DC=5; 20-cm SCT (133x); Juan José González (Alto del Castro, alt. 1720 m, León, España) [Estrellas de comparación tomadas de la fotometría APASS cercana al cometa]
2015 Oct. 11.60 UT: m1=13.1, Dia.=0.8′, DC=6; 40.0-cm L f/4.5 (144x); Seiichi Yoshida (Gunma, Japan)
2015 Oct. 08.94 UT: m1=12.0 DSLR, Dia.=1′, DC=6; Digital Reflex+0,3m lens; Giuseppe Pappa (Sicily, Italy)
2015 Oct. 03.81 UT: m1=10.2, Dia.=3′, DC=4; 25×100 B; Mieczyslaw L. Paradowski (Lublin, Poland)
2015 Sep. 28.48 UT: m1=12.4: CCD, Dia.=&1.0′; [T20] 0.1-m f/5.0 astrograph + CCD; A. Novichonok & T. Prystavski (iTelescope observatory, H06 remotely from Mayhill, U.S.A.) [interference by Moon: Moon phase 1.00, altitude 24 deg.]
2015 Sep. 25.45 UT: m1=12.8, Dia.=0.9′, DC=5; 35.5-cm (162x); Carl Hergenrother (Tucson, AZ, USA)
2015 Sep. 21.72 UT: m1=12.5, Dia.=1.0′, DC=4; 40.0-cm L f/4.5 (144x); Seiichi Yoshida (Gunma, Japan)
2015 Sep. 17.92 UT: m1=12.5: DSLR, Dia.=&0.8′; 0.20-m f/4 reflector + DSLR camera; Taras Prystavski (Lviv, Ukraine) [Red light pollution zone, Bortle sky class=6]
2015 Sep. 15.47 UT: m1=12.8 CCD, Dia.=1.0′; [T20] 0.1-m f/5.0 astrograph + CCD; A. Novichonok & T. Prystavski (iTelescope observatory, H06 remotely from Mayhill, U.S.A.)
2015 Sep. 13.03 UT: m1=13.3, Dia.=0.8′, DC=5; 50.8-cm L (189x); Sandor Szabo (Sopron, Hungary)
2015 Aug. 23.89 UT: m1=13.9 DSLR, Dia.=0.8′; Nikon 5200 + 200-mm lens; Artyom Novichonok (Konchezero, Russia)
2015 Aug. 19.95 UT: m1=13.9 CCD, Dia.=0.43′, Tail=0.4′ in PA: 4 deg.; 0.08-m f/7.5 refractor + CCD; A. Novichonok, T. Prystavski (Konchezero Stn., Republic of Karelia, Russia)
2015 Aug. 15.05 UT: m1=14.8, Dia.=0.4′, DC=3; 60.3-cm L (305x); Sandor Szabo (Sopron, Hungary)
2015 Apr. 17.10 UT: m1=15.1: CCD, Dia.=&0.3′, Tail=&0.5′ in PA 54 deg; [T20] 0.1-m f/5.0 astrograph + CCD; A. Novichonok & T. Prystavski (iTelescope observatory, H06 remotely from Mayhill, U.S.A.) [evening twilight]
2015 Mar. 18.83 UT: m1=14.8, Dia.=0.3′, DC=5; 50.8 cm L (307x); Sandor Szabo (Sopron, Hungary)
2015 Mar. 16.88 UT: m1=15.3 CCD + R filter, Dia.=29″, DC 4, Tail=1′ in PA: 55-93 deg.; 70-cm f/4 L + CCD; Alexander Baransky (Kyiv comet station MPC 585, Ukraine)
2015 Mar. 11.88 UT: m1=15.4 CCD, Dia.=0.5′, Tail=0.7′ in PA 81 deg; [T16] 0.15-m f/7.3 refractor + CCD; A. Novichonok & T. Prystavski (AstroCamp Observatory, I89 remotely from Nerpio, Spain)
2015 Mar. 01.28 UT: m1=14.9: CCD, Dia.=&0.5′; [T20] 0.1-m f/5.0 astrograph + CCD; A. Novichonok & T. Prystavski (iTelescope observatory, H06 remotely from Mayhill, U.S.A.) [interference by Moon: Moon phase 0.83, altitude 50 deg.]
2015 Jan. 16.09 UT: m1=15.7 CCD, Dia.=0.3′; [T20] 0.1-m f/5.0 astrograph + CCD; A. Novichonok & T. Prystavski (iTelescope observatory, H06 remotely from Mayhill, U.S.A.)

C/2013 V5 (Oukaimeden) ( observaciones)
2015 Mar. 28.14 UT: m1=16.9: CCD, Dia.=&0.6′; [T16] 0.15-m f/7.3 refractor + CCD; A. Novichonok & T. Prystavski (AstroCamp Observatory, I89 remotely from Nerpio, Spain)
2015 Jan. 20.51 UT: m1=15.6: CCD, Dia.=&0.8′, Tail=3.7′ in PA 117 deg; [T20] 0.1-m f/5.0 astrograph + CCD; A. Novichonok & T. Prystavski (iTelescope observatory, H06 remotely from Mayhill, U.S.A.)
2015 Jan. 02.11 UT: m1=14.9 CCD, Dia.=1.06′, Antitail=2.1′ in PA: 298 deg., Tail=&14.8′ in PA: 122 deg.; 0.3-m f/1.5 astrograph + CCD; G. Borisov & T. Prystavski (MARGO – MPC L51, Crimea-Nauchnij)

C/2013 V4 (Catalina) ( observaciones)
2015 Nov. 11.98 UT: m1=15.7, Dia.=0.3′, DC=4; 50.8-cm L (307x); Sandor Szabo (Sopron, Hungary)
2015 Oct. 13.48 UT: m1=14.3 CCD, Dia.=0.7′, Tail=1.2′ in PA: 219 deg.; [T20] 0.1-m f/5.0 astrograph + CCD; A. Novichonok & T. Prystavski (iTelescope observatory, H06 remotely from Mayhill, U.S.A.)
2015 Sep. 13.45 UT: m1=14.7 CCD, Dia.=0.6′, Tail=1.0′ in PA: 206 deg.; [T20] 0.1-m f/5.0 astrograph + CCD; A. Novichonok & T. Prystavski (iTelescope observatory, H06 remotely from Mayhill, U.S.A.)
2015 Sep. 13.07 UT: m1=14.9, Dia.=0.7′, DC=2; 60.3-cm L (305x); Sandor Szabo (Sopron, Hungary)
2015 Aug. 16.87 UT: m1=15.0: CCD, Dia.=0.5′; 0.07-m f/6 refractor + CCD; A. Novichonok, K. Nezgovorov & T. Prystavski (Petrozavodsk State University Observatory, C30 Sheltozero Stn., Russia)
2015 Mar. 28.14 UT: m1=15.5 CCD, Dia.=0.5′; [T20] 0.1-m f/5.0 astrograph + CCD; A. Novichonok & T. Prystavski (iTelescope observatory, H06 remotely from Mayhill, U.S.A.)
2015 Mar. 16.78 UT: m1=15.4 CCD + R filter, Dia.=26″, DC 4, Tail=4′ in PA: 172 deg.; 70-cm f/4 L + CCD; Alexander Baransky (Kyiv comet station MPC 585, Ukraine)
2015 Jan. 14.75 UT: m1=16.4 CCD + R filter, Dia.=14″, DC 4, Tail=37″ in PA: 141 deg.; 70-cm f/4 L + CCD; Alexander Baransky (Kyiv comet station MPC 585, Ukraine)
2015 Jan. 08.83 UT: m1=15.6 CCD, Dia.=0.46′, Tail=&1.2′ in PA 168 deg; [T16] 0.15-m f/7.3 refractor + CCD; A. Novichonok & T.Prystavski (AstroCamp Observatory, I89 remotely from Nerpio, Spain)

C/2013 V2 (Borisov) ( observaciones)
2015 May  20.96 UT: m1=15.3 CCD + R filter, Dia.=25″, DC=6; Alexander Baransky (Kyiv comet station MPC 585, Ukraine)
2015 May  11.93 UT: m1=15.6, Dia.=0.3′, DC=4; 50.8 cm L (245x); Sandor Szabo (Sopron, Hungary)
2015 May  06.01 UT: m1=15.3 CCD + R filter, Dia.=20″, DC=6, Tail=42″ in PA: 26-127 deg. Alexander Baransky, Kyiv comet station [Short fan-shaped tail]
2015 Apr. 20.42 UT: m1=14.2 CCD, Dia.=0.95′, Tail=&2′ in PA 333 deg; [T20] 0.1-m f/5.0 astrograph + CCD; A. Novichonok & T. Prystavski (iTelescope observatory, H06 remotely from Mayhill, U.S.A.)
2015 Apr. 10.98 UT: m1=15.0 CCD + R filter, Dia.=31″, DC 5, 70-cm f/4 L + CCD; Alexander Baransky (Kyiv comet station MPC 585, Ukraine)
2015 Mar. 24.08 UT: m1=14.9 CCD + R filter, Dia.=54″, DC 5, Tail=3′ in PA: 319 deg. Alexander Baransky, Kyiv comet station. [Paraboloid tail]
2015 Mar. 21.91 UT: m1=14.8: CCD, Dia.=1.1′, Tail=5.0′ in PA 322 deg; 0.3-m f/1.5 astrograph + CCD; G. Borisov & T. Prystavski (MARGO – MPC L51 Crimea-Nauchnij)
2015 Mar. 18.92 UT: m1=15.4, Dia.=0.4′, DC=2; 50.8 cm L (307x); Sandor Szabo (Sopron, Hungary)
2015 Mar. 11.91 UT: m1=15.1 CCD, Dia.=0.7′; [T16] 0.15-m f/7.3 refractor + CCD; A. Novichonok & T. Prystavski (AstroCamp Observatory, I89 remotely from Nerpio, Spain)
2015 Mar. 11.03 UT: m1=14.7 CCD + R filter, Dia.=25″, DC 5, Tail=3′ in PA: 290-343 deg.; 70-cm f/4 L + CCD; Alexander Baransky, Kyiv comet station MPC 585, Ukraine) [Paraboloid tail]
2015 Mar. 06.02 UT: m1=15.2 CCD + R filter, Dia.=37″, DC 5D, Tail=1′ in PA: 330 deg.; 70-cm f/4 L + CCD; Alexander Baransky (Kyiv comet station MPC 585, Ukraine) [Paraboloid tail]
2015 Feb. 21.03 UT: m1=15.4 CCD Dia.=0.6′, Tail=&5.8′ in PA 321 deg; 0.3-m f/1.5 astrograph + CCD; G. Borisov & T. Prystavski (MARGO – MPC L51, Crimea-Nauchnij)
2015 Feb. 18.16 UT: m1=15.3 CCD + R filter, Dia.=37″, DC 5, Tail=2′ in PA: 293-347 deg.; 70-cm f/4 L + CCD; Alexander Baransky (Kyiv comet station MPC 585, Ukraine) [Paraboloid tail]
2015 Feb. 17.10 UT: m1=14.9 CCD + R filter, Dia.=35″, DC 6, 70-cm f/4 L + CCD; Alexander Baransky (Kyiv comet station MPC 585, Ukraine)
2015 Jan. 24.07 UT: m1=15.3 CCD, Dia.=0.9′, Tail=5.0′ in PA 322 deg; 0.3-m f/1.5 astrograph + CCD; G. Borisov & T. Prystavski (MARGO – MPC L51, Crimea-Nauchnij)
2015 Jan. 18.18 UT: m1=14.9 CCD, Dia.=1.1′, Tail=1.7′ in PA 313 deg; [T16] 0.15-m f/7.3 refractor + CCD; A. Novichonok & T.Prystavski (AstroCamp Observatory, I89 remotely from Nerpio, Spain)

C/2013 US10 (Catalina) ( observaciones)
2015 Dec. 31.24 UT: m1=6.4, Dia.=15.0′, DC=4; 7×50 B; Uwe Pilz (Leipzig, Germany)
2015 Dec. 31.18 UT: m1=6.6:, Dia.=&5′, DC=3/; 20×80 B; Marek Biely (Brno, Czech Republic) [Finally I could see it despite not very good observing conditions. Coma was diffuse and circular, tails were not visible. Observation was influenced by thin clouds and moonlight.]
2015 Dec. 31.13 UT: m1=6.4, Dia.=8′, DC=4; 25×100 B; Martin Lehky (Czech Republic)
2015 Dec. 30.51 UT: m1=6.4, Dia.=8′, DC=5; 5-cm B (7x); Salvador Aguirre (Hermosillo, Sonora, Mexico)
2015 Dec. 30.44 UT: m1=6.1, Dia.=8, DC=4; 10×50 B; Carl Hergenrother (Tucson, AZ, USA)
2015 Dec. 30.25 UT: m1=6.3, Dia.=&10′, DC=7; 8×56 B; Alex Scholten (Eerbeek, Netherlands) (moonlight)
2015 Dec. 30.17 UT: m1=6.3, Dia.=10′, DC=5; 10×50 B; Martin Lehky (Czech Republic)
2015 Dec. 28.21 UT: m1=6.2, Dia.=8′, DC=7; 15×80 B; Alex Scholten (Eerbeek, Netherlands) (moonlight)
2015 Dec. 27.52 UT: m1=6.4, Dia.=7′, DC=5; 5-cm B (7x); Salvador Aguirre (Hermosillo, Sonora, Mexico)
2015 Dec. 23.24 UT: m1=5.7, Dia.=10′, DC=5; 11.4-cm L f/8 (45x); Neil Norman (Ipswich, England)
2015 Dec. 22.20 UT: m1=6.2, Dia.=9′, DC=3/, Tail=10′ PA: 155 deg.; 12×50 B; Giuseppe Pappa (Mascalucia, Sicily, Italy)
2015 Dec. 21.54 UT: m1=6.4, Dia.=6, DC=6; 10×50 B; Carl Hergenrother (Tucson, AZ, USA)
2015 Dec. 21.51 UT: m1=6.5:, Dia.=7′, DC=5; 5-cm B (7x); Salvador Aguirre (Hermosillo, Sonora, Mexico)
2015 Dec. 21.24 UT: m1=6.2, Dia.=10′, DC=6; 10×50 B; Juan José González (Alto del Castro – Aralla, alt. 1720 m, León, España) [En 25x100B: Cola iónica: 1.1º en a.p. 280º, Trail de polvo: 0.4º en a.p.150º]
2015 Dec. 21.19 UT: m1=6.2, Dia.=6′, DC=5, Tail= 0.5 deg. in PA: 295 deg.; 25×100 B; Mieczyslaw Leszek Paradowski (Lublin, Poland)
2015 Dec. 21.18 UT: m1=6.2, Dia.=6′, DC=5; 7×50 B; Mieczyslaw Leszek Paradowski (Lublin, Poland)
2015 Dec. 20.21 UT: m1=6.3, Dia.=9′, DC=5, Tail= 0.5º (L254) PA: 171º; 10×50 B; Valentín Díaz (Barranc del Leon, Alicante, España)
2015 Dec. 19.31 UT: m1=6.2, Dia.=7′, DC=5; 7×50 B; Marco Antonio Coelho Goiato (Araçatuba, Brazil) [Nautical twilight]
2015 Dec. 19.30 UT: m1=6.3, Dia.=6′, DC=6; 20×100 B; Marco Antonio Coelho Goiato (Araçatuba, Brazil)
2015 Dec. 19.21 UT: m1=5.3, Dia.=25′, DC=8; 20×80 B; J. P. Navarro Pina (El Palmar, Murcia, Spain)
2015 Dec. 18.75 UT: m1=6.2, Dia.=7.8′, DC=6; 20-cm; Con Stoitsis (Mildura, Victoria, Australia) [Coma has almost stellar appearance, more difussed towards edges. Elongated, but couldn’t make out tail Approx 9 degrees above horizon and observation made in twilight]
2015 Dec. 18.71 UT: m1=6.4, Dia.=8.5’, DC=6; 7×50 B; [Chris Wyatt (Walcha, NSW, Australia) [Coma diffuse and opaque at centre, small stellar central condensation. Enhances strongly in Swan Band filter. Low altitude = 10.2˚, no tail]
2015 Dec. 18.52 UT: m1=6.4, Dia.=&6′, DC=5; 5-cm B (7x); Salvador Aguirre (Hermosillo, Sonora, Mexico)
2015 Dec. 18.22 UT: m1=6.3, Dia.=6′, DC=5, Tail= 30 arcmin; 15.0-cm SCT (30x); Carlos Labordena (Castellón, España)
2015 Dec. 18.21 UT: m1=6.2, Dia.=6′, DC=4, Tail= 20 arcmin; 11×80 B; Carlos Labordena (Castellón, España)
2015 Dec. 17.52 UT: m1=6.4, Dia.=&6′, DC=5; 5-cm B (7x); Salvador Aguirre (Hermosillo, Sonora, Mexico)
2015 Dec. 17.15 UT: m1=6.3, Dia.=7.5′, DC=6; 6-cm B (12x); Artyom Novichonok (Konchezero station, Russia)
2015 Dec. 16.72 UT: m1=6.4; 25×100 B; David A. J. Seargent (Cowra, NSW, Australia)
2015 Dec. 16.52 UT: m1=6.3, Dia.=7′, DC=5; 5-cm B (7x); Salvador Aguirre (Hermosillo, Sonora, Mexico)
2015 Dec. 16.50 UT: m1=6.3, Dia.=7′, DC=5; 8-cm B (20x); Brad Young (Tulsa, OK, USA) [slight tail (15′ long) noticed this date]
2015 Dec. 16.23 UT: m1=6.4, Dia.=5′, DC=3; 20×80 B; Valentín Díaz (Elche capital, Alicante, España)
2015 Dec. 16.14 UT: m1=–.-, Dia.=7.8′, DC=5/, Tail= 0.2 deg.; 20-cm L (80x); Artyom Novichonok (near Shapshozero, Russia)
2015 Dec. 16.11 UT: m1=6.4, Dia.=8′, DC=6, Tail= 0.6 deg.; 6-cm B (12x); Artyom Novichonok (near Shapshozero, Russia)
2015 Dec. 15.52 UT: m1=6.4, Dia.=7, DC=5; 10×50 B; Carl Hergenrother (Tucson, AZ, USA)
2015 Dec. 15.23 UT: m1=6.5, Dia.=4′, DC=4, Tail= 15 arcmin; 11×80 B; Carlos Labordena (Castellón, España)
2015 Dec. 14.51 UT: m1=6.3, Dia.=7′, DC=5/; 5-cm B (7x); Salvador Aguirre (Hermosillo, Sonora, Mexico)
2015 Dec. 13.55 UT: m1=6.5, Dia.=5′, DC=6; 20×80 B; Man-To Hui (Joshua Tree National Park, CA, USA) [Tail=0.6 deg. dust tail in p.a. 150 deg., 0.5 deg ion tail in p.a. 300 deg.)
2015 Dic. 13.20 UT: m1=6.0, Dia.=6′, DC=5, Tail=10′ PA: 155 deg.; 12×50 B; Giuseppe Pappa (Acitrezza, Sicily, Italy)
2015 Dec. 12.31 UT: m1=6.3, Dia.=6′, DC=6; 20×100 B; Marco Antonio Coelho Goiato (Araçatuba, Brazil) [Nautical twilight]
2015 Dec. 12.24 UT: m1=6.2, Dia.=5′, DC=6/; 10×50 B; Juan José Gonzalez (Collada de la Cobertoria, alt. 1150 m, Asturias, España) [En 25x100B: m1=6.4; Cola iónica: 0.8º en a.p. 290º, Trail de polvo: 0.6º en a.p.150º]
2015 Dic. 12.18 UT: m1=6.1, Dia.=6′, DC=4, Tail=10′ PA: 160 deg.; 12×50 B; Giuseppe Pappa (Mascalucia, Sicily, Italy)
2015 Dec. 11.52 UT: m1=6.4, Dia.=7′, DC=5/; 5-cm B (7x); Salvador Aguirre (Hermosillo, Sonora, Mexico)
2015 Dec. 11.19 UT: m1=6.2, Dia.=3′, DC=5, Tail= 14′ in pa: 300 deg.; 25×100 B; Mieczyslaw Leszek Paradowski (Lublin, Poland)
2015 Dec. 10.54 UT: m1=6.3, Dia.=6, DC=5; 10×50 B; Carl Hergenrother (Tucson, AZ, USA)
2015 Dec. 10.52 UT: m1=6.4, Dia.=7′, DC=5/; 5-cm B (7x); Salvador Aguirre (Hermosillo, Sonora, Mexico)
2015 Dec. 10.34 TU: m1=6.3, Dia.=5′, DC=4; 25-cm L f:4.5 (66x); Gonzalo Vargas Beltrán (Cochabamba Bolivia) [La coma aparece un poco irregular en su contorno sugiriendo posible origen de una cola entre valores AP de 250 a 300 grados, fácilmente visible con visión lateral, y entre 110 a 120 grados muy difusa, observada con filtro Skyglow)
2015 Dec. 10.23 UT: m1=6.4, Dia.=4′, DC=4, Tail= 20 arcmin; 11×80 B; Carlos Labordena (Castellón, España)
2015 Dec. 09.52 UT: m1=6.2, Dia.=4, DC=7; 10×50 B; Carl Hergenrother (Tucson, AZ, USA)
2015 Dec. 09.52 UT: m1=6.4:, Dia.=7′, DC=5/; 5-cm B (7x); Salvador Aguirre (Hermosillo, Sonora, Mexico)
2015 Dec. 08.52 UT: m1=6.3, Dia.=6, DC=6; 10×50 B; Carl Hergenrother (Tucson, AZ, USA)
2015 Dec. 08.52 UT: m1=6.5, Dia.=7′, DC=5/; 5-cm B (7x); Salvador Aguirre (Hermosillo, Sonora, Mexico)
2015 Dec. 08.34 UT: m1=6.4, Dia.=6′, DC=3; 8cm R (40x); Gonzalo Vargas B. (Cochabamba , Bolivia)
2015 Dec. 08.30 UT: m1=6.6*, Dia.=5’, DC=4, Tail: no visible; 25-cm. SCT (40x); Alberto Anunziato (Oro Verde, Argentina)
2015 Dec. 08.23 UT: m1=6.6, Dia.=6′, DC=7; 15×80 B; Alex Scholten (Eerbeek, Netherlands) (moonlight)
2015 Dec. 07.72 UT: m1=6.5, Dia.=3’, DC=5/; 25-cm L f:5 (39x); Chris Wyatt (Walcha, NSW, Australia) [Moonlight, Twilight, slightly sky haze, Low altitude = 8.5°. Ground fog present to 0.5m. Coma appears quite diffuse and opaque, pale aqua-blue in colour, well condensed and almost stellar. Enhances strongly in Swan Band filter. Background sky washed with moonlight, comet was easy to locate 2.6° away from the thin crescent Moon in PA: 048°. Not visible in 11×70 B’s due to scattered moonlight and haze]
2015 Dec. 07.53 UT: m1=6.5, Dia.=7′, DC=4/; 5-cm B (7x); Salvador Aguirre (Hermosillo, Sonora, Mexico)
2015 Dec. 07.19 UT: m1=6.5 DSLR, Dia.=7′; digital reflex+0.3m lens; Giuseppe Pappa (Sicily, Italy)
2015 Dec. 07.18 UT: m1=6.4, Dia.=4.5′, DC=6; 7-cm B (15x); Artyom Novichonok (Petrozavodsk, Russia)
2015 Dec. 07.18 UT: m1=6.3 Dia.=6′, DC=4; 12×50 B; Giuseppe Pappa (Sicily, Italy)
2015 Dec. 06.53 UT: m1=6.4, Dia.=4, DC=6; 10×50 B; Carl Hergenrother (Tucson, AZ, USA)
2015 Dec. 06.53 UT: m1=6.5, Dia.=7′, DC=4/; 5-cm B (7x); Salvador Aguirre (Hermosillo, Sonora, Mexico)
2015 Dec. 06.25 UT: m1=6.3, Dia.=5′, DC=6; 10×50 B; Juan José González (Collada de la Cobertoria, alt. 1150 m, Asturias, España) [Alguna interferencia lunar. En 25×100 B: m1=6.5; Cola iónica: 0.6º en a.p. 290º, Trail de polvo: 0.3º en a.p.150º]
2015 Dec. 06.07 UT: m1=6.4, Dia.=3′, DC=4; 15×70 B; Willian Souza (Sao Paulo, Brazil)
2015 Dec. 06.07 UT: m1=6.5, Dia.=3′, DC=4; 10-cm f/5 R (28x); Willian Souza (Sao Paulo, Brazil)
2015 Dec. 05.21 UT: m1=6.3, Dia.=4.0′; 16×70 B; Uwe Pilz (Leipzig, Germany)
2015 Dec. 04.53 UT: m1=6.6:, Dia.=7′, DC=4/; 5-cm B (7x); Salvador Aguirre (Hermosillo, Sonora, Mexico)
2015 Dec. 04.50 UT: m1=6.5, Dia.=5′, DC=5; 8-cm B (20x); Brad Young (Tulsa, OK, USA)
2015 Dec. 04.23 UT: m1=6.2, Dia.=3′, DC=4, Tail= 20 arcmin; 11×80 B; Carlos Labordena (Castellón, España)
2015 Dec. 04.208 UT: m1=6.2, Dia.=8′, DC=4/, Tail= 0.3′, PA: 143 deg.; 11.4-cm L f/8 (45x); Neil Norman (Ipswich, England)
2015 Dec. 04.19 UT: m1=6.2, Dia.=7′; DC=5; 12×50 B; Giuseppe Pappa (Sicily, Italy)
2015 Dec. 03.54 UT: m1=6.5, Dia.=7′, DC=4/; 5-cm B (7x); Salvador Aguirre (Hermosillo, Sonora, Mexico)
2015 Dec. 03.50 UT: m1=6.5, Dia.=5′, DC=5; 8-cm B (20x); Brad Young (Tulsa, OK, USA)
2015 Dec. 02.54 UT: m1=6.2, DC=4/; 5-cm B (7x); Salvador Aguirre (Hermosillo, Sonora, Mexico)
2015 Dec. 01.47 UT: m1=6.2, Dia.=10’, DC=4; 10×50 B; Jorge Solano (Montesano Z16, Guatemala City)
2015 Dec. 01.24 UT: m1=6.2, Dia.=4′, DC=6; 10×50 B; Juan José González (Puerto de Aralla, alt. 1530 m, León, España) [En 10×50 B: Altura sobre el horizonte: 11º. En 25×100 B: m1=6.4. En 20 cm SCT: m1=6.5; Cola iónica: 0.3º en a.p. 290º, cola de polvo: 0.3º en a.p.140º. Interferencia lunar. Luz zodiacal. Cielo muy claro de montaña]
2015 Nov. 30.53 UT: m1=6.2, Dia.=4, DC=5; 10×50 B; Carl Hergenrother (Tucson, AZ, USA)
2015 Nov. 28.53 UT: m1=6.3, Dia.=4′, DC=5; 10×50 B; Carl Hergenrother (Tucson, AZ, USA)
2015 Nov. 28.07 UT: m1=6.0, Dia.=3′, DC=5; 10-cm R f/5 (28x); Willian Souza (Sao Paulo, Brazil)
2015 Nov. 28.22 UT: m1=6.0; 16×70 B; Uwe Pilz (Leipzig, Germany)
2015 Nov. 24.23 UT: m1=5.9, Dia.=3′, DC=4, Cola= 20′; 11×80 B; Carlos Labordena (Castellón, España)
2015 Nov. 24.23 UT: m1=6.5, Dia.=3′, DC=5; 20×60 B; José J. Chambó (Llosa de Ranes, Valencia, España)
2015 Nov. 23.25 UT: m1=5.7, Dia.=4′, DC=5, Cola: 0.2º en AP 280º; 25×100 B; Juan José González (Peña Nebina – Ferreruela de Tábara, alt. 970 m, Zamora, España) [Altura sobre el horizonte: 5º. Crepúsculo astronómico. Luz zodiacal. Estrellas de comparación situadas a similar baja altura que el cometa. Observación realizada bajo mejores condiciones que la previa de Nov. 22.25, desde una ubicación de montaña más elevada y oscura, percibiendo un mayor diámetro de coma y con ello una m1 más brillante]
2015 Nov. 23.24 UT: m1=6.0, Dia.=5′, DC=6; 20×80 B; J. P. Navarro Pina (El Palmar, Murcia, Spain)
2015 Nov. 22.54 UT: m1=6.5, Dia.=2′, DC=5; 30×125 B; Carl Hergenrother (Tucson, AZ, USA)
2015 Nov. 22.25 UT: m1=6.0:, Dia.=3′, DC=5; 25×100 B; Juan José González (Roales de Campos, alt. 750 m, Valladolid, España) [Altura sobre el horizonte: 4º. Crepúsculo astronómico. Luz zodiacal]
2015 Nov. 21.50 UT: m1=7.0, Dia.=3′, DC=4; 8-cm B (20x); Brad Young (Tulsa, OK, USA)
2015 Oct. 16.39 UT: m1=7.0, Dia.=7.6’, DC=6; 11×70 B; Chris Wyatt (Walcha, NSW, Australia) [Low altitude = 8.9°; Moonlight. Coma diffuse, short ion tail just visible 7.5’ in length in P.A. 138°, bright stellar central condensation, enhances strongly in Swan Band filter. Through 10” f/5 dob at x39 I could trace the tail to 35’ in length in P.A. 138° with first 8.2’ of the tail opaque and pale-green in colour, the inner coma enhanced strongly in Swan Band and also appeared as an opaque pale-green colour]
2015 Oct. 13.94 UT: m1=6.5, Dia.=8′, DC=5; 20×100 B; Marco Antonio Coelho Goiato (Araçatuba, Brazil) [Comet altitude: 11º; atmospheric extinction applied]
2015 Oct. 09.39 UT: m1= 6.9, Dia.=10.5’, DC= 5/; 7×50 B; Chris Wyatt (Walcha, NSW, Australia) [Low altitude = 15.5°. Outer coma diffuse, inner coma opaque with compact central condensation, sometimes stellar. Centre enhances strongly in Swan Band filter, no tail. Tail visible in 10” f/5 dob at x39, 11.5’ of tail length opaque and fades with a (transparent) traceable length of 58’ in PA: 136°]
2015 Oct. 08.35 UT: m1=6.9, Dia.=4.8′, DC=4; 11×70 B; Con Stoitsis (Caulfield, Australia) [Comet approx 18 degrees above the horizon]
2015 Oct. 06.96 UT: m1=6.5, Dia.=12′, DC=4; 7×50 B; Marco Antonio Coelho Goiato (Araçatuba, Brazil)
2015 Oct. 05.94 UT: m1=6.5, Dia.=12′, DC=4/; 7×50 B; Marco Antonio Coelho Goiato (Araçatuba, Brazil)
2015 Oct. 05.39 UT: m1=7.0, Dia.=6.5’, DC=4; 11×70 B; Chris Wyatt (Walcha, NSW, Australia) [No tail, close to mag 8.0 star, 4.1’ away in P.A. 162°; Sky slightly hazy. Low altitude = 19.1°; Faint transparent outer coma, opaque inner coma. Through 10” f/5 dob the tail extension 8.3’ in length in P.A. 132° is opaque and fades to a transparent tail tracing out to to 40’ in length in same PA]
2015 Oct. 03.38 UT: m1=7.1, Dia.=9’, DC=6; 11×70 B; Chris Wyatt (Walcha, NSW, Australia) [No tail, close to mag 8.6 star, 8.5’ away in P.A. 116°; Outer coma transparent and faint, inner coma disc-like and opaque with small stellar central condensation. Enhances well in Swan Band filter. Through the 10” f/5 dob a x39 there is a tail visible which was traced to 27’ in length approximately in P.A. 133°. Curiously there was a faint smudge around 3’ in width, 29.5’ from the coma centre in P.A. 133°, which may be part of the tail (DE?)]
2015 Oct. 02.93 UT: m1=6.5, Dia.=10´, DC=4; 10×50 B; Willian Souza (Maresias, Brazil)
2015 Oct. 01.95 UT: m1=6.6, Dia.=10′, DC=4; 7×50 B; Marco Antonio Coelho Goiato (Araçatuba, Brazil) [Clouds]
2015 Oct. 01.94 UT: m1=6.7, Dia.=8′, DC=5, Tail=20 arcmin in PA:135 deg.; 20×100 B; Marco Antonio Coelho Goiato (Araçatuba, Brazil) [Clouds]
2015 Oct. 01.42 UT: m1=6.6, Dia.=4, DC=5, Tail= 0.2 degrees in PA: 130 degrees; 25×100 B; David A. J. Seargent (Cowra, NSW, Australia)
2015 Sep. 22.42 UT: m1=7.2, Dia.=4.2’, DC=6; 25-cm L f:5 (39x); Chris Wyatt (Walcha, NSW, Australia) [Moonlight; Tail visible 58’ in length in P.A. 128°; Outer coma diffuse, inner coma opaque pale aqua-blue in colour, enhances strongly in Swan Band filter. First 14’ of tail also enhances slightly in Swan Band filter]
2015 Sep. 19.95 UT: m1=6.3, Dia.=12′, DC=3; 7×50 B; Marco Antonio Coelho Goiato (Araçatuba, Brazil) [Moonlight]
2015 Sep. 16.96 UT: m1=6.2, Dia.=15′, DC=4; 7×50 B; Marco Antonio Coelho Goiato (Araçatuba, Brazil)
2015 Sep. 16.94 UT: m1=6.5, Dia.=8´, DC=3; 15×70 B; Willian Souza (Sao Paulo, Brazil)
2015 Sep. 16.55 UT: m1=7.2: 25×100 B; David A. J. Seargent (Cowra, NSW, Australia)
2015 Sep. 16.40 UT: m1=7.1, Dia.=6.3’, DC=4; 11×70 B; Chris Wyatt (Walcha, NSW, Australia] [Coma close to bright stars; Coma pale aqua-blue in colour, faint outer coma, bright opaque inner coma, moderately condensed. Short faint tail visible, approximately 9.3’ in length in P.A. 124°]
2015 Sep. 15.92 UT: m1=6.7, Dia.=8′, DC=4; 10×50 B; Alexandre Amorim (Florianopolis, Brazil) [wind interference]
2015 Sep. 14.97 UT: m1=6.3, Dia.=6´, DC=4; 25-cm L f/4.5 (67x); A. Gonzalo Vargas (Cochabamba Bolivia) [Cola longitud 9´ de largo dirección AP: 97 a 113 grados aprox. Excelente calidad de cielo con magnitud visual límite de estrellas de magnitud 5.5 aprox.]
2015 Sep. 14.95 UT: m1=6.6:, Dia.=8′, DC=4; 10×50 B; Alexandre Amorim (Florianopolis, Brazil) [close to TYC 8284-3202-1]
2015 Sep. 14.94 UT: m1=6.3, Dia.=15′, DC=4; 7×50 B; Marco Antonio Coelho Goiato (Araçatuba, Brazil)
2015 Sep. 13.465 UT: m1=7.2, Dia.=6’, DC=3; 10×50 B; Rob Kaufman (Bright, Victoria, Australia) [Coma brightens towards middle, no defined central condensation visible. Tail 8 arcminutes in PA: 125 deg.]
2015 Sep. 12.97 UT: m1=6.0, Dia.=10’, DC=3, Cola: no visible; 10.5-cm MCT (45x); Alberto Anunziato (Paraná, Argentina)
2015 Sep. 12.94 UT: m1=6.6, Dia.=10′, DC=4; 10×50 B; Alexandre Amorim (Florianopolis, Brazil)
2015 Sep. 12.00 UT: m1=6.5, Dia.=8′, DC=4; 10×50 B; Alexandre Amorim (Florianopolis, Brazil)
2015 Sep. 11.37 UT: m1=7.1, Dia.=11.5’, DC=4; 11×70 B; Chris Wyatt (Walcha, NSW, Australia) [Coma very diffuse, faint outer coma, broad moderately condensed centre, pale aqua-blue in colour. Faint tail visible, approximately 12’ in length in P.A. 121°. Observing site altitude 1250m, limiting magnitude in vicinity of comet = +6.3]
2015 Sep. 10.47 UT: m1=6.8, Dia.=6, DC=5, Tail= 0.3 deg. PA: 120 deg.: 25×100 B; David A. J. Seargent (Cowra, NSW, Australia)
2015 Sep. 09.99 UT: m1=6.4, Dia.=5´, DC=4; 25-cm L f/4.5 (67x); A. Gonzalo Vargas (Cochabamba Bolivia) [Usando filtro SkyGlow para contrarrestar contaminación luminosa se aprecia claramente la cola de unos 10 minutos de arco en longitud en un ángulo AP entre 117 a 120 grados. Calidad de cielo buena imagen estable.]
2015 Sep. 09.98 UT: m1=6.4, Dia.=8′, DC=3; 15×70 B; Willian Souza (Sao Paulo, Brazil)
2015 Sep. 09.91 UT: m1=6.4, Dia.=8′, DC=4; 10×50 B; Alexandre Amorim (Florianopolis, Brazil)
2015 Sep. 08.108 UT: m1=5.9, Dia.=5.7′, DC=4, Tail= 1.13 deg. in PA: 114 deg.; 13cm R (26x); Diego H. Massat (Reconquista, Argentina) [Bruma baja debido a polvillo en el ambiente]
2015 Sep. 06.53 UT: m1=6.7, Tail= 0.5 degrees PA: 118 deg.: 25×100 B; David A. J. Seargent (Cowra, NSW, Australia)
2015 Sep. 06.09 UT: m1=6.2, Dia.=12’, DC=4, Tail= no visible; 25-cm SCT (40x); Alberto Anunziato (Oro Verde, Argentina)
2015 Sep. 05.906 UT: m1=6.9, Dia.=1.5’, DC=1, Tail= 20 arcsec. in PA: 30 deg.; 12cm L f/5.8 (70x); José Recioy (Observatorio Eta Carinae, Villa Serrana, Dpto. de Lavalleja, Uruguay)
2015 Sep. 05.035 UT: m1=6.1, Dia.=3.0′, DC=3, Tail= 12.0 arcmin.; 13-cm L (26x); Diego H. Massat (Reconquista, Argentina)
2015 Sep. 04.00 UT: m1=6.4, Dia.=10′, DC=3; 10×50 B; Alexandre Amorim (Florianopolis, Brazil)
2015 Sep. 02.94 UT: m1=6.3, Dia.=15′, DC=4; 7×50 B; Marco Antonio Coelho Goiato (Araçatuba, Brazil)
2015 Sep. 02.00 UT: m1=6.3, Dia.=15′, DC=3/; 7×50 B; Marco Antonio Coelho Goiato (Araçatuba, Brazil)
2015 Aug. 31.92 UT: m1=6.5, Dia.=10′, DC=3; 10×50 B; Alexandre Amorim (Florianopolis, Brazil)
2015 Aug. 30.94 UT: m1=6.6, Dia.=10′, DC=3; 11.4cm L f/4 (22x); Willian Souza (Sao Paulo, Brazil)
2015 Aug. 30.93 UT: m1=6.6, Dia.=10′, DC=3/; 10cm R f/5 (25x); Willian Souza (Sao Paulo, Brazil)
2015 Aug. 30.93 UT: m1=6.5, Dia.=10′, DC=3; 10×50 B; Alexandre Amorim (Florianopolis, Brazil)
2015 Aug. 30.93 UT: m1=6.4, Dia.=15′, DC=3/; 7×50 B; Marco Antonio Coelho Goiato (Araçatuba, Brazil)
2015 Aug. 30.92 UT: m1=6.5, Dia.=10′, DC=4; 15×70 B; Willian Souza (Sao Paulo, Brazil)
2015 Aug. 29.92 UT: m1=6.5, Dia.=8′, DC=3/; 15×70 B; Willian Souza (Sao Paulo, Brazil)
2015 Aug. 28.94 UT: m1=6.4, Dia.=15′, DC=3; 7×50 B; Marco Antonio Coelho Goiato (Araçatuba, Brazil) [Moonlight]
2015 Aug. 28.93 UT: m1=6.5, Dia.=10′, DC=4; 20×100 B; Marco Antonio Coelho Goiato (Araçatuba, Brazil) [Moonlight]
2015 Aug. 28.92 UT: m1=6.5, Dia.=8′, DC=3/; 15×70 B; Willian Souza (Sao Paulo, Brazil)
2015 Aug. 28.91 UT: m1=6.8:, Dia.=7′, DC=3/; 7cm R (28x); Alexandre Amorim (Florianopolis, Brazil) [moonlight]
2015 Aug. 27.99 UT: m1=6.5, Dia.=10′, DC=2; 5cm R (25x); Alexandre Amorim (Florianopolis, Brazil)[moonlight]
2015 Aug. 26.96 UT: m1=6.5, Dia.=10′, DC=3/; 15×70 B; Willian Souza (Sao Paulo, Brazil) [Moonlight interference]
2015 Aug. 26.94 UT: m1=6.6, Dia.=10′, DC=3; 10cm R f/5 (25x); Willian Souza (Sao Paulo, Brazil) [Moonlight interference]
2015 Aug. 24.18 UT: m1=6.5, Dia.=10′, DC=3; 7×50 B; Marco Antonio Coelho Goiato (Araçatuba, Brazil) [IL]
2015 Aug. 24.17 UT: m1=6.6, Dia.=8′, DC=3/; 20×100 B; Marco Antonio Coelho Goiato (Araçatuba, Brazil) [IL]
2015 Aug. 23.08 UT: m1=6.7, Dia.=8’, DC=4, Tail: no visible; 25-cm SCT (40x); Alberto Anunziato (Oro Verde, Argentina)
2015 Aug. 22.90 UT: m1=6.6, Dia.=7′, DC=4; 10×50 B; Alexandre Amorim (Florianopolis, Brazil)[moonlight, nebulosity]
2015 Aug. 22.465 UT: m1=7.4, Dia.=8’, DC=4; 11.4-cm L f8 (43x); Rob Kaufman (Bright, Victoria, Australia) [Very faint outer coma, brighter inner coma with small bright central condensation visible in averted vision.  Very faint, short broad tail appeared to extend roughly easterly but difficult to assign P.A. with any accuracy.  Moonlight interference]
2015 Aug. 21.11 UT: m1=6.6, Dia.=14′, DC=4; 7×50 B; Marco Antonio Coelho Goiato (Araçatuba, Brazil)
2015 Aug. 20.12 UT: m1=6.8, Dia.=10′, DC=4/, Tail=1º in PA: 75º; 20×100 B; Marco Antonio Coelho Goiato (Araçatuba, Brazil)
2015 Aug. 20.11 UT: m1=6.6, Dia.=15′, DC=4; 7×50 B; Marco Antonio Coelho Goiato (Araçatuba, Brazil)
2015 Aug. 19.92 UT: m1=6.7, Dia.=8′, DC=3; 10×50 B; Alexandre Amorim (Florianopolis, Brazil)[moonlight]
2015 Aug. 19.92 UT: m1=6.8, Dia.=10′, DC=3; 10cm R f/5 (25x); Willian Souza (Sao Paulo, Brazil)
2015 Aug. 18.99 UT: m1=6.9, Dia.=10′, DC=3; 11.4cm L f/4 (25x); Willian Souza (Sao Paulo, Brazil)
2015 Aug. 18.98 UT: m1=6.8, Dia.=10′, DC=3; 10cm R f/5 (25x) Willian Souza (Sao Paulo, Brazil)
2015 Aug. 18.97 UT: m1=6.6, Dia.=6.5′, DC=5, Tail= 10 arcmin. PA: 70-75 deg.; 25-cm L f/4.5 (67x); A. Gonzalo Vargas (Cochabamba Bolivia)
2015 Aug. 18.66 UT: m2=11.0 CCD, Dia.=&10.1′, Tail=&19′ in PA: 81 deg.; [T31] 0.50-m f/6.8 astrograph + CCD + focal reducer; A. Novichonok & T. Prystavski (iTelescope observatory, Q62 remotely from Siding Spring, Australia)
2015 Aug. 18.38 UT: m1=7.2, Dia.=13.6’, DC=4; 7×50 B; Chris Wyatt (Walcha, NSW, Australia) [Slight Moonlight interference; Short tail visible, 16’ in length with centreline position in P.A. 062° approximately, outer coma very diffuse and transparent with a semi-transparent inner coma brightening to a moderately condensed centre. Centre of coma enhances well in Swan Band filter. Through 10” f/5 dob @ x39 the ion tail traces out to 22’ in length in P.A. 082°, diameter around 7.7’ and a DC of 6, inner coma enhances well in Swan Band filter. The dust tail is very broad and difficult to determine centreline direction of symmetry]
2015 Aug. 17.12 UT: m1=6.7, Dia.=14′, DC=3/; 7×50 B; Marco Antonio Coelho Goiato (Araçatuba, Brazil)
2015 Aug. 17.08 UT: m1=6.8, Dia.=10′, DC=3; 15×70 B; Willian Souza (Campinas, Brazil)
2015 Aug. 16.02 UT: m1=6.8, Dia.=15′, DC=4, Tail= 0.5 deg.; 10-cm R f/5 (27x); Willian Souza (Campinas, Brazil) [significant improvement when using comet filter]
2015 Aug. 16.01 UT: m1=6.7, Dia.=15′, DC=4; 7×50 B; Willian Souza (Campinas, Brazil)
2015 Aug. 15.94 UT: m1=6.7, Dia.=14′, DC=4; 7×50 B; Marco Antonio Coelho Goiato (Araçatuba, Brazil)
2015 Aug. 15.50 UT: m1=7.1; 6×35 B; David A. J. Seargent (Cowra, NSW, Australia)
2015 Aug. 15.50 UT: m1=-.-, Dia.=4′, Tail= 0.2 degrees PA: 55 deg.; 25×100 B; David A. J. Seargent (Cowra, NSW, Australia)
2015 Aug. 15.00 UT: m1=6.8, Dia.=12′, DC=4; 7×50 B; Marco Antonio Coelho Goiato (Araçatuba, Brazil)
2015 Aug. 14.93 UT: m1=6.7, Dia.=9′, DC=3; 10×50 B; Alexandre Amorim (Florianopolis, Brazil)
2015 Aug. 13.94 UT: m1=6.8, Dia.=12′, DC=4; 7×50 B; Marco Antonio Coelho Goiato (Araçatuba, Brazil)
2015 Aug. 13.92 UT: m1=7.0, Dia.=7′, DC=3; 7cm R (22x); Alexandre Amorim (Florianopolis, Brazil)[close to TYC 9317-1070-1]
2015 Aug. 13.77 UT: m1=7.1, Dia.=11.4’, DC=4; 7×50 B; Chris Wyatt (Walcha, NSW, Australia) [Coma diffuse, slightly brighter and moderately condensed centre, slight enhancement in Swan Band filter. No tail]
2015 Aug. 13.09 UT: m1=7.1, Dia.= 5′, DC=3; 8-cm f/7.5 L (26x); Willian Souza (Sao Paulo, Brazil)
2015 Aug. 13.08 UT: m1=7.0, Dia.=5′, DC=3; 15×70 B; Willian Souza (Sao Paulo, Brazil)
2015 Aug. 13.04 UT: m1=6.8, Dia.=12′, DC=4; 7×50 B; Marco Antonio Coelho Goiato (Araçatuba, Brazil)
2015 Aug. 12.94 UT: m1=7.0, Dia.=7′, DC=3; 7cm R (22x); Alexandre Amorim (Florianopolis, Brazil)
2015 Aug. 12.22 UT: m1=7.0, Dia.=8′, DC=4/; Tail= 40 arcmin in PA: 15º; 20×100 B; Marco Antonio Coelho Goiato (Araçatuba, Brazil)
2015 Aug. 12.21 UT: m1=6.9, Dia.=12′, DC=4; 7×50 B; Marco Antonio Coelho Goiato (Araçatuba, Brazil)
2015 Aug. 11.04 UT: m1=6.9, Dia.=14′, DC=4; 7×50 B; Marco Antonio Coelho Goiato (Araçatuba, Brazil)
2015 Aug. 10.96 UT: m1=7.0, Dia.=6′, DC=3; 7cm R (22x); Alexandre Amorim (Florianopolis, Brazil)
2015 Aug. 10.00 UT: m1=7.0, Dia.=12′, DC=4; 7×50 B; Marco Antonio Coelho Goiato (Araçatuba, Brazil)
2015 Aug. 08.52 UT: m1=6.9; 10×50 B; David A. J. Seargent (Cowra, NSW, Australia)
2015 Aug. 08.04 UT: m1=7.0, Dia.=12′, DC=4; 7×50 B; Marco Antonio Coelho Goiato (Araçatuba, Brazil)
2015 Aug. 07.39 UT: m1=7.3, Dia.=10.5’, DC=4; 7×50 B; Chris Wyatt (Walcha, NSW, Australia) [Coma dims slightly using Swan Band filter with the centre slightly enhancing. Coma elongated to the North. Magnitude 9.5 star in coma 5’ away from centre in P.A. 179°. Tail not visible in 7×50 B’s but visible in the 10” f/5 dob at x39, semi-transparent and 13.5’ in length in P.A. 350°, 10’ in width at its extremity, 3.8’ diameter coma with a DC of 6]
2015 Aug. 07.10 UT: m1=7.2, Dia.=5′, DC=3; 8-cm R f/7.5 (33x); Willian Souza (Sao Paulo, Brazil)
2015 Aug. 07.08 UT: m1=7.1, Dia.=12′, DC=4; 7×50 B; Marco Antonio Coelho Goiato (Araçatuba, Brazil)
2015 Aug. 07.00 UT: m1=7.2, Dia.=5′, DC=2; 7cm R (22x); Alexandre Amorim (Florianopolis, Brazil)
2015 Aug. 07.00 UT: m1=7.6, Dia.=6´, DC=5, Tail= 13 arcmin PA: 330 deg.; 25-cm L f/4.5 (67x); A. Gonzalo Vargas (Cochabamba Bolivia)
2015 Aug. 06.08 UT: m1=7.1, Dia.=12′, DC=4; 7×50 B; Marco Antonio Coelho Goiato (Araçatuba, Brazil)
2015 Aug. 05.12 UT: m1=7.5:; 10×50 B; Alexandre Amorim (Florianopolis, Brazil) [very close to TYC9324-1415-1]
2015 Aug. 05.10 UT: m1=7.3, Dia.=5′, DC=4; 8-cm R f/7.5 (33x); Willian Souza (Sao Paulo, Brazil)
2015 Aug. 05.06 UT: m1=7.1:, Dia.=10′, DC=4; 7×50 B; Marco Antonio Coelho Goiato (Araçatuba, Brazil) [Comet very near a star with m1: 7.05]
2015 Aug. 04.02 UT: m1=7.2, Dia.=10′, DC=4; 7×50 B; Marco Antonio Coelho Goiato (Araçatuba, Brazil)
2015 Aug. 02.98 UT: m1=7.3, Dia.=8′, DC=4; 7×50 B; Marco Antonio Coelho Goiato (Araçatuba, Brazil)
2015 Aug. 02.21 UT: m1=7.4, Dia.=8′, DC=4/; 20×100 B; Marco Antonio Coelho Goiato (Araçatuba, Brazil) [ Moonlight ]
2015 Aug. 02.19 UT: m1=7.7, Dia.=4’, DC=3, Cola: no visible; 25-cm SCT (40x); Alberto Anunziato (Oro Verde, Argentina)
2015 July 27.10 UT: m1=8.2, Dia.=3′, DC=4; 7-cm R (22x); Alexandre Amorim (Florianopolis, Brazil) [moonlight]
2015 July 27.09 UT: m1=8.2, Dia.=3′, DC=4; 8-cm R f/7.5 (26x); Willian Souza (Sao Paulo, Brazil)
2015 July 26.25 UT: m1=7.9, Dia.=8′, DC=4; 7×50 B; Marco Antonio Coelho Goiato (Araçatuba, Brazil)
2015 July 26.24 UT: m1=8.0, Dia.=7′, DC=4/; 20×100 B; Marco Antonio Coelho Goiato (Araçatuba, Brazil)
2015 July 26.11 UT: m1=8.2, Dia.=4′, DC=6; 10×50 B; Alexandre Amorim (Florianopolis, Brazil) [moonlight, close to TYC 8834-859-1]
2015 July 24.20 UT: m1=8.0, Dia.=8′, DC=4; 7×50 B; Marco Antonio Coelho Goiato (Araçatuba, Brazil)
2015 July 24.19 UT: m1=8.1, Dia.=7′, DC=4/; 20×100 B; Marco Antonio Coelho Goiato (Araçatuba, Brazil)
2015 July 22.22 UT: m1=8.5, Dia.=7′, DC=4; 10×50 B; Alexandre Amorim (Florianopolis, Brazil)
2015 July 21.20 UT: m1=8.8, Dia.=4’, DC=5; 25-cm SCT (40x); Alberto Anunziato (Oro Verde, Argentina) [coma elongada en una muy difusa cola]
2015 July 20.82 UT: m2=11.6 CCD, Dia.=&10.7′ Tails=&5.7′ in PA: 340 deg. (dust); &30′ in PA: 288 deg. (ion); [T12] 0.11m f/5.0 refractor + CCD; A. Novichonok & T. Prystavski (iTelescope observatory, Q62 remotely from Siding Spring, Australia)
2015 July 17.14 UT: m1=9.4, Dia.=3.6´, DC=4; 25-cm L f/4.5 (67x);  A. Gonzalo Vargas  (Cochabamba Bolivia) [Coma elongada en dirección AP: 275 grados]
2015 July 16.55 UT: m1=9.0, Dia.=4.0′, DC=5, Tail=6′ in PA: 300˚; 41-cm L f/4.5 (64x); John Drummond (Gisborne, New Zealand) [Comet easy to see with 41cm. Elongated coma with faint tail. Comet 57 degrees altitude in the SE. Clear, dark rural sky, LM 6.5]
2015 July 14.17 UT: m1=9.0, Dia.=5′, DC=4/; 20×100 B; Marco Antonio Coelho Goiato (Araçatuba, Brazil)
2015 July 13.59 UT: m1=9.6, Dia.=2.5′, DC=6; 13-cm L; Stephen McCann (Waikoloa, Hawaii, USA) [quite stellar in appearance with no tail]
2015 July 12.29 UT: m1=9.1, Dia.=5′, DC=4/; 20×100 B; Marco Antonio Coelho Goiato (Araçatuba, Brazil)
2015 July 11.25 UT: m1=9.2, Dia.=5′, DC=4; 20×100 B; Marco Antonio Coelho Goiato (Araçatuba, Brazil)
2015 July 10.23 UT: m1=9.4, Dia.=4′, DC=5; 22-cm L (60x); Marco Antonio Coelho Goiato (Araçatuba, Brazil)
2015 July 08.53 UT: m1=9.6, Dia.=3′, DC=5; 25×100 B; David A. J. Seargent (Cowra, NSW, Australia)
2015 July 07.55 UT: m1=10.1, Dia.=3.0′, DC=5/; 30-cm f/5 Dobson 25mm; Con Stoitsis (Nagambie, Australia) [Coma elongated PA: 258. Coma not quite stellar in appearance, and more defussed towards the edges. I couldn’t make out a tail?]
2015 July 07.50 UT: m1=9.6, Dia.=3.6’, DC=6; 25cm L f:5 (39x); Chris Wyatt (Walcha, NSW, Australia) [Coma dims in Swan Band filter but centre of coma and central condensation still visible. Coma elongated in P.A. 262° (ion tail forming) and also in P.A. 331° (dust tail?), best visible at x83 magnification. Outer coma diffuse and transparent, brightens to an opaque inner coma with a small stellar central condensation. Low altitude = 13.3°]
2015 July 05.22 UT: m1=9.8, Dia.=3’, DC=2, Tail= no visible; 25-cm SCT (62x); Alberto Anunziato (Oro Verde, Argentina)
2015 June 29.22 UT: m1=10.0, Dia.=3′, DC=4/; 22-cm L (60x); Marco Antonio Coelho Goiato (Araçatuba, Brazil) [Moonlight]
2015 June 28.37 UT: m1=10.0, DC=3; 18-cm L (57x); Alexandre Amorim (Florianopolis, Brazil)
2015 June 27.75 UT: m1=10.0, Dia.=3.3’, DC=5/; 25cm L f:5 (39x); Chris Wyatt (Walcha, NSW, Australia) [Coma dims slightly using Swan Band filter. Borad fan-like extension to the West approximately. Bright opaque inner coma, sometimes stellar in good seeing, pale-blue in colour. Outer coma transparent and faint]
2015 June 27.74 UT: m1=10.4:, Dia.=4’, DC=5/; 25cm L f:5 (39x); Chris Wyatt (Walcha, NSW, Australia) [Coma elongated to the West approximately; Magnitude uncertain due to cloud interference]
2015 June 27.37 UT: m1=9.9, Dia.=3′, DC=4; 18-cm L (57x); Alexandre Amorim (Florianopolis, Brazil)
2015 June 26.22 UT: m1=10.2, Dia.=3′, DC=5; 22-cm L (60x); Marco Antonio Coelho Goiato (Araçatuba, Brazil) [Enhancement with Swan band filter]
2015 June 22.77 UT: m1=10.3, Dia.=2.0′, DC=5; 40.6-cm L f/4 (76x); Paul Camilleri (Warners Bay, Australia)
2015 June 22.76 UT: m1=10.2, Dia.=3.5’, DC=6; 25cm L f:5 (39x); Chris Wyatt (Walcha, NSW, Australia) [Coma elongated to the West; Small bright central condensation whitish in colour, opaque inner coma. Coma dims, especially the centre, with Swan Band filter. Appears in same field as galaxy NGC 7793 22’ away in PA: 171°]
2015 June 22.21 UT: m1=10.3, Dia.=2.5′, DC=5; 22-cm L (60X); Marco Antonio Coelho Goiato (Araçatuba, Brazil)
2015 June 21.80 UT: m1=10.3, Dia.=2.0′, DC=5; 40.6-cm L f/4 (76x); Paul Camilleri (Warners Bay, Australia)
2015 June 21.22 UT: m1=10.0, Dia.=2.5’, DC=3, Cola: no; 25-cm SCT (40x); Alberto Anunziato (Oro Verde, Argentina)
2015 June 20.23 UT: m1=10.5, Dia.=2.5′, DC=5; 22-cm L (60X); Marco Antonio Coelho Goiato (Araçatuba, Brazil) [Little enhancement with Swan band filter]
2015 June 19.642 UT: m1=10.5, Dia.=1.5’, DC=5; 11.4-cm L f8 (43x); Rob Kaufman (Bright, Victoria, Australia] [Small and moderately condensed. Method= M]
2015 June 19.61 UT: m1=10.6, Dia.=3.9’, DC=6; 25cm L f:5 (39x); Chris Wyatt (Walcha, NSW, Australia) [Coma elongated to the SW; Bright stellar central condensation, inner coma opaque and fading to transparent outer coma. Dims using Swan Band filter]
2015 June 17.79 UT: m1=10.4, Dia.=1.8′, DC=5; 40.6-cm L f/4 (76x); Paul Camilleri (Warners Bay, Australia)
2015 June 14.80 UT: m1=10.7, Dia.=1.8′, DC=5; 40.6-cm L f/4 (76x); Paul Camilleri (Warners Bay, Australia)
2015 June 13.83 UT: m1=10.8: CCD Dia.=2.2′; [T31] 0.50-m f/6.8 astrograph + CCD + focal reducer; A. Novichonok & T. Prystavski (iTelescope observatory, Q62 remotely from Siding Spring, Australia)
2015 June 13.29 UT: m1=10.6, Dia.=2′, DC=4/; 22-cm L (60X); Marco Antonio Coelho Goiato (Araçatuba, Brazil) [Little or no enhancement with Swan band filter]
2015 June 08.79 UT: m1=11.3, Dia.=1.6′, DC=4; 40.6-cm L f/4 (76x); Paul Camilleri (Warners Bay, Australia)
2015 June 07.27 UT: m1=10.9, Dia.=2′, DC=4/; 22-cm L (60X); Marco Antonio Coelho Goiato (Araçatuba, Brazil) [Moonlight]
2015 June 06.80 UT: m1=11.5, Dia.=1.3′, DC=4; 40.6-cm L f/4 (76x); Paul Camilleri (Warners Bay, Australia)
2015 June 05.76 UT: m1=11.6, Dia.=1.3′, DC=4; 40.6-cm L f/4 (76x); Paul Camilleri (Warners Bay, Australia)
2015 June 04.75 UT: m1=11.8, Dia.=0.9’, DC=4; 25cm L f:5 (83x); Chris Wyatt (Walcha, NSW, Australia) [Moonlight; Close to mag 11.3 star, coma diffuse with brighter inner coma, moderately condensed centre, no tail]
2015 June 03.77 UT: m1=11.4, Dia.=1.4′, DC=4; 40.6-cm L f/4 (76x); Paul Camilleri (Warners Bay, Australia)
2015 June 02.75 UT: m1=11.6, Dia.=1.4′, DC=4; 40.6-cm L f/4 (76x); Paul Camilleri (Warners Bay, Australia)
2015 June 01.79 UT: m1=11.4, Dia.=1.5′, DC=4; 40.6-cm L f/4 (76x); Paul Camilleri (Warners Bay, Australia)
2015 June 01.75 UT: m1=11.6, Dia.=1.1’, DC=4; 25cm L f:5 (83x); Chris Wyatt (Walcha, NSW, Australia) [Moonlight; Outer coma enhances slightly in Swan Band filter but otherwise does not enhance overall; diffuse outer coma brightening to an opaque, weakly condensed inner coma. No tail]
2015 May  31.76 UT: m1=11.4, Dia.=1.6′, DC=4; 40.6-cm L f/4 (76x); Paul Camilleri (Warners Bay, Australia)
2015 May  25.78 UT: m1=11.6, Dia.=1.3′, DC=4; 40.6-cm L f/4 (76x); Paul Camilleri (Warners Bay, Australia)
2015 May  24.33 UT: m1=11.0:, Dia.=1.5′, DC=4/; 22-cm L (160X); Marco Antonio Coelho Goiato (Araçatuba, Brazil) [Very near a star with m1: 9.08, no enhancement with Swan band filter]
2015 May  14.74 UT: m1=12.3, Dia.=1’, DC=6; 25cm L f:5 (83x); Chris Wyatt (Walcha, NSW, Australia) [Moonlight; Coma diffuse, gradually brightening to opaque inner coma and a faint stellar central condensation. Also visible at x39 but not easily able to do observation due to faint stars nearby. Coma appears slightly elongated to the NW approximately, does not enhance in Swan Band filter]
2015 May  13.79 UT: m1=11.6, Dia.=1.2′, DC=4; 40.6-cm L f/4 (76x); Paul Camilleri (Warners Bay, Australia)
2015 May  12.79 UT: m1=11.4, Dia.=1.3′, DC=4; 40.6-cm L f/4 (165x); Paul Camilleri (Warners Bay, Australia)
2015 May  11.80 UT: m1=11.6, Dia.=1.3′, DC=4; 40.6-cm L f/4 (165x); Paul Camilleri (Warners Bay, Australia)
2015 May  10.80 UT: m1=11.4, Dia.=1.5′, DC=4; 40.6cm L f/4 (165x); Paul Camilleri (Warners Bay, NSW, Australia)
2015 May  09.79 UT: m1=11.7, Dia.=1.2′, DC=4; 40.6cm L f/4 (165x); Paul Camilleri (Warners Bay, NSW, Australia)
2015 May  08.78 UT: m1=11.8, Dia.=1.2′, DC=3/; 40.6cm L f/4 (165x); Paul Camilleri (Warners Bay, NSW, Australia)
2015 May  08.75 UT: m1=12.2, Dia.=1.0’, DC=4; 25cm L f:5 (83x); Chris Wyatt (Walcha, NSW, Australia) [Moonlight; Coma diffuse with slightly brighter central condensation; no tail. Does not enhance in Swan Band filter]
2015 May  07.81 UT: m1=11.8, Dia.=1.2′, DC=3; 40.6cm L f/4 (165x); Paul Camilleri (Warners Bay, NSW, Australia)
2015 May  06.75 UT: m1=11.9 , Dia.=1.1’, DC=3; 25cm L f:5 (83x); Chris Wyatt (Walcha, NSW, Australia) [Moonlight; Coma diffuse with slightly brighter but weakly condensed centre; No tail. Improved seeing conditions made it much easier to see than my previous observation]
2015 May  05.73 UT: m1=12.1:, Dia.=1’, DC=3/; 25cm L f:5 (83x); Chris Wyatt (Walcha, NSW, Australia) [Moonlight; Very difficult, magnitude uncertain due to moonlight. Visible in good seeing; no tail. Coma shows as a faint smudge with a slightly brighter centre. Outer coma washed out by moonlight into background sky. Observed over a 40 minute period, does not enhance in Swan Band filter]
2015 May  01.34 UT: m1=12.2, Dia.=2′, DC=4/; 22-cm L (160x); Marco Antonio Coelho Goiato (Araçatuba, Brazil) [Not enhanced with Swan band filter]
2015 Apr. 27.73 UT: m1=12.6, Dia.=1’, DC=4/; 25cm L f:5 (83x); Chris Wyatt (Walcha, NSW, Australia) [Coma small and diffuse with a slightly brighter, moderately condensed centre. Does not enhance in Swan Band filter; No tail]
2015 Abr. 26.78 UT: m1=12.8, Dia.=1.2′, DC=4; 40.6cm L f/4 (165x); Paul Camilleri (Warners Bay, NSW, Australia)
2015 Abr. 25.78 UT: m1=12.8, Dia.=1.2′, DC=4; 40.6cm L f/4 (165x); Paul Camilleri (Warners Bay, NSW, Australia)
2015 Apr. 24.79 UT: m1=12.4 CCD, Dia.=1.0′; [T17] 0.43-m f/6.8 astrograph + CCD; A. Novichonok & T. Prystavski (iTelescope observatory, Q62 remotely Siding Spring, Australia)
2015 Apr. 19.82 UT: m2=12.7 CCD, Dia.=0.5′, DC=8; Canon 60Da + Sigma lens; Michael Mattiazzo (Swan Hill, Victoria, Australia) [White in appearance – very dusty object. Since this comet is dynamically new, I predict a peak magnitude of 6.0 in Dec15-Jan16, with a brightening rate of n=3]
2015 Apr. 15.77 UT: m1=13.1, Dia.=0.8’, DC=3/; 25cm L f:5 (83x); Chris Wyatt (Walcha, NSW, Australia) [Moonlight; Coma edges diffuse, moderately condensed centre, does not enhance in Swan Band filter]
2015 Apr. 12.80 UT: m1=12.6: CCD Dia.=&0.8′; [T31] 0.50-m f/6.8 astrograph + CCD + focal reducer; A. Novichonok & T. Prystavski (iTelescope observatory, Q62 remotely from Siding Spring, Australia) [interference by Moon: Moon phase 0.43, altitude 63 deg.]
2015 Jan. 08.42 UT: m1=13.6: CCD, Dia.=&0.6′; [T31] 0.50-m f/6.8 astrograph + CCD + focal reducer; A. Novichonok & T. Prystavski (iTelescope observatory, Q62 remotely from Siding Spring, Australia) [in the evening twilight]

C/2013 U2 (Holvorcem) ( observaciones)
2015 May  22.90 UT: m1=16.6 CCD + R filter, Dia.=11″, DC=6s, Tail=3′ in PA: 327 deg.; 70-cm f/4 L + CCD; Alexander Baransky (Kyiv comet station MPC 585, Ukraine)
2015 May  12.94 UT: m1=15.7 CCD + R filter, Dia.=14″, DC=4, Tail=42″ in PA: 321 deg.; 70-cm f/4 L + CCD; Alexander Baransky (Kyiv comet station MPC 585, Ukraine)

C/2013 TW5 (Spacewatch) ( observaciones)
2015 June 14.44 UT: m1=16.5: CCD Dia.=&0.4′; [T31] 0.50-m f/6.8 astrograph + CCD + focal reducer; A. Novichonok & T. Prystavski (iTelescope observatory, Q62 remotely from Siding Spring, Australia)
2015 Apr. 14.39 UT: m1=15.7 CCD, Dia.=0.5′, Tail=&3.7′ in PA 307 deg; [T9] 0.32-m f/7.4 Ritchey-Chretien + CCD; A. Novichonok & T. Prystavski (iTelescope observatory, Q62 remotely from Siding Spring, Australia)

C/2013 R1 (Lovejoy) ( observaciones)
2015 Aug. 05.54 UT: m1=10.3 DSLR, Dia.=4.2′; 180mm f/2.8 lens + Nikon D5100 Digital camera G plane; Katsumi Yoshimoto (Yamaguchi, Japan)
2015 Aug. 03.51 UT: m1=10.1 DSLR, Dia.=4.2′; 180mm f/2.8 lens + Nikon D5100 Digital camera G plane; Katsumi Yoshimoto (Yamaguchi, Japan)
2015 Aug. 02.52 UT: m1=10.2 DSLR, Dia.=3.8′; 180mm f/2.8 lens + Nikon D5100 Digital camera G plane; Katsumi Yoshimoto (Yamaguchi, Japan)

C/2013 G9 (Tenagra) ( observaciones)
2015 Apr. 09.47 UT: m1=15.8 CCD, Dia.=0.3′, Tail=&0.7′ in PA 68 deg; [T17] 0.43-m f/6.8 astrograph + CCD; A. Novichonok & T. Prystavski (iTelescope observatory, Q62 remotely Siding Spring, Australia)
2015 Mar. 16.26 UT: m1=15.3 CCD, Dia.=0.6′, Tail=0.9′ in PA 75 deg; [T20] 0.1-m f/5.0 astrograph + CCD; A. Novichonok & T. Prystavski (iTelescope observatory, H06 remotely from Mayhill, U.S.A.)
2015 Feb. 15.45 UT: m1=16.1 CCD, Dia.=0.5′; [T20] 0.1-m f/5.0 astrograph + CCD; A. Novichonok & T. Prystavski (iTelescope observatory, H06 remotely from Mayhill, U.S.A.)
2015 Jan. 20.50 UT: m1=16.4: CCD, Dia.=&0.2′; [T20] 0.1-m f/5.0 astrograph + CCD; A. Novichonok & T. Prystavski (iTelescope observatory, H06 remotely from Mayhill, U.S.A.)
2015 Jan. 03.74 UT: m1=16.0: CCD, Dia.=0.3′; [T9] 0.32-m f/7.4 Ritchey-Chretien + CCD; A. Novichonok & T. Prystavski (iTelescope observatory, Q62 remotely from Siding Spring, Australia)

C/2013 G3 (PANSTARRS) ( observaciones)
2015 Jan. 20.53 UT: m1=17.7: CCD; [T20] 0.1-m f/5.0 astrograph + CCD; A. Novichonok & T. Prystavski (iTelescope observatory, H06 remotely from Mayhill, U.S.A.)

C/2013 C2 (Tenagra) ( observaciones)
2015 May  11.89 UT: NEGATIVE m1=[15.3; 50.8 cm L (307x); Sandor Szabo (Sopron, Hungary) [Must be fainter than 15.3 mag.]
2015 Mar. 22.29 UT: m1=12.5, Dia.=1.5′, DC=3; 22-cm L (160x); Marco Antonio Coelho Goiato (Araçatuba, Brazil)
2015 Mar. 11.04 UT: m1=11.8, Dia.=1′, DC=4/; 22-cm L (160x); Marco Antonio Coelho Goiato (Araçatuba, Brazil)
2015 Feb. 28.74 UT: m1=15.3: CCD Dia.=0.34′; [T31] 0.50-m f/6.8 astrograph + CCD + focal reducer; A. Novichonok & T. Prystavski (iTelescope observatory, Q62 remotely from Siding Spring, Australia)
2015 Feb. 27.19 UT: m1=14.0:, Dia.=0.25′, DC=7/; 22-cm L (230x); Marco Antonio Coelho Goiato (Araçatuba, Brazil)

C/2013 A1 (Siding Spring) ( observaciones)
2015 July 12.88 UT: m1=16.3: CCD, Dia.=&0.5′ Tail=&1.8′ in PA: 96 deg.; [T16] 0.15-m f/7.3 refractor + CCD; A. Novichonok & T. Prystavski (AstroCamp Observatory, I89 remotely from Nerpio, Spain)
2015 June 05.92 UT: m1=15.7: CCD, Dia.=&0.4′ Tail=&1.6′ in PA: 135 deg.; [T16] 0.15-m f/7.3 refractor + CCD; A. Novichonok & T. Prystavski (AstroCamp Observatory, I89 remotely from Nerpio, Spain)
2015 May  20.97 UT: m1=14.8 CCD + R filter, Dia.=28″, DC=4, Faint tail=2′ in PA: 147 deg.; 70-cm f/4 L + CCD; Alexander Baransky (Kyiv comet station MPC 585, Ukraine) [Tail=curved in CW.]
2015 May  11.95 UT: m1=15.2, Dia.=0.2′, DC=4; 50.8 cm L (307x); Sandor Szabo (Sopron, Hungary)
2015 May  06.03 UT: m1=14.8 CCD + R filter, Dia.=38″, DC=5, Tail=3′ in PA: 118-179 deg.; 70-cm f/4 L + CCD; Alexander Baransky (Kyiv comet station MPC 585, Ukraine) [Tail=curved in CW.]2015 May  10.96 UT: m1=14.6, Dia.=0.9′, DC=4; 35cm L (239x); Jakub Cerny (Senohraby, Czech Republic)
2015 Apr. 21.98 UT: m1=14.9, Dia.=0.8′, DC=4; 40-cm L (200x); Jakub Cerný (Zachotin, Czech Republic) [Relatively easy to see, it is small with very fast movement against star background]
2015 Apr. 17.38 UT: m1=13.3: CCD, Dia.=0.8′, Tail=&7′ in PA 201 deg; [T20] 0.1-m f/5.0 astrograph + CCD; A. Novichonok & T. Prystavski (iTelescope observatory, H06 remotely from Mayhill, U.S.A.)
2015 Apr. 11.06 UT: m1=14.0 CCD + R filter, Dia.=40″, DC 5, Tail=3′ in PA: 160-223 deg.; 70-cm f/4 L + CCD;  Alexander Baransky (Kyiv comet station MPC 585, Ukraine) [Tail curved in CW]
2015 Mar. 30.14 UT: m1=13.5 CCD, Dia.=1′, DC=7; Digital Reflex+0.3m lens; Giuseppe Pappa (Sicily, Italy)
2015 Mar. 28.42 UT: m1=14.6, Dia.=0.3′, DC=6; 40.6 cm L f/4.5 (305x); Todd Augustyniak (Spring Grove, Illinois, USA) [Very faint, small, relatively condensed.  Movement observed over 45 minutes.  Located high in sky at 83 degrees altitude; positioned less than 1/2 degree from M92]
2015 Mar. 28.39 UT: m1=13.5 CCD, Dia.=1.4′, Tail=&9′ in PA 218 deg; [T20] 0.1-m f/5.0 astrograph + CCD; A. Novichonok & T. Prystavski (iTelescope observatory, H06 remotely from Mayhill, U.S.A.)
2015 Mar. 24.11 UT: m1=13.5 CCD + R filter, Dia.=44″, DC 5, Tail=3′ in PA: 250-156 deg.,; 70-cm f/4 L + CCD; Alexander Baransky (Kyiv comet station MPC 585, Ukraine) [Tail strongly curved in CW]
2015 Mar. 18.94 UT: m1=14.7, Dia.=0.5′, DC=4; 50.8 cm L (307x); Sandor Szabo (Sopron, Hungary)
2015 Mar. 17.13 UT: m1=13.8 CCD + R filter, Dia.=40″, DC 5, Tail=4′ in PA: 147-280 deg.; 70-cm f/4 L + CCD; Alexander Baransky (Kyiv comet station MPC 585, Ukraine)
2015 Feb. 16.16 UT: m1=[11.6, Dia.=1.8′; 7.6cm L f/4 (38x); Marek Biely (Brno, Czech Republic) [I confirmed that it is not visible in small telescopes. Fainter than 11.6 mag.]
2015 Feb. 16.15 UT: m1=11.7, Dia.=2′.1, DC=5, 35 cm reflector (107x); Jakub Cerný (Zachotin, Czech Republic)
2015 Feb. 14.18 UT: m1=12.9, Dia.=1.0′, DC=4; 32cm L f/5 (144x); Uwe Pilz (Leipzig, Germany)
2015 Feb. 11.14 UT: m1=13.0 CCD + R filter, Dia.=1’30”, DC 4, Tail=8′ in PA: 293 deg.; 70-cm f/4 L + CCD; Alexander Baransky (Kyiv comet station MPC 585, Ukraine) [Tail strongly curved in CW.]
2015 Feb. 10.47 UT: m1=11.4: CCD, Dia.=&3.1′, Tail=&4.0′ in PA 129 deg; [T20] 0.1-m f/5.0 astrograph + CCD; A. Novichonok, T. Prystavski, N. Teymurov (iTelescope observatory, H06 remotely from Mayhill, U.S.A.)
2015 Jan. 24.11 UT: m1=10.9: CCD, Dia.=&3.4′, Tail=&14.0′ in PA 131 deg; 0.3-m f/1.5 astrograph + CCD; G. Borisov & T. Prystavski (MARGO – MPC L51, Crimea-Nauchnij)
2015 Jan. 20.52 UT: m1=10.9: CCD, Dia.=2.4′ Tail=&12′ in PA 128 deg; [T20] 0.1-m f/5.0 astrograph + CCD; A. Novichonok & T. Prystavski (iTelescope observatory, H06 remotely from Mayhill, U.S.A.)
2015 Jan. 19.54 UT: m1=10.9: CCD, Dia.=2.4′ Tail=&12.8′ in PA 131 deg; [T20] 0.1-m f/5.0 astrograph + CCD; A. Novichonok & T. Prystavski (iTelescope observatory, H06 remotely from Mayhill, U.S.A.)

C/2012 X1 (LINEAR) ( observaciones)
2015 Feb. 09.42 UT: m1=15.8: CCD Dia.=&0.5′; [T31] 0.50-m f/6.8 astrograph + CCD + focal reducer; A. Novichonok & T. Prystavski (iTelescope observatory, Q62 remotely from Siding Spring, Australia) [evening twilight]
2015 Jan. 08.43 UT: m1=14.2: CCD, Dia.=&0.9′; [T12]0.11m f/5.0 refractor + CCD; A. Novichonok & T. Prystavski (iTelescope observatory, Q62 remotely from Siding Spring, Australia) [in the evening twilight]

C/2012 K1 (PANSTARRS) ( observaciones)
2015 Oct. 03.54 UT: m1=15.3 CCD, Dia.=0.6′; [T31] 0.50-m f/6.8 astrograph + CCD + focal reducer; A. Novichonok & T. Prystavski (iTelescope observatory, Q62 remotely from Siding Spring, Australia)
2015 Sep. 11.50 UT: m1=14.3 CCD, Dia.=1.2′; [T31] 0.50-m f/6.8 astrograph + CCD + focal reducer; A. Novichonok & T. Prystavski (iTelescope observatory, Q62 remotely from Siding Spring, Australia)
2015 Aug. 17.81 UT: m1=14.3 CCD, Dia.=1.1′; [T31] 0.50-m f/6.8 astrograph + CCD + focal reducer; A. Novichonok & T. Prystavski (iTelescope observatory, Q62 remotely from Siding Spring, Australia)
2015 July 26.70 UT: m1=15.1 CCD Dia.=0.5′; [T31] 0.50-m f/6.8 astrograph + CCD + focal reducer; A. Novichonok & T. Prystavski (iTelescope observatory, Q62 remotely from Siding Spring, Australia)
2015 Feb. 09.43 UT: m1=12.4: CCD Dia.=&2.3′, Tail=&27′ in PA 94 deg; [T31] 0.50-m f/6.8 astrograph + CCD + focal reducer; A. Novichonok & T. Prystavski (iTelescope observatory, Q62 remotely from Siding Spring, Australia)
2015 Jan. 17.45 UT: m1=11.6, Dia.=3.1’; DC=4/; 25cm L f:5 (x39); Chris Wyatt (Walcha, NSW, Australia) [Coma diffuse with small and slightly brighter central condensation, sometimes faintly stellar in periods of good seeing]
2015 Jan. 14.44 UT: m1=12.1, Dia.=2.2’, DC=3/4; 25cm L f:5 (39x); Chris Wyatt (Walcha, NSW, Australia) [Coma faint with brighter and moderately condensed central condensation, very faint tail 2.5’ in length in P.A. 078°. No enhancement using Swan band filter]
2015 Jan. 08.44 UT: m1=10.2: CCD, Dia.=&3.1′, Tail=22.5′ in PA 97 deg; [T12]0.11m f/5.0 refractor + CCD; A. Novichonok & T. Prystavski (iTelescope observatory, Q62 remotely from Siding Spring, Australia) [in the evening twilight]

C/2012 F3 (PANSTARRS) ( observaciones)
2015 Oct. 02.08 UT: m1=15.0: CCD, Dia.=&0.5′; [T20] 0.1-m f/5.0 astrograph + CCD; A. Novichonok & T. Prystavski (iTelescope observatory, H06 remotely from Mayhill, U.S.A.)
2015 Sep. 11.47 UT: m1=14.3: CCD, Dia.=&0.9′; [T31] 0.50-m f/6.8 astrograph + CCD + focal reducer; A. Novichonok & T. Prystavski (iTelescope observatory, Q62 remotely from Siding Spring, Australia)
2015 Sep. 06.83 UT: m1=14.7, Dia.=0.15′, DC=4; 60.3-cm L (305x); Sandor Szabo (Sopron, Hungary)
2015 Aug. 19.85 UT: m1=14.2: CCD, Dia.=&0.5′; 0.08-m f/7.5 refractor + CCD; A. Novichonok, T. Prystavski (Konchezero Stn., Republic of Karelia, Russia)
2015 Aug. 14.89 UT: m1=14.4, Dia.=0.4′, DC=3; 60.3-cm L (408x); Sandor Szabo (Sopron, Hungary)
2015 July 18.92 UT: m1=13.7, Dia.=0.7′, DC=3; 60.3 cm L (187x); Sandor Szabo (Sopron, Hungary)
2015 July 11.99 UT: m1=12.9, Dia.=0.6′, DC=3; 25-cm L (150x); Gábor Sánta (Zlatibor, Serbia) [PN-like]
2015 July 11.95 UT: m1=13.3, Dia.=0.9′, DC=2; 35-cm L (178x); Jakub Černý (Zachotin, Czech Republic)
2015 July 10.93 UT: m1=13.5, Dia.=0.7′, DC=3/; 35-cm L (178x); Jakub Cerny Jakub Cerný (Zachotin, Czech Republic)
2015 July 07.49 UT: m1=13.6, Dia.=0.6’, DC=2; 25cm L f:5 (166x); Chris Wyatt (Walcha, NSW, Australia) [Close to mag 14.8 star, 0.1’ away in PA 300 approxiamtely; coma diffuse, difficult to due to diffuse nature and star field]
2015 June 27.71 UT: m1=13.7, Dia.=0.7’, DC=2; 25cm L f:5 (83x); Chris Wyatt (Walcha, NSW, Australia) [Coma diffuse, no tail. Does not enhance in Swan Band filter]
2015 June 26.72 UT: m1=13.9, Dia.=0.4’, DC=2; 25cm L f:5 (83x); Chris Wyatt (Walcha, NSW, Australia) [No tail, coma diffuse, close to bright stars of 14th magnitude]
2015 June 23.96 UT: m1=13.7, Dia.=0′.6, DC=3; 35-cm L (239x); Jakub Cerny (Senohraby, Czech Republic)
2015 June 22.74 UT: m1=13.9, Dia.=0.6’, DC=1/; 25cm L f:5 (166x); Chris Wyatt (Walcha, NSW, Australia) [Coma small and diffuse, no tail. Close proximity to grouping of 3 limiting magnitude stars of 15th magnitude]
2015 June 12.32 UT: m1=13.8: CCD, Dia.=&0.8′ Tail=0.8′ in PA: 271 deg.; [T20] 0.1-m f/5.0 astrograph + CCD; A. Novichonok & T. Prystavski (iTelescope observatory, H06 remotely from Mayhill, U.S.A.)
2015 May  22.02 UT: m1=14.9 CCD + R filter, Dia.=36″, DC=4; 70-cm f/4 L + CCD; Alexander Baransky (Kyiv comet station MPC 585, Ukraine)
2015 Apr. 19.41 UT: m1=14.6 CCD, Dia.=0.5′, Tail=0.5′ in PA 221 deg; [T20] 0.1-m f/5.0 astrograph + CCD; A. Novichonok & T. Prystavski (iTelescope observatory, H06 (remotely from Mayhill, U.S.A.))
2015 Apr. 01.45 UT: m1=14.9: CCD, Dia.=&0.4′, Tail=&0.6′ in PA 263 deg; [T20] 0.1-m f/5.0 astrograph + CCD; A. Novichonok & T. Prystavski (iTelescope observatory, H06 remotely from Mayhill, U.S.A.)
2015 Mar. 01.52 UT: m1=14.3: CCD, Dia.=&0.5′, Tail=&0.6′ in PA 271 deg; [T20] 0.1-m f/5.0 astrograph + CCD; A. Novichonok & T. Prystavski (iTelescope observatory, H06 (remotely from Mayhill, U.S.A.)
2015 Jan. 20.54 UT: m1=14.5: CCD, Dia.=&0.5′; [T20] 0.1-m f/5.0 astrograph + CCD; A. Novichonok & T. Prystavski (iTelescope observatory, H06 remotely from Mayhill, U.S.A.) [images obtained in the morning twilight]

C/2011 KP36 (Spacewatch) ( observaciones)
2015 Oct. 15.78 UT: m1=14.2: CCD, Dia.=&0.9′; [T16] 0.15-m f/7.3 refractor + CCD; A. Novichonok & T.Prystavski (AstroCamp Observatory, I89 remotely from Nerpio, Spain)
2015 Sep. 07.53 UT: m1=14.5 CCD, Dia.=0.8′; [T31] 0.50-m f/6.8 astrograph + CCD + focal reducer; A. Novichonok & T. Prystavski (iTelescope observatory, Q62 remotely from Siding Spring, Australia)
2015 Sep. 06.86 UT: m1=15.5, Dia.=0.1′, DC=4; 60.3-cm L (305x); Sandor Szabo (Sopron, Hungary)
2015 Aug. 21.92 UT: m1=14.1, DC=D8; 32.0-cm L f/5 (240x); Uwe Pilz (Leipzig, Germany)
2015 Aug. 19.87 UT: m1=14.0: CCD, Dia.=&0.6′; 0.08-m f/7.5 refractor + CCD; A. Novichonok, T. Prystavski (Konchezero Stn., Republic of Karelia, Russia)
2015 July 18.95 UT: m1=14.5, Dia.=0.4′, DC=2; 60.3 cm L (305x); Sandor Szabo (Sopron, Hungary)
2015 July 11.97 UT: m1=14.3, Dia.=0.5′, DC=4; 35-cm L (178x); Jakub Černý (Zachotin, Czech Republic)
2015 July 10.96 UT: m1=14.1, Dia.=0.5′, DC=4/; 35-cm L (178x); Jakub Cerny Jakub Cerný (Zachotin, Czech Republic)
2015 July 08.56 UT: m1=14.0: CCD, Dia.=&1.4′; [T17] 0.43-m f/6.8 astrograph + CCD; A. Novichonok & T.Prystavski (iTelescope observatory, Q62 remotely from Siding Spring, Australia)
2015 June 12.34 UT: m1=13.8: CCD, Dia.=&1.5′; [T20] 0.1-m f/5.0 astrograph + CCD; A. Novichonok & T. Prystavski (iTelescope observatory, H06 remotely from Mayhill, U.S.A.)
2015 Apr. 17.47 UT: m1=14.9: CCD, Dia.=&0.8′; [T20] 0.1-m f/5.0 astrograph + CCD; A. Novichonok & T. Prystavski (iTelescope observatory, H06 remotely from Mayhill, U.S.A.)
2015 Mar. 28.48 UT: m1=15.3 CCD, Dia.=0.5′; [T20] 0.1-m f/5.0 astrograph + CCD; A. Novichonok & T. Prystavski (iTelescope observatory, H06 remotely from Mayhill, U.S.A.)

C/2011 J2 (LINEAR) ( observaciones)
2015 Oct. 04.58 UT: m1=16.5: CCD, Dia.=&0.4′; [T31] 0.50-m f/6.8 astrograph + CCD + focal reducer; A. Novichonok & T. Prystavski (iTelescope observatory, Q62 remotely from Siding Spring, Australia)
2015 Sep. 06.92 UT: m1=15.5, Dia.=0.15′, DC=4; 60.3-cm L (305x); Sandor Szabo (Sopron, Hungary)
2015 Aug. 16.90 UT: m1=16.2: CCD, Dia.=0.4′, Tail=0.6′ in PA: 36 deg.; 0.07-m f/6 refractor + CCD; A. Novichonok, K. Nezgovorov & T. Prystavski (Petrozavodsk State University Observatory, C30 Sheltozero Stn., Russia)
2015 July 22.01 UT: m1=[15.5, NEGATIVE; 60.3 cm L (406x); Sandor Szabo (Sopron, Hungary)
2015 Feb. 06.07 UT: m1=15.3: CCD, Dia.=0.6′, Tail=0.8′ in PA 32 deg; [T20] 0.1-m f/5.0 astrograph + CCD; A. Novichonok & T. Prystavski (iTelescope observatory, H06 remotely from Mayhill, U.S.A.)
2015 Jan. 08.77 UT: m1=15.4 CCD, Dia.=0.7′ Tail=&1.7′ in PA 38 deg; [T16] 0.15-m f/7.3 refractor + CCD; A. Novichonok & T.Prystavski (AstroCamp Observatory, I89 remotely from Nerpio, Spain)

C/2010 U3 (Boattini) ( observaciones)
2015 Jan. 17.07 UT: m1=17.0: CCD, Dia.=0.6′; [T20] 0.1-m f/5.0 astrograph + CCD; A. Novichonok & T. Prystavski (iTelescope observatory, H06 remotely from Mayhill, U.S.A.) [2 frames were co-added for the photometry]

C/2010 S1 (LINEAR) ( observaciones)
2015 Sep. 15.43 UT: m1=15.8: CCD, Dia.=&0.5′; [T31] 0.50-m f/6.8 astrograph + CCD + focal reducer; A. Novichonok & T. Prystavski (iTelescope observatory, Q62 remotely from Siding Spring, Australia)
2015 Aug. 18.47 UT: m1=15.1: CCD, Dia.=&0.6′; [T31] 0.50-m f/6.8 astrograph + CCD + focal reducer; A. Novichonok & T. Prystavski (iTelescope observatory, Q62 remotely from Siding Spring, Australia)
2015 Apr. 01.44 UT: m1=14.7: CCD, Dia.=&0.7′; [T20] 0.1-m f/5.0 astrograph + CCD; A. Novichonok & T. Prystavski (iTelescope observatory, H06 remotely from Mayhill, U.S.A.)
2015 Mar. 02.76 UT: m1=14.7: CCD Dia.=&0.7′; [T31] 0.50-m f/6.8 astrograph + CCD + focal reducer; A. Novichonok & T. Prystavski (iTelescope observatory, Q62 remotely from Siding Spring, Australia)

C/2006 S3 (LONEOS) ( observaciones)
2015 July 09.43 UT: m1=16.5 CCD, Dia.=0.4′; [T31] 0.50-m f/6.8 astrograph + CCD + focal reducer; A. Novichonok & T. Prystavski (iTelescope observatory, Q62 remotely from Siding Spring, Australia)
2015 May  11.90 UT: m1=15.5, Dia.=0.3’, DC=4; 50.8 cm L (307x); Sandor Szabo (Sopron, Hungary) [Surprisingly the comet is still seen, checked in DSS]
2015 May  08.14 UT: m1=15.4 CCD, Dia.=0.7′; [T20] 0.1-m f/5.0 astrograph + CCD; A. Novichonok & T. Prystavski (iTelescope observatory, H06 remotely from Mayhill, U.S.A.)
2015 Apr. 10.20 UT: m1=15.6 CCD, Dia.=0.6′; [T20] 0.1-m f/5.0 astrograph + CCD; A. Novichonok & T. Prystavski (iTelescope observatory, H06 remotely from Mayhill, U.S.A.)
2015 Mar. 16.27 UT: m1=15.2 CCD, Dia.=0.7′ Tail=1.3′ in PA 113 deg; [T20] 0.1-m f/5.0 astrograph + CCD; A. Novichonok & T. Prystavski (iTelescope observatory, H06 remotely from Mayhill, U.S.A.)
2015 Feb. 14.43 UT: m1=16.0 CCD, Dia.=0.4′, Tail=0.7′ in PA 233 deg; [T20] 0.1-m f/5.0 astrograph + CCD; A. Novichonok & T. Prystavski (iTelescope observatory, H06 remotely from Mayhill, U.S.A.)
2015 Jan. 17.48 UT: m1=15.5 CCD, Dia.=0.5′ Tail=0.7′ in PA 136 deg; [T20] 0.1-m f/5.0 astrograph + CCD; A. Novichonok & T. Prystavski (iTelescope observatory, H06 remotely from Mayhill, U.S.A.)


(596) Scheila (P/1906 UA) (1 observación)
2015 May  5.81 UT: m(R)=14.8 CCD + R filter, Dia.=6″, DC=9; Alexander Baransky, Kyiv comet station (MPC 585), Ukraine [No trace of cometary activity]

325P/Yang-Gao (1 observación)
2015 Oct. 04.43 UT: m1=17.5: CCD, Dia.=&0.2′; [T31] 0.50-m f/6.8 astrograph + CCD + focal reducer; A. Novichonok & T. Prystavski (iTelescope observatory, Q62 remotely from Siding Spring, Australia)

320P/McNaught (1 observación)
2015 Aug. 18.48 UT: m1=19.7 CCD; [T31] 0.50-m f/6.8 astrograph + CCD + focal reducer; A. Novichonok & T. Prystavski (iTelescope observatory, Q62 remotely from Siding Spring, Australia)

319P/Catalina-McNaught (1 observación)
2015 Oct. 04.60 UT: m1=18.0: CCD, Dia.=&0.3′, Tail=&0.9′ in PA 267 deg.; [T31] 0.50-m f/6.8 astrograph + CCD + focal reducer; A. Novichonok & T. Prystavski (iTelescope observatory, Q62 remotely from Siding Spring, Australia)

318P/McNaught-Hartley ( observaciones)
2015 Nov. 11.82 UT: m1=15.2, Dia.=0.4′, DC=4; 60.3-cm L (305x); Sandor Szabo (Sopron, Hungary)
2015 Oct. 16.39 UT: m1=15.3 CCD, Dia.=0.5′, Tail=1.2′ in PA: 62 deg.; [T31] 0.50-m f/6.8 astrograph + CCD + focal reducer; A. Novichonok & T. Prystavski (iTelescope observatory, Q62 remotely from Siding Spring, Australia)
2015 Sep. 27.45 UT: m1=15.3: CCD, Dia.=&0.3′; [T31] 0.50-m f/6.8 astrograph + CCD + focal reducer; A. Novichonok & T. Prystavski (iTelescope observatory, Q62 remotely from Siding Spring, Australia) [interference by Moon: Moon phase 0.99, altitude 45 deg.]
2015 Sep. 07.57 UT: m1=13.8 CCD, Dia.=1.1′, Tail=1.4′ in PA 296 deg.; [T17] 0.43-m f/6.8 astrograph + CCD; A. Novichonok & T.Prystavski (iTelescope observatory, Q62 remotely Siding Spring, Australia)
2015 Aug. 20.54 UT: m1=14.1 CCD, Dia.=0.9′, Tail=1.2′ in PA 281 deg.; [T31] 0.50-m f/6.8 astrograph + CCD + focal reducer; A. Novichonok & T. Prystavski (iTelescope observatory, Q62 remotely from Siding Spring, Australia)

284P/McNaught (1 observación)
2015 Jan. 16.07 UT: m1=16.1 CCD, Dia.=0.4′; [T20] 0.1-m f/5.0 astrograph + CCD; A. Novichonok & T. Prystavski (iTelescope observatory, H06 remotely from Mayhill, U.S.A.)

269P/Jedicke ( observaciones)
2015 Mar. 11.89 UT: m1=15.9 CCD, Dia.=0.55′; [T16] 0.15-m f/7.3 refractor + CCD; A. Novichonok & T.Prystavski (AstroCamp Observatory, I89 remotely from Nerpio, Spain)
2015 Mar. 18.88 UT: m1=[15.5 NEGATIVE; 50.8 cm L (307x); Sandor Szabo (Sopron, Hungary)
2015 Feb. 17.02 UT: m1=15.0 CCD + R filter, Dia.=23″, DC 5, Tail=3’15” in PA: 287 deg.; 70-cm f/4 L + CCD; Alexander Baransky (Kyiv comet station MPC 585, Ukraine)
2015 Feb. 10.99 UT: m1=14.9 CCD + R filter, Dia.=26″, DC 5, 70-cm f/4 L + CCD; Alexander Baransky (Kyiv comet station MPC 585, Ukraine) [Fan-shaped coma]
2015 Feb. 22.44 UT: m1=16.1: CCD, Dia.=0.2′; [T9] 0.32-m f/7.4 Ritchey-Chretien + CCD; A. Novichonok & T. Prystavski (iTelescope observatory, Q62 remotely from Siding Spring, Australia)
2015 Jan. 15.01 UT: m1=15.2 CCD + R filter, Dia.=20″, DC 4, Tail=1’30” in PA: 288 deg.; 70-cm f/4 L + CCD; Alexander Baransky (Kyiv comet station MPC 585, Ukraine)
2015 Jan. 14.92 UT: m1=16.0 CCD, Dia.=0.3′; [T16] 0.15-m f/7.3 refractor + CCD; A. Novichonok & T.Prystavski (AstroCamp Observatory, I89 remotely from Nerpio, Spain)

246P/NEAT ( observaciones)
2015 Feb. 06.10 UT: m1=16.9 CCD, Dia.=0.3′; [T20] 0.1-m f/5.0 astrograph + CCD; A. Novichonok & T. Prystavski (iTelescope observatory, H06 remotely from Mayhill, U.S.A.)
2015 Jan. 07.78 UT: m1=17.0 CCD, Dia.=0.28′; [T16] 0.15-m f/7.3 refractor + CCD; A. Novichonok & T.Prystavski (AstroCamp Observatory, I89 remotely from Nerpio, Spain)

230P/LINEAR ( observaciones)
2015 Dec. 30.46 UT: m1=13.5, Dia.=0.9’, DC=5/; 25-cm L f:5 (83x); Chris Wyatt (Walcha, NSW, Australia) [Coma very diffuse, semi-opaque, pale blue in colour, with small faint stellar central condensation (m2 approx. 14.5) No tail]
2015 Dec. 29.88 UT: m1=13.5 DSRL, Dia.=1′; canon 1100d+300mm lens; Giuseppe Pappa (Mascalucia, Sicily, Italy)
2015 Dec. 29.46 UT: m1=13.6, Dia.=0.4’, DC=6; 25-cm L f:5 (166x); Chris Wyatt (Walcha, NSW, Australia) [Coma diffuse with faint stellar centre, m2 approximately 14.2. Does not enhance in Swan Band filter, no tail. Coma visible at x83]
2015 Dec. 21.16 UT: m1=13.0, Dia.=0.6′, DC=6; 20-cm SCT (160x); Juan José González (Alto del Castro – Aralla, alt. 1720 m, León, España) [Estrellas de comparación de la fotometría APASS cercana al cometa. Estrellas de campo comprobadas en el DSS]
2015 Nov. 30.49 UT: m1=14.0, Dia.=0.3’, DC=6/; 25cm L f:5 (166x); Chris Wyatt (Walcha, NSW, Australia) [Very difficult due to average seeing conditions, visible in periods of good seeing; the coma is very small and compact with a thin fuzzy outer edge. Limiting mag = 14.8]
2015 Nov. 20.70 UT: m1=[15.4; 40.0-cm L f/4.5 (257x); Seiichi Yoshida (Gunma, Japan)
2015 Nov. 12.02 UT: m1=15.9, Dia.=0.1′, DC=8; 60.3-cm L (305x); Sandor Szabo (Sopron, Hungary) [Motion was checked, nearly stellar]
2015 Sep. 11.71 UT: m1=16.8 CCD; [T31] 0.50-m f/6.8 astrograph + CCD + focal reducer; A. Novichonok & T. Prystavski (iTelescope observatory, Q62 remotely from Siding Spring, Australia)
2015 Aug. 22.66 UT: m1=18.0: CCD; [T31] 0.50-m f/6.8 astrograph + CCD + focal reducer; A. Novichonok & T. Prystavski (iTelescope observatory, Q62 remotely from Siding Spring, Australia)

221P/LINEAR ( observaciones)
2015 July 18.88 UT: m1=15.0, Dia.=0.3′, DC=3; 60.3 cm L (305x); Sandor Szabo (Sopron, Hungary)
2015 July 08.47 UT: m1=15.6 CCD Dia.=0.4′ Tail=0.3′ in PA: 108 deg.; [T31] 0.50-m f/6.8 astrograph + CCD + focal reducer; A. Novichonok & T. Prystavski (iTelescope observatory, Q62 remotely from Siding Spring, Australia)
2015 May  22.02 UT: m1=15.4 CCD + R filter, Dia.=10″, DC=4, Fantail=16″ in PA: 261-69 deg.; 70-cm f/4 L + CCD; Alexander Baransky (Kyiv comet station MPC 585, Ukraine)

220P/McNaught (1 observación)
2015 Sep. 13.04 UT: m1=[15.8, NEGATIVE; 60.3-cm L (305x); Sandor Szabo (Sopron, Hungary) [Not seen, fainter than 15.8 mag]

218P/LINEAR ( observaciones)
2015 July 22.00 UT: m1=[15.5, NEGATIVE; 60.3 cm L (406x); Sandor Szabo (Sopron, Hungary)
2015 July 18.97 UT: m1=[15.8, NEGATIVE; 60.3 cm L (406x); Sandor Szabo (Sopron, Hungary) [A small dot is suspected, but not sure]
2015 July 08.53 UT: m1=15.9 CCD, Dia.=0.4′ Tail=0.8′ in PA: 249 deg.; [T17] 0.43-m f/6.8 astrograph + CCD; A. Novichonok & T. Prystavski (iTelescope observatory, Q62 remotely from Siding Spring, Australia)
2015 May  14.72 UT: m1=13.9, Dia.=0.6’, DC=2/; 25cm L f:5 (83x); Chris Wyatt (Walcha, NSW, Australia) [Coma diffuse; difficult due to bright mag 11.1 star, 1.2’ away in P.A. 145°, moonlight and zodiacal light. No tail]
2015 Apr. 20.41 UT: m1=15.2: CCD, Dia.=&0.4′, Tail=&0.8′ in PA 263 deg; [T20] 0.1-m f/5.0 astrograph + CCD; A. Novichonok & T. Prystavski (iTelescope observatory, H06 remotely from Mayhill, U.S.A.)
2015 Mar. 01.51 UT: m1=15.5 CCD, Dia.=0.5′; [T20] 0.1-m f/5.0 astrograph + CCD; A. Novichonok & T. Prystavski (iTelescope observatory, H06 remotely from Mayhill, U.S.A.)
2015 Feb. 18.11 UT: m1=16.4 CCD + R filter, Dia.=22″, DC 5, Tail=54″ in PA: 293 deg.; 70-cm f/4 L + CCD; Alexander Baransky (Kyiv comet station MPC 585, Ukraine)

205P/Giacobini ( observaciones)
2015 Oct. 19.76 UT: m1=16.1: CCD, Dia.=0.3′, Tail=0.9′ in PA: 247 deg.; [T31] 0.50-m f/6.8 astrograph + CCD + focal reducer; A. Novichonok & T. Prystavski (iTelescope observatory, Q62 remotely from Siding Spring, Australia)
2015 Oct. 13.47 UT: m1=15.7: CCD, Dia.=&0.4′, Tail=&1.5′ in PA: 270 deg.; [T20] 0.1-m f/5.0 astrograph + CCD; A. Novichonok & T. Prystavski (iTelescope observatory, H06 remotely from Mayhill, U.S.A.)
2015 Sep. 21.75 UT: m1=13.7, Dia.=0.4′, DC=4; 40.0-cm L f/4.5 (257x); Seiichi Yoshida (Gunma, Japan)
2015 Sep. 18.49 UT: m1=14.3 CCD, Dia.=0.48′, Tail=0.4′ in PA: 260 deg.; [T20] 0.1-m f/5.0 astrograph + CCD; A. Novichonok & T. Prystavski (iTelescope observatory, H06 remotely from Mayhill, U.S.A.)
2015 Sep. 13.08 UT: m1=14.9, Dia.=0.2′, DC=6; 60.3-cm L (305x); Sandor Szabo (Sopron, Hungary) [Much brighter than expected, very compact]

201P/LONEOS ( observaciones)
2015 Mar. 27.84 UT: m1=16.0 CCD, Dia.=0.6′; [T16] 0.15-m f/7.3 refractor + CCD; A. Novichonok & T. Prystavski (AstroCamp Observatory, I89 remotely from Nerpio, Spain)
2015 Mar. 23.80 UT: m1=17.4 CCD + R filter, Dia.=10″, DC 6,  Tail=1′ 30″ in PA: 91 deg.; 70-cm f/4 L + CCD; Alexander Baransky (Kyiv comet station MPC 585, Ukraine)
2015 Mar. 18.85 UT: m1=[15.5 NEGATIVE; 50.8 cm L (307x); Sandor Szabo (Sopron, Hungary)
2015 Mar. 05.84 UT: m1=16.6 CCD + R filter, Dia.=14″, DC 5,  Tail=49″ in PA: 88 deg.; 70-cm f/4 L + CCD; Alexander Baransky (Kyiv comet station MPC 585, Ukraine)
2015 Feb. 13.10 UT: m1=15.1 CCD, Dia.=0.55′, Tail=0.9′ in PA 59 deg; [T20] 0.1-m f/5.0 astrograph + CCD; A. Novichonok & T. Prystavski (iTelescope observatory, H06 remotely from Mayhill, U.S.A.)
2015 Jan. 08.81 UT: m1=15.0 CCD, Dia.=0.58′, Tail=3.2′ in PA 74 deg; [T16] 0.15-m f/7.3 refractor + CCD; A. Novichonok & T.Prystavski (AstroCamp Observatory, I89 remotely from Nerpio, Spain)

191P/McNaught (1 observación)
2015 Jan. 14.90 UT: m1=17.9 CCD + R filter, Dia.=6″, DC 4, 70-cm f/4 L + CCD; Alexander Baransky (Kyiv comet station MPC 585, Ukraine)

174P/Echeclus (1 observación)
2015 Sep. 12.99 UT: m1=[15.8, NEGATIVE; 60.3-cm L (305x); Sandor Szabo (Sopron, Hungary) [Not seen, fainter than 15.8 mag]

162P/Siding Spring (1 observación)
2015 Apr. 24.82 UT: m1=16.3: CCD; [T17] 0.43-m f/6.8 astrograph + CCD; A. Novichonok & T. Prystavski (iTelescope observatory, Q62 remotely Siding Spring, Australia)

158P/Kowal-LINEAR (1 observación)
2015 Mar. 23.84 UT: m1=18.7 CCD + R filter, Dia.=8″, DC 7, 70-cm f/4 L + CCD; Alexander Baransky (Kyiv comet station MPC 585, Ukraine)

 151P/Helin (1 observación)
2015 Oct. 10.65 UT: m1=16.9 CCD, Dia.=0.2′; [T31] 0.50-m f/6.8 astrograph + CCD + focal reducer; A. Novichonok & T. Prystavski (iTelescope observatory, Q62 remotely from Siding Spring, Australia)
141P/Machholz H ( observaciones)
2015 Aug. 24.04 UT; m1=14.4: CCD, Dia.=1.5′; 0.3-m f/1.5 astrograph + CCD; G. Borisov & T. Prystavski (MARGO – MPC L51 Crimea-Nauchnij)
2015 Aug. 23.06 UT: m1=14.3: CCD, Dia.=1.3′; 0.3-m f/1.5 astrograph + CCD; G. Borisov & T. Prystavski (MARGO – MPC L51 Crimea-Nauchnij)
2015 Aug. 22.04 UT: m1=14.4: CCD, Dia.=1.3′; 0.3-m f/1.5 astrograph + CCD; G. Borisov & T. Prystavski (MARGO – MPC L51 Crimea-Nauchnij)
141P/Machholz ( observaciones)
2015 Oct. 15.77 UT: m1=16.5: CCD, Dia.=&0.3′; [T31] 0.50-m f/6.8 astrograph + CCD + focal reducer; A. Novichonok & T. Prystavski (iTelescope observatory, Q62 remotely from Siding Spring, Australia)
2015 Sep. 21.81 UT: m1=11.8, Dia.=1.1′, DC=1; 40.0-cm L f/4.5 (144x); Seiichi Yoshida (Gunma, Japan)
2015 Sep. 18.49 UT: m1=13.0 CCD, Dia.=1.3′; [T20] 0.1-m f/5.0 astrograph + CCD; A. Novichonok & T. Prystavski (iTelescope observatory, H06 (remotely from Mayhill, U.S.A.)
2015 Sep. 18.14 UT: m1=12.3, Dia.=1.6′, DC=3; 32.0-cm L f/5 (96x); Uwe Pilz (Leipzig, Germany)
2015 Sep. 13.48 UT: m1=13.0 CCD, Dia.=1.4′; [T20] 0.1-m f/5.0 astrograph + CCD; A. Novichonok & T. Prystavski (iTelescope observatory, H06 remotely from Mayhill, U.S.A.)
2015 Sep. 13.11 UT: m1=10.8, Dia.=2.5′, DC=1; 60.3-cm L (189x); Sandor Szabo (Sopron, Hungary) [With SWAN filter it becames 4.5’ diameter, DC=2]
2015 Aug. 28.17 UT: m1=11.2, Dia.=2.5′, DC=2; 20-cm SCT (100x); Juan José González (Cea, alt. 875 m, León, España) [Observado después del ocaso lunar. Estrellas de campo comprobadas en el DSS. Luz Zodiacal. Comienzo del crepúsculo astronómico. Altura sobre el horizonte: 23º. Cielo muy claro de montaña]
2015 Aug. 26.46 UT: m1=12.3: CCD, Dia.=&1.9′; [T20] 0.1-m f/5.0 astrograph + CCD; A. Novichonok & T. Prystavski (iTelescope observatory, H06 remotely from Mayhill, U.S.A.)
2015 Aug. 24.04 UT: m1=12.6: CCD, Dia.=2.2′; 0.3-m f/1.5 astrograph + CCD; G. Borisov & T. Prystavski (MARGO – MPC L51 Crimea-Nauchnij)
2015 Aug. 23.97 UT: m1=11.9: (Tri-G), Dia.=2.2′; Nikon 5200 + 135-mm lens; Artyom Novichonok (Konchezero, Russia)
2015 Aug. 23.06 UT: m1=12.6: CCD, Dia.=2.3′; 0.3-m f/1.5 astrograph + CCD; G. Borisov & T. Prystavski (MARGO – MPC L51 Crimea-Nauchnij)
2015 Aug. 22.04 UT: m1=12.3: CCD, Dia.=&2.3′; 0.3-m f/1.5 astrograph + CCD; G. Borisov & T. Prystavski (MARGO – MPC L51 Crimea-Nauchnij)
2015 Aug. 15.06 UT: m1=[15.0; 60.3-cm L (244x); Sandor Szabo (Sopron, Hungary) [NEGATIVE, not seen]
2015 July 13.10 UT: m1=14.3: CCD, Dia.=&1.4′; [T16] 0.15-m f/7.3 refractor + CCD; A. Novichonok & T. Prystavski (AstroCamp Observatory, I89 remotely from Nerpio, Spain)
2015 July 11.99 UT: m1=14.6, Dia.=0.8′, DC=3; 35-cm L (178x); Jakub Černý (Zachotin, Czech Republic)
2015 July 10.98 UT: m1=14.9, Dia.=0.5′, DC=3; 35-cm L (178x); Jakub Cerný (Zachotin, Czech Republic)
119P/Parker-Hartley (1 observación)
2015 Jan. 15.04 UT: m1=18.0 CCD + R filter, Dia.=8″, DC 4, FanTail=22″ in PA: 204-312 deg.; 70-cm f/4 L + CCD; Alexander Baransky (Kyiv comet station MPC 585, Ukraine)
118P/Shoemaker-Levy 4 (1 observación)
2015 Oct. 04.58 UT: m1=16.7 CCD, Dia.=0.25′; [T31] 0.50-m f/6.8 astrograph + CCD + focal reducer; A. Novichonok & T. Prystavski (iTelescope observatory, Q62 remotely from Siding Spring, Australia)
117P/Helin-Roman-Alu 1 ( observaciones)
2015 Nov. 11.94 UT: m1=14.8, Dia.=0.9′, DC=1; 50.8-cm L (307x); Sandor Szabo (Sopron, Hungary)
2015 Oct. 15.88 UT: m1=15.1: CCD, Dia.=&0.5′, Tail=1.4′ in PA: 230 deg.; [T16] 0.15-m f/7.3 refractor + CCD; A. Novichonok & T.Prystavski (AstroCamp Observatory, I89 remotely from Nerpio, Spain)
2015 Sep. 13.48 UT: m1=15.6 CCD, Tail=2.6′ in PA: 247 deg.; [T20] 0.1-m f/5.0 astrograph + CCD; A. Novichonok & T. Prystavski (iTelescope observatory, H06 remotely from Mayhill, U.S.A.)
2015 Sep. 12.98 UT: m1=15.2, Dia.=0.4′, DC=4; 60.3-cm L (305x); Sandor Szabo (Sopron, Hungary)
2015 Aug. 17.81 UT: m1=16.0 CCD, Dia.=0.3′, Tail=1.4′ in PA: 249 deg.; [T31] 0.50-m f/6.8 astrograph + CCD + focal reducer; A. Novichonok & T. Prystavski (iTelescope observatory, Q62 Remotely from Siding Spring, Australia)
2015 July 23.14 UT: m1=15.7 CCD, Dia.=0.5′ Tail=2.6′ in PA: 246 deg.; [T16] 0.15-m f/7.3 refractor + CCD; A. Novichonok & T. Prystavski (AstroCamp Observatory, I89 remotely from Nerpio, Spain)
2015 June 13.83 UT: m1=16.1 CCD Dia.=0.3′ Tail=0.7′ in PA: 240 deg.; [T31] 0.50-m f/6.8 astrograph + CCD + focal reducer; A. Novichonok & T. Prystavski (iTelescope observatory, Q62 remotely from Siding Spring, Australia)
110P/Hartley ( observaciones)
2015 Mar. 23.88 UT: m1=15.9 CCD + R filter, Dia.=15″, DC 6; 70-cm f/4 L + CCD; Alexander Baransky (Kyiv comet station MPC 585, Ukraine)
2015 Mar. 11.89 UT: m1=16.1 CCD, Dia.=0.3′; [T16] 0.15-m f/7.3 refractor + CCD; A. Novichonok & T. Prystavski (AstroCamp Observatory, I89 remotely from Nerpio, Spain)
2015 Mar. 05.89 UT: m1=16.0 CCD + R filter, Dia.=17″, DC 4, FanTail=23″ in PA: 44-120 deg.; 70-cm f/4 L + CCD; Alexander Baransky (Kyiv comet station MPC 585, Ukraine)
2015 Feb. 22.44 UT: m1=15.5 CCD, Dia.=0.4′, Tail=0.5′ in PA 91 deg; [T31] 0.50-m f/4.4 astrograph + CCD; A. Novichonok & T. Prystavski iTelescope observatory, Q62 remotely from Siding Spring, Australia)
2015 Feb. 16.98 UT: m1=15.0 CCD + R filter, Dia.=37″, DC 6, FanTail=1′ in PA: 30-118 deg.; 70-cm f/4 L + CCD; Alexander Baransky (Kyiv comet station MPC 585, Ukraine)
2015 Feb. 15.80 UT: m1=13.8, Dia.=0′.6, DC=4/, 35 cm reflector (239x); Jakub Cerný (Zachotin, Czech Republic)
2015 Feb. 10.92 UT: m1=15.5 CCD + R filter, Dia.=24″, DC 4; 70-cm f/4 L + CCD; Alexander Baransky (Kyiv comet station MPC 585, Ukraine) [Fan-shaped coma]
2015 Feb. 07.77 UT: m1=14.3, Dia.=0.4′, DC=5; 40cm L (250x); Sandor Szabo (Sopron, Hungary)
2015 Feb. 06.98 UT: m1=14.5 CCD + R filter, Dia.=40″, DC 6, FanTail=1′ in PA: 316-78 deg.; 70-cm f/4 L + CCD; Alexander Baransky, Kyiv comet station MPC 585)
2015 Jan. 16.12 UT: m1=14.2 CCD, Dia.=0.6′; [T20] 0.1-m f/5.0 astrograph + CCD; A. Novichonok & T. Prystavski (iTelescope observatory, H06 remotely from Mayhill, U.S.A.)
2015 Jan. 14.80 UT: m1=14.7 CCD + R filter, Dia.=20″, DC 6, Tail=33″ in PA: 298 deg.; 70-cm f/4 L + CCD; Alexander Baransky (Kyiv comet station MPC 585, Ukraine)
108P/Ciffreo (1 observación)
2015 Jan. 17.06 UT: m1=15.0 CCD, Dia.=0.8′; [T20] 0.1-m f/5.0 astrograph + CCD; A. Novichonok & T. Prystavski (iTelescope observatory, H06 remotely from Mayhill, U.S.A.)
88P/Howell ( observaciones)
2015 Nov. 11.93 UT: m1=14.0, Dia.=0.8′, DC=3; 60.3-cm L (305x); Sandor Szabo (Sopron, Hungary)
2015 Nov. 02.77 UT: m1=12.5, DC=1; 32.0-cm L f/5 (120x); Uwe Pilz (Leipzig, Germany)
2015 Sep. 21.73 UT: m1=13.2, Dia.=1.3′, DC=2; 40.0-cm L f/4.5 (144x); Seiichi Yoshida (Gunma, Japan)
2015 Sep. 17.97 UT: m1=12.7, Dia.=1.0′, DC=2, Tail= 0.02 deg. PA: 153 deg.; 32.0-cm L f/5 (96x); Uwe Pilz (Leipzig, Germany)
2015 Sep. 12.94 UT: m1=12.2, Dia.=2.2′, DC=2; 50.8-cm L (189x); Sandor Szabo (Sopron, Hungary)
2015 Sep. 08.05 UT: m1=11.7, Dia.=2′, DC=1/; 20-cm SCT (100x); Juan José González (Alto del Castro, alt. 1720 m, León, España)
2015 Aug. 22.66 UT: m1=12.6 CCD, Dia.=2.2′, Tail=5.2′ in PA: 254 deg.; [T31] 0.50-m f/6.8 astrograph + CCD + focal reducer; A. Novichonok & T. Prystavski (iTelescope observatory, Q62 remotely from Siding Spring, Australia)
2015 Aug. 21.07 UT: m1=11.4, Dia.=2.0′, DC=s2, Tail= — PA: 27 deg.; 32.0-cm L f/5 (120x); Uwe Pilz (Leipzig, Germany)
2015 Aug. 19.12 UT: m1=10.8, Dia.=3′, DC=2; 20-cm SCT (77x); Juan José González (Cueto Rosales, alt. 1420 m, León, España)
2015 Aug. 17.81 UT: m1=16.0 CCD, Dia.=0.3′, Tail=1.4′ in PA: 249 deg.; [T31] 0.50-m f/6.8 astrograph + CCD + focal reducer; A. Novichonok & T. Prystavski (iTelescope observatory, Q62 Remotely from Siding Spring, Australia)
2015 Aug. 16.97 UT: m1=13.9: CCD, Dia.=&0.9′, Tail=&2.3′ in PA: 253 deg.; 0.07-m f/6 refractor + CCD; A. Novichonok, K. Nezgovorov & T. Prystavski (Petrozavodsk State University Observatory, C30 Sheltozero Stn., Russia)
2015 Aug. 16.05 UT: m1=10.8, Dia.=2.5′, DC=2, no cola; 20-cm B (50x); Carlos Labordena (Castellón, España)
2015 Aug. 15.03 UT: m1=13.4, Dia.=1.3′, DC=2; 60.3-cm L (187x); Sandor Szabo (Sopron, Hungary) [Very diffuse]
2015 Aug. 14.06 UT: m1=[11.5, Dia.=1.7′, NEGATIVE; 7.6-cm f/4 L (38x); Marek Biely (Brno, Czech Republic) [Not visible. Fainter than 11.5 mag.]
2015 Aug. 09.03 UT: m1=10.4, Dia.=3′, DC=2/; 20-cm SCT (77x); Juan José González (Cueto Rosales, alt. 1420 m, León, España)
2015 Aug. 08.23 UT: m1=11.6, Dia.=1.5′, DC=3; 22-cm L (160x); Marco Antonio Coelho Goiato (Araçatuba, Brazil)
2015 July 20.83 UT: m1=11.0: CCD, Dia.=&4.5′ Tail=&16′ in PA: 248 deg.; [T12] 0.11m f/5.0 refractor + CCD; A. Novichonok & T. Prystavski (iTelescope observatory, Q62 (remotely from Siding Spring, Australia)
2015 July 19.00 UT: m1=10.9, Dia.=0.7′, DC=5; 60.3 cm L (187x); Sandor Szabo (Sopron, Hungary)
2015 July 14.11 UT: m1=9.6, Dia.=3′, DC=3; 20-cm SCT (77x); Juan José González (Santiago Millás, alt. 930 m, León, España)
2015 July 12.01 UT: m1=10.5, Dia.=3.8′, DC=2; 25-cm L (92x); Gábor Sánta (Zlatibor, Serbia)
2015 June 27.76 UT: m1=9.7, Dia.=2.9’, DC=3; 25cm L f:5 (39x); Chris Wyatt (Walcha, NSW, Australia) [Coma enhances using Swan Band filter. Coma diffuse, transparent with slightly more condensed and opaque central condensation. No tail]
2015 June 22.79 UT: m1=10.8, Dia.=2.5′, DC=2; 40.6-cm L f/4 (76x); Paul Camilleri (Warners Bay, Australia)
2015 June 22.77 UT: m1=10.4, Dia.=4.0’, DC=4; 25cm L f:5 (39x); Chris Wyatt (Walcha, NSW, Australia) [Coma enhances moderately using Swan Band filter; Coma large and diffuse, broad opaque inner coma, pale aqua-blue in colour]
2015 June 21.81 UT: m1=11.0, Dia.=2.5′, DC=2; 40.6-cm L f/4 (76x); Paul Camilleri (Warners Bay, Australia)
2015 June 17.80 UT: m1=10.7, Dia.=3.0′, DC=2/; 40.6-cm L f/4 (76x); Paul Camilleri (Warners Bay, Australia)
2015 June 14.81 UT: m1=10.8, Dia.=2.8′, DC=2/; 40.6-cm L f/4 (76x); Paul Camilleri (Warners Bay, Australia)
2015 June 13.82 UT: m1=10.6: CCD Dia.=&4.2′ Tail=&15.9′ in PA: 244 deg.; [T31] 0.50-m f/6.8 astrograph + CCD + focal reducer; A. Novichonok & T. Prystavski (iTelescope observatory, Q62 remotely from Siding Spring, Australia)
2015 June 13.31 UT: m1=11.0, Dia.=2′, DC=3; 22-cm L (160x); Marco Antonio Coelho Goiato (Araçatuba, Brazil) [Great enhancement with Swan band filter]
2015 June 08.80 UT: m1=10.5, Dia.=3.0′, DC=2; 40.6-cm L f/4 (76x); Paul Camilleri (Warners Bay, Australia)
2015 June 06.81 UT: m1=10.3, Dia.=2.5′, DC=2; 40.6-cm L f/4 (76x); Paul Camilleri (Warners Bay, Australia)
2015 June 05.77 UT: m1=10.5, Dia.=2.5′, DC=2; 40.6-cm L f/4 (76x); Paul Camilleri (Warners Bay, Australia)
2015 June 04.76 UT: m1=10.4, Dia.=2.6’, DC=3; 25cm L f:5 (39x); Chris Wyatt (Walcha, NSW, Australia) [Moonlight; Difficult due to diffuseness and size, coma enhances in Swan Band filter, opaque centre, slightly brighter and more condensed than edges although weakly formed]
2015 June 03.78 UT: m1=10.0, Dia.=2.5′, DC=2; 40.6-cm L f/4 (76x); Paul Camilleri (Warners Bay, Australia)
2015 June 02.76 UT: m1=10.2, Dia.=3.0′, DC=2; 40.6-cm L f/4 (76x); Paul Camilleri (Warners Bay, Australia)
2015 June 01.80 UT: m1=10.1, Dia.=3.0′, DC=2; 40.6-cm L f/4 (76x); Paul Camilleri (Warners Bay, Australia)
2015 May  31.78 UT: m1=10.2, Dia.=3.0′, DC=2/; 40.6-cm L f/4 (76x); Paul Camilleri (Warners Bay, Australia)
2015 May  25.79 UT: m1=10.3, Dia.=3.5′, DC=2; 40.6-cm L f/4 (76x); Paul Camilleri (Warners Bay, Australia)
2015 May  24.35 UT: m1=9.9, Dia.=3′, DC=4/; 22-cm L (60x); Marco Antonio Coelho Goiato (Araçatuba, Brazil) [Enhances with Swan band filter]
2015 May  14.75 UT: m1=9.8, Dia.=3.5’, DC=5/; 25cm L f:5 (39x); Chris Wyatt (Walcha, NSW, Australia) [Coma enhances in Swan Band filter. Diffuse hut opaque outer coma, round in appearance, moderately condensed inner coma almost faintly stellar in centre, pale aqua-blue in colour]
2015 May  13.78 UT: m1=10.3, Dia.=3.0′, DC=2/; 40.6-cm L f/4 (76x); Paul Camilleri (Warners Bay, Australia)
2015 May  12.78 UT: m1=10.0, Dia.=3.0′, DC=3; 40.6-cm L f/4 (76x); Paul Camilleri (Warners Bay, Australia)
2015 May  11.78 UT: m1=10.0, Dia.=3.0′, DC=3; 40.6-cm L f/4 (76x); Paul Camilleri (Warners Bay, Australia)
2015 May  11.36 UT: m1=10.0:; 18-cm L (57x); Alexandre Amorim (Florianopolis, Brazil)
2015 May  10.77 UT: m1=10.1, Dia.=3.0, DC=3; 40.6cm L f/4 (76x); Paul Camilleri (Warners Bay, NSW, Australia)
2015 May  09.78 UT: m1=10.0, Dia.=3.5′, DC=3; 40.6cm L f/4 (76x); Paul Camilleri (Warners Bay, NSW, Australia)
2015 May  08.79 UT: m1=10.0, Dia.=4.0′, DC=3; 40.6cm L f/4 (76x); Paul Camilleri (Warners Bay, NSW, Australia)
2015 May  08.76 UT: m1=9.6, Dia.=4.5’, DC=3/; 25cm L f:5 (39x); Chris Wyatt (Walcha, NSW, Australia) [Moonlight; Diffuse outer coma, slightly brighter inner coma but weakly condensed. Enhances in Swan Band filter]
2015 May  07.78 UT: m1=9.8, Dia.=3.0, DC=3; 40.6cm L f/4 (76x); Paul Camilleri (Warners Bay, NSW, Australia)
2015 May  06.76 UT: m1=9.8, Dia.=3’, DC=3; 25cm L f:5 (39x); Chris Wyatt (Walcha, NSW, Australia) [Moonlight; Outer coma appears like a diffuse patch, inner coma weakly condensed; No tail. Enhances in Swan Band filter]
2015 May  05.76 UT: m1=9.8, Dia.=3.0, DC=3; 40.6cm L f/4 (76x); Paul Camilleri (Warners Bay, NSW, Australia)
2015 May  05.74 UT: m1=9.9, Dia.=2.8’, DC=2/; 25cm L f:5 (39x); Chris Wyatt (Walcha, NSW, Australia) [Moonlight; Coma diffuse with slightly brighter centre, moderately condensed, enhances well in Swan Band filter]
2015 May  02.78 UT: m1=10.2, Dia.=1.2′, DC=2/; 40.0cm L f/4.5 (144x); Seiichi Yoshida (Gunma, Japan)
2015 May  01.34 UT: m1=9.4, Dia.=2.5′, DC=3; 18cm L (57x); Alexandre Amorim (Florianopolis, Brazil)
2015 May  01.31 UT: m1=9.3, Dia.=4′, DC=4; 10 B (20X); Marco Antonio Coelho Goiato (Araçatuba, Brazil)
2015 Apr. 27.73 UT: m1=9.4, Dia.=3.1’, DC=4; 25cm L f:5 (39x); Chris Wyatt (Walcha, NSW, Australia) [No tail; Coma enhances moderately in Swan Band filter, shows a diffuse outer coma, brighter inner coma with moderately condensed centre]
2015 Apr. 27.36 UT: m1=9.3, Dia.=2′, DC=3; 18cm L (57x); Alexandre Amorim (Florianopolis, Brazil)
2015 Abr. 26.76 UT: m1=9.2, Dia.=3.8, DC=4; 40.6cm L f/4 (76x); Paul Camilleri (Warners Bay, NSW, Australia)
2015 Abr. 25.76 UT: m1=9.3, Dia.=3.5′, DC=3/; 40.6cm L f/4 (76x); Paul Camilleri (Warners Bay, NSW, Australia)
2015 Apr. 25.33 UT: m1=9.4, Dia.=3′, DC=3; 18cm L (57x); Alexandre Amorim (Florianopolis, Brazil)
2015 Apr. 24.81 UT: m1=9.8: CCD, Dia.=&5.3′, Tail=&15.5′ in PA 245 deg; [T12]0.11m f/5.0 refractor + CCD; A. Novichonok & T. Prystavski (iTelescope observatory, Q62 remotely from Siding Spring, Australia))
2015 Abr. 23.78 UT: m1=9.0, Dia.=4.0′, DC=2; 40.6cm L f/4 (76x); Paul Camilleri (Warners Bay, NSW, Australia)
2015 Apr. 22.33 UT: m1=9.2, Dia.=4′, DC=4; 10 B (20X); Marco Antonio Coelho Goiato (Araçatuba, Brazil)
2015 Apr. 21.34 UT: m1=9.2, Dia.=5′, DC=4; 10 B (20X); Marco Antonio Coelho Goiato (Araçatuba, Brazil) [clouds]
2015 Apr. 21.33 UT: m1=9.3, Dia.=5′, DC=4/; 22-cm L (60x); Marco Antonio Coelho Goiato (Araçatuba, Brazil) [clouds]
2015 Apr. 19.80 UT: m1=9.3, Dia.=4′, DC=3/; 25×100 B; Michael Mattiazzo (Swan Hill, Victoria, Australia) [Tycho 2 VT magnitude comparisons. Sidgwick method]
2015 Abr. 15.78 UT: m1=9.0, Dia.=2.5′, DC=2/; 40.6cm L f/4 (76x); Paul Camilleri (Warners Bay, NSW, Australia)
2015 Apr. 15.75 UT: m1=9.3, Dia.=3.4’, DC=4; 25cm L f:5 (39x); Chris Wyatt (Walcha, NSW, Australia) [Moonlight; Enhances well in Swan Band filter. Faint background star in coma (mag 11.8, 0.9’ away in PA 036°). Coma pale aqua-blue in colour]
2015 Apr. 12.33 UT: m1=9.3, Dia.=3.5′, DC=4; 22-cm L (60x); Marco Antonio Coelho Goiato (Araçatuba, Brazil) [Moonlight, slightly enhanced with Swan band filter]
2015 Apr. 12.32 UT: m1=9.5, Dia.=2′, DC=3; 18cm L (57x); Alexandre Amorim (Florianopolis, Brazil) [moonlight interference]
2015 Apr. 11.33 UT: m1=9.5, Dia.=1′, DC=4; 18cm L (57x); Alexandre Amorim (Florianopolis, Brazil) [moonlight interference]
2015 Apr. 10.34 UT: m1=9.2:, Dia.=1′, DC=4; 18cm L (57x); Alexandre Amorim (Florianopolis, Brazil) [moonlight interference]
2015 Apr. 09.73 UT: m1=9.8, Dia.=3.2’, DC=3/; 25cm L f:5 (39x); Chris Wyatt (Walcha, NSW, Australia) [Moonlight; Coma diffuse with a weak but definite brightening to centre. Enhances in Swan Band filter]
2015 Apr. 09.35 UT: m1=9.0, Dia.=2′, DC=4; 18cm L (45x); Alexandre Amorim (Florianopolis, Brazil) [moonlight interference]
2015 Apr. 08.72 UT: m1=9.6, Dia.=2.7’, DC=3; 25cm L f:5 (39x); Chris Wyatt (Walcha, NSW, Australia) [Moonlight; No tail, coma diffuse with slightly brighter centre, weakly condensed, enhances in Swan Band filter]
2015 Apr. 08.33 UT: m1=9.0, Dia.=2′, DC=4; 18cm L (45x); Alexandre Amorim (Florianopolis, Brazil) [moonlight interference]
2015 Apr. 07.15 UT: m1=10.2 CCD, Dia.=3′, DC=3; Digital reflex + 0,3m lens; Giuseppe Pappa (Sicily, Italy) [only 7° above the horizon during the nautical dawn]
2015 Apr. 03.31 UT: m1=8.8, Dia.=4′, DC=4; 22-cm L (60x); Marco Antonio Coelho Goiato (Araçatuba, Brazil) [ Moonlight, clouds ]
2015 Apr. 01.80 UT: m1=10.7: CCD Dia.=&2.0′, Tail=&5.9′ in PA 255 deg; [T31] 0.50-m f/6.8 astrograph + CCD + focal reducer; A. Novichonok & T. Prystavski (iTelescope observatory, Q62 remotely from Siding Spring, Australia) [Morning twilight]
2015 Mar. 29.31 UT: m1=8.9, Dia.=5′, DC=4; 10 B (20X); Marco Antonio Coelho Goiato (Araçatuba, Brazil)
2015 Mar. 27.72 UT: m1=9.8, Dia.=3.5’, DC=3/; 25cm L f:5 (39x); Chris Wyatt (Walcha, NSW, Australia) [Coma appears slightly elongated to NW, moderately condensed. At x83 a background star in coma present (13.5 mag – UCAC 3); No tail. Low altitude = 12.4°]
2015 Mar. 26.74 UT: m1=9.1, Dia.=2′; 25×100 B; David A. J. Seargent (Cowra, NSW, Australia) [Comet enhanced through Swan Band filter]
2015 Mar. 26.33 UT: m1=8.8, Dia.=2′, DC=3; 18cm L (45x); Alexandre Amorim (Florianopolis, Brazil)
2015 Mar. 25.38 UT: m1=10.2, Dia.=3.7′, DC=3/; 25cm L f/4.5 (40x); Gonzalo Vargas B. (Cochabamba, Bolivia)
2015 Mar. 25.32 UT: m1=8.8, Dia=2′, DC=2; 18cm L (45x); Alexandre Amorim (Florianopolis, Brazil)
2015 Mar. 22.31 UT: m1=9.5, Dia.=3′, DC=4/; 22-cm L (60x); Marco Antonio Coelho Goiato (Araçatuba, Brazil) [Better visualization with Swan band filter]
2015 Mar. 19.32 UT: m1=9.5:, DC=1/; 18cm L (57x); Alexandre Amorim (Florianopolis, Brazil)
2015 Mar. 02.77 UT: m1=10.7: CCD Dia.=&3.5′, Tail=&6.9′ in PA 258 deg; [T31] 0.50-m f/6.8 astrograph + CCD + focal reducer; A. Novichonok & T. Prystavski (iTelescope observatory, Q62 remotely from Siding Spring, Australia)
2015 Mar. 01.33 UT: m1=10.5, Dia.=2.5′, DC=4;  22-cm L (60x); Marco Antonio Coelho Goiato (Araçatuba, Brazil)
2015 Feb. 22.30 UT: m1=10.8, Dia.=2′, DC=3; 22cm L (160x); Marco Antonio Coelho Goiato (Araçatuba, Brazil)
2015 Jan. 30.77 UT: m1=12.8 CCD, Dia.=1.1′; [T31] 0.50-m f/6.8 astrograph + CCD + focal reducer; A. Novichonok & T. Prystavski (iTelescope observatory, Q62 remotely from Siding Spring, Australia)
2015 Jan. 25.77 UT: m1=12.9: CCD, Dia.=&0.9′; [T31] 0.50-m f/6.8 astrograph + CCD + focal reducer; A. Novichonok & T. Prystavski (iTelescope observatory, Q62 remotely from Siding Spring, Australia)
2015 Jan. 24.73 UT: m1=12.7, Dia.=0.8’, DC=2; 25cm L f:5 (83x); Chris Wyatt (Walcha, NSW, Australia) [Very small and diffuse, no tail]
81P/Wild 2 ( observaciones)
2015 Dec. 30.49 UT: m1=13.6, Dia.=0.6’, DC=1/; 25-cm L f:5 (83x); Chris Wyatt (Walcha, NSW, Australia) [Difficult due to proximity of bright stars, diffuse coma, slight brightening to centre, no tail]
2015 Dec. 29.47 UT: m1=13.2, Dia.=0.5’, DC=1; 25-cm L f:5 (166x); Chris Wyatt (Walcha, NSW, Australia) [Coma very diffuse, difficult, no tail. Visible at x83 but hard to make measurements]
70P/Kojima ( observaciones)
2015 May  21, 22:40:08 UT: m1=17.0 CCD + R filter, Dia.=10″, DC=4; Alexander Baransky (Kyiv comet station MPC 585, Ukraine)
2015 May  05, 22:43:58 UT: m1=15.6 CCD + R filter, Dia.=17″, DC=6; Alexander Baransky (Kyiv comet station MPC 585, Ukraine)
2015 Apr. 20.96 UT: m=16.5 CCD + R filter, Dia.=12″, DC 3; 70-cm f/4 L + CCD; Alexander Baransky (Kyiv comet station MPC 585, Ukraine)
2015 Apr. 10.96 UT: m=15.9 CCD + R filter, Dia.=15″, Tail=1′ in PA: 321 deg.; 70-cm f/4 L + CCD; Alexander Baransky (Kyiv comet station MPC 585, Ukraine)
2015 Apr. 09.93 UT: m1=16.2: CCD Dia.=&0.7′; 0.7-m f/4.0 reflector + CCD; S. Nazarov & T. Prystavski (Crimean Astrophysical Observatory, MPC 095 (Crimea-Nauchnij)
2015 Mar. 28.46 UT: m1=15.6 CCD, Dia.=0.5′; [T20] 0.1-m f/5.0 astrograph + CCD; A. Novichonok & T. Prystavski (iTelescope observatory, H06 remotely from Mayhill, U.S.A.)
2015 Mar. 24.06 UT: m=15.3 CCD + R filter, Dia.=30″,DC=5, Tail=4′ in PA: 280 deg.; 70-cm f/4 L + CCD; Alexander Baransky (Kyiv comet station (MPC 585), Ukraine)
2015 Mar. 18.90 UT: m1=15.2, Dia.=0.3′, DC=3; 50.8 cm L (307x) ; Sandor Szabo (Sopron, Hungary)
2015 Mar. 17.08 UT: m=15.3 CCD + R filter, Dia.=27″, FanTail=1′ in PA: 220-317 deg.; 70-cm f/4 L + CCD; Alexander Baransky (Kyiv comet station (MPC 585), Ukraine)
2015 Feb. 18.03 UT: m1=15.8 CCD + R filter, Dia.=28″, DC 5, Tail=1’20” in PA: 296 deg.; 70-cm f/4 L + CCD; Alexander Baransky (Kyiv comet station MPC 585, Ukraine)
2015 Feb. 15.43 UT: m1=15.8 CCD, Dia.=0.5′; [T20] 0.1-m f/5.0 astrograph + CCD; A. Novichonok & T. Prystavski (iTelescope observatory, H06 remotely from Mayhill, U.S.A.)
2015 Feb. 11.12 UT: m1=15.9 CCD + R filter, Dia.=24″, Tail 1′ in PA 299 deg.; 70-cm f/4 L + CCD; Alexander Baransky, Kyiv comet station (MPC 585), Ukraine)
2015 Jan. 17.54 UT: m1=15.7 CCD, Dia.=0.5′; [T20] 0.1-m f/5.0 astrograph + CCD; A. Novichonok & T. Prystavski (iTelescope observatory, H06 remotely from Mayhill, U.S.A.)67P/Churyumov-Gerasimenko ( observaciones)
2015 Nov. 20.73 UT: m1=12.5, Dia.=1.6′, DC=3; 40.0-cm L f/4.5 (144x); Seiichi Yoshida (Gunma, Japan)
2015 Nov. 12.09 UT: m1=13.3, Dia.=0.9′, DC=3, Tail=1.2’ long to PA: 160 deg.; 60.3-cm L (305x); Sandor Szabo (Sopron, Hungary)
2015 Oct. 15.14 UT: m1=11.7, Dia.=1.3′, DC=3; 20-cm SCT (100x); Juan José González (Alto del Castro, alt. 1720 m, León, España) [Altura sobre el horizonte: 16º. Estrellas de comparación tomadas de la fotometría APASS cercana al cometa. Cielo muy claro de montaña]
2015 Oct. 11.78 UT: m1=13.0, Dia.=1.0′, DC=3; 40.0-cm L f/4.5 (144x); Seiichi Yoshida (Gunma, Japan)
2015 Sep. 28.48 UT: m1=11.8: CCD, Dia.=&1.4′, Tail=&1.5′ in PA: 305 deg.; [T20] 0.1-m f/5.0 astrograph + CCD; A. Novichonok & T. Prystavskiv(iTelescope observatory, H06 remotely from Mayhill, U.S.A.) [interference by Moon: Moon phase 1.00, altitude 23 deg.]
2015 Sep. 25.50 UT: m1=11.5, Dia.=0.8′, DC=5; 35.5-cm (93x); Carl Hergenrother (Tucson, AZ, USA)
2015 Sep. 21.77 UT: m1=11.1, Dia.=1.6′, DC=5; 40.0-cm L f/4.5 (144x); Seiichi Yoshida (Gunma, Japan)
2015 Sep. 18.13 UT: m1=11.6, Dia.=1.2′, DC=4; 32.0-cm L f/5 (96x); Uwe Pilz (Leipzig, Germany)
2015 Sep. 13.48 UT: m1=12.0 CCD, Dia.=1.4′, Tail=4.0′ in PA: 287 deg.; [T20] 0.1-m f/5.0 astrograph + CCD; A. Novichonok & T. Prystavski (iTelescope observatory, H06 remotely from Mayhill, U.S.A.)
2015 Sep. 13.10 UT: m1=12.5, Dia.=1.0′, DC=5; 60.3-cm L (87x); Sandor Szabo (Sopron, Hungary) [Tail is 1’ long to the East, starlike false nuceus is 14.5 mag]
2015 Sep. 08.16 UT: m1=11.2, Dia.=1.1′, DC=5; 20-cm SCT (100x); Juan José González (Alto del Castro, alt. 1720 m, León, España) [Cierta interferencia de la luz lunar. Altura sobre el horizonte: 20º. Cielo muy claro de montaña]
2015 Aug. 26.46 UT: m1=11.9: CCD, Dia.=&1.4′, Tail=2.4′ in PA: 278 deg.; [T20] 0.1-m f/5.0 astrograph + CCD; A. Novichonok & T. Prystavski (iTelescope observatory, H06 remotely from Mayhill, U.S.A.)
2015 Aug. 23.84 UT: m1=12.1 (Tri-G), Dia.=1.0′; Nikon 5200 + 135-mm lens; Artyom Novichonok (Konchezero, Russia)
2015 Aug. 21.09 UT: m1=11.4, Dia.=1.5′, DC=3, Tail= — PA: 342 deg.; 32.0-cm L f/5 (120x); Uwe Pilz (Leipzig, Germany)
2015 Aug. 19.17 UT: m1=12.2, Dia.=0.7′, DC=5; 20-cm SCT (133x); Juan José González (Cueto Rosales, alt. 1420 m, León, España) [Movimiento seguido durante 30 minutos. Estrellas de comparación de la fotometría APASS cercana al cometa. Estrellas de campo comprobadas en el DSS. Luz Zodiacal. Comienzo del crepúsculo astronómico. Altura sobre el horizonte: 23º. Cielo muy claro de montaña]
2015 Aug. 16.97 UT: m1=12.2 CCD, Dia.=0.7′, Tail=0.6′ in PA: 284 deg.; 0.07-m f/6 refractor + CCD; A. Novichonok, K. Nezgovorov & T. Prystavski (Petrozavodsk State University Observatory, C30 Sheltozero Stn., Russia)
2015 Aug. 15.08 UT: m1=12.8, Dia.=0.8′, DC=4; 60.3-cm L (187x); Sandor Szabo (Sopron, Hungary)
2015 Aug. 13.80 UT: m1=12.4, Dia.=0.8’, DC=3/; 25cm L f:5 (83x); Chris Wyatt (Walcha, NSW, Australia) [Close to mag 12.2 star, 0.8’ away in P.A. 253°; Coma diffuse with moderately condensed centre, does not enhance in Swan Band filter, no tail. Low altitude – 12.4°, slight twilight and zodiacal light interference]
2015 Aug. 11.79 UT: m1=12.6, Dia.=1.0’, DC=3; 25cm L f:5 (83x); Chris Wyatt (Walcha, NSW, Australia) [Coma small, circular in appearance and diffuse with slightly brighter central condensation. No tail. Low altitude = 11.3°; Moonlight, zodiacal light interference. Coma does not enhance in Swan Band filter]
2015 July 26.84 UT: m1=13.4: CCD Dia.=&0.3′; [T31] 0.50-m f/6.8 astrograph + CCD + focal reducer; A. Novichonok & T. Prystavski (iTelescope observatory, Q62 remotely from Siding Spring, Australia) [morning twilight: Sun alt. -11 deg.]
2015 July 22.05 UT: m1=13.1, Dia.=0.6′, DC=4; 60.3 cm L (244x); Sandor Szabo (Sopron, Hungary)
2015 June 27.81 UT: m1=14.0, Dia.=0.6’, DC=2/; 25cm L f:5 (83x); Chris Wyatt (Walcha, NSW, Australia) [Coma very diffuse, difficult due to seeing conditions and zodiacal light interference; limiting magnitude= 14.5. Opaque inner coma, even surface brightness with faint outer coma. Altitude = 20.9°]
2015 June 22.81 UT: m1=14.2, Dia.=0.5’, DC=2/; 25cm L f:5 (83x); Chris Wyatt (Walcha, NSW, Australia) [Very difficult; zodiacal light ineteference, limiting magnitude= 14.5. Observed over a split 35 minute period, visible in good seeing. Altitude= 21.3°]
2015 May  05.77 UT: m1=[13.0; 25cm L f:5 (83x); Chris Wyatt (Walcha, NSW, Australia) [Moonlight; Fainter than mag 13 star; Altitude = 12.1°; Limiting magnitude = 13.0. Conditions clear with below average seeing at comet altitude]

65P/Gunn ( observaciones)
2015 Mar. 24.00 UT: m1=17.9 CCD + R filter, Dia.=13″, DC 2; 70-cm f/4 L + CCD; Alexander Baransky (Kyiv comet station MPC 585, Ukraine)
2015 Mar. 16.98 UT: m1=17.3 CCD + R filter, Dia.=8″, DC 8; 70-cm f/4 L + CCD; Alexander Baransky (Kyiv comet station MPC 585, Ukraine)
2015 Mar. 10.93 UT: m1=17.6 CCD + R filter, Dia.=8″, DC 8. FanTail=26″ in PA: 232-349 deg.; 70-cm f/4 L + CCD; Alexander Baransky (Kyiv comet station MPC 585, Ukraine)
2015 Feb. 17.04 UT: m1=18.0 CCD + R filter, Dia.=7″, DC 8; 70-cm f/4 L + CCD; Alexander Baransky (Kyiv comet station MPC 585, Ukraine)

61P/Shajn-Schaldach ( observaciones)
2015 Nov. 11.96 UT: m1=14.5, Dia.=0.6′, DC=1; 50.8-cm L (307x); Sandor Szabo (Sopron, Hungary)
2015 Oct. 06.73 UT: m1=15.2 CCD, Dia.=0.6′, Tail=&2.8′ in PA: 257 deg.; [T31] 0.50-m f/6.8 astrograph + CCD + focal reducer; A. Novichonok & T. Prystavski (iTelescope observatory, Q62 remotely from Siding Spring, Australia)
2015 Sep. 13.41 UT: m1=14.9 CCD, Dia.=0.6′, Tail=&1.6′ in PA: 257 deg.; [T20] 0.1-m f/5.0 astrograph + CCD; A. Novichonok & T. Prystavski (iTelescope observatory, H06 remotely from Mayhill, U.S.A.)
2015 Sep. 12.97 UT: m1=15.3, Dia.=0.6′, DC=2; 60.3-cm L (305x); Sandor Szabo (Sopron, Hungary)
2015 Aug. 22.65 UT: m1=15.8 CCD, Dia.=0.5′, Tail=1.6′ in PA: 255 deg.; [T31] 0.50-m f/6.8 astrograph + CCD + focal reducer; A. Novichonok & T. Prystavski (iTelescope observatory, Q62 remotely from Siding Spring, Australia)
2015 July 22.15 UT: m1=16.4: CCD, Dia.=0.4′ Tail=1.8′ in PA: 259 deg.; [T16] 0.15-m f/7.3 refractor + CCD; A. Novichonok & T. Prystavski (AstroCamp Observatory, I89 remotely from Nerpio, Spain)
2015 July 22.03 UT: m1=[15.5, NEGATIVE; 60.3 cm L (406x); Sandor Szabo (Sopron, Hungary)

57P/du Toit-Neujmin-Delporte ( observaciones)
2015 Oct. 10.65 UT: m1=15.3 CCD, Dia.=0.8′, Tail=&1.0′ in PA: 247 deg.; [T31] 0.50-m f/6.8 astrograph + CCD + focal reducer; A. Novichonok & T. Prystavski (iTelescope observatory, Q62 remotely from Siding Spring, Australia)
2015 Sep. 13.06 UT: m1=15.1, Dia.=0.6′, DC=2; 60.3-cm L (244x); Sandor Szabo (Sopron, Hungary)
2015 Aug. 19.99 UT: m1=16.4: CCD, Dia.=&0.2′; 0.08-m f/7.5 refractor + CCD; A. Novichonok, T. Prystavski (Konchezero Stn., Republic of Karelia, Russia)
2015 Aug. 16.96 UT: m1=15.7: CCD, Dia.=0.4′; 0.07-m f/6 refractor + CCD; A. Novichonok, K. Nezgovorov & T. Prystavski (Petrozavodsk State University Observatory, C30 Sheltozero Stn., Russia)
2015 July 25.14 UT: m1=15.2 CCD, Dia.=0.7′ Tail=3.4′ in PA: 246 deg.; [T16] 0.15-m f/7.3 refractor + CCD; A. Novichonok & T. Prystavski (AstroCamp Observatory, I89 remotely from Nerpio, Spain)
2015 July 21.99 UT: m1=15.3, Dia.=0.3′, DC=3; 60.3 cm L (305x); Sandor Szabo (Sopron, Hungary)
2015 July 12.00 UT: m1=14.6, Dia.=1.0′, DC=4; 35-cm L (178x); Jakub Černý (Zachotin, Czech Republic)
2015 Apr. 24.78 UT: m1=17.2: CCD, Dia.=0.2′, Tail=0.4′ in PA 244 deg; [T17] 0.43-m f/6.8 astrograph + CCD; A. Novichonok & T. Prystavski (iTelescope observatory, Q62 remotely Siding Spring, Australia)
2015 Apr. 01.80 UT: m1=16.6: CCD, Dia.=0.25′; [T17] 0.43-m f/6.8 astrograph + CCD; A. Novichonok & T. Prystavski (iTelescope observatory, Q62 remotely Siding Spring, Australia)

53P/Van Biesbroeck ( observaciones)
2015 May  25.92 UT: m1=16.8 CCD + R filter, Dia.=18″, DC=4, Tail=1′.2 in PA: 76 deg.; 70-cm f/4 L + CCD; Alexander Baransky (Kyiv comet station MPC 585, Ukraine) [Tail=curved CCW.]
2015 May  05.99 UT: m1=16.0 CCD + R filter,  Dia.=17″, DC=5; 70-cm f/4 L + CCD; Alexander Baransky (Kyiv comet station MPC 585, Ukraine) [Fan-like coma]
2015 Apr. 21.97 UT: m1=16.5 CCD + R filter, Dia.=10″, DC 5; 70-cm f/4 L + CCD; Alexander Baransky (Kyiv comet station MPC 585, Ukraine)
2015 Apr. 11.02 UT: m1=16.8 CCD + R filter, Dia.=9″, DC 7, Tail=1′ in PA: 336 deg.; 70-cm f/4 L + CCD; Alexander Baransky (Kyiv comet station MPC 585, Ukraine)
2015 Mar. 17.11 UT: m1=17.2 CCD + R filter, Dia.=9″, DC 6, Tail=15″ in PA: 335-83 deg.; 70-cm f/4 L + CCD; Alexander Baransky (Kyiv comet station MPC 585, Ukraine)
2015 Feb. 18.07 UT: m1=17.9 CCD + R filter, Dia.=9″, DC 5; 70-cm f/4 L + CCD; Alexander Baransky (Kyiv comet station MPC 585, Ukraine)

51P/Harrington (1 observación)
2015 Jun. 13.81 UT: m1=16.3 CCD Dia.=0.4′ Tail=0.6′ in PA: 244 deg.; [T31] 0.50-m f/6.8 astrograph + CCD + focal reducer; A. Novichonok & T. Prystavski (iTelescope observatory, Q62 remotely from Siding Spring, Australia)

50P/Arend ( observaciones)
2015 Oct. 10.65 UT: m1=17.3 CCD; [T31] 0.50-m f/6.8 astrograph + CCD + focal reducer; A. Novichonok & T. Prystavski (iTelescope observatory, Q62 remotely from Siding Spring, Australia)
2015 Aug. 18.50 UT: m1=17.9 CCD, Dia.=0.2′; [T31] 0.50-m f/6.8 astrograph + CCD + focal reducer; A. Novichonok & T. Prystavski (iTelescope observatory, Q62 remotely from Siding Spring, Australia)

44P/Reinmuth ( observaciones)
2015 Aug. 27.77 UT: m1=17.8 CCD, Dia.=0.2′, Tail=0.2′ in PA: 258 deg.; [T31] 0.50-m f/6.8 astrograph + CCD + focal reducer; A. Novichonok & T. Prystavski (iTelescope observatory, Q62 remotely from Siding Spring, Australia)
2015 Aug. 19.93 UT: m1=17.2: CCD, Dia.=&0.2′; 0.08-m f/7.5 refractor + CCD; A. Novichonok, T. Prystavski  Konchezero Stn., Republic of Karelia, Russia

40P/Vaisala ( observaciones)
2015 May  21.02 UT: m1=17.8 CCD + R filter, Dia.=11″, DC=3s, Fantail=16″ in PA: 267-40 deg.; 70-cm f/4 L + CCD; Alexander Baransky (Kyiv comet station MPC 585, Ukraine)
2015 Mar. 28.47 UT: m1=16.7 CCD, Dia.=0.3′; [T20] 0.1-m f/5.0 astrograph + CCD; A. Novichonok & T. Prystavski (iTelescope observatory, H06 remotely from Mayhill, U.S.A.)
2015 Feb. 18.10 UT: m1=16.4 CCD + R filter, Dia.=16″, DC 5, Tail=50″ in PA: 236-306 deg.; 70-cm f/4 L + CCD; Alexander Baransky (Kyiv comet station MPC 585, Ukraine) [Conical tail]
2015 Feb. 15.49 UT: m1=16.6 CCD, Dia.=0.3′; [T20] 0.1-m f/5.0 astrograph + CCD; A. Novichonok & T. Prystavski (iTelescope observatory, H06 remotely from Mayhill, U.S.A.)
2015 Jan. 06.51 UT: m1=15.6: CCD, Dia.=&0.4′; [T20] 0.1-m f/5.0 astrograph + CCD; A. Novichonok, T.Prystavski, N. Teymurov (iTelescope observatory, H06 remotely from Mayhill, U.S.A.) [interference by Moon: Moon phase 0.98, altitude 33 deg.]

32P/Comas Solá ( observaciones)
2015 June 05.92 UT: m1=16.4: CCD, Dia.=&0.3′ Tail=0.4′ in PA 113 deg.; [T16] 0.15-m f/7.3 refractor + CCD; A. Novichonok & T. Prystavski (AstroCamp Observatory, I89 remotely from Nerpio, Spain)
2015 May  21.92 UT: m1=15.4 CCD + R filter, Dia.=12″, DC=4, Tail=48″ in PA: 130 deg.; 70-cm f/4 L + CCD; Alexander Baransky (Kyiv comet station MPC 585, Ukraine)
2015 May  05.93 UT: m1=15.2 CCD + R filter, Dia.=26″, DC=5, Tail=1′.1 in PA: 136 deg.; 70-cm f/4 L + CCD; Alexander Baransky (Kyiv comet station MPC 585, Ukraine)
2015 Apr. 24.94 UT: m1=14.8 CCD + R filter, Dia.=12″, DC 6, Tail=1′ in PA: 162 deg.; 70-cm f/4 L + CCD; Alexander Baransky (Kyiv comet station MPC 585, Ukraine) [Tail curved at CCW]
2015 Apr. 20.95 UT: m1=15.1 CCD + R filter, Dia.=12″, DC 6, Tail=6′ in PA: 260-298 deg.; 70-cm f/4 L + CCD; Alexander Baransky (Kyiv comet station MPC 585, Ukraine)
2015 Apr. 12.83 UT: m1=15.2, Dia.=0.3′, DC=7; 40cm L (250x); Sandor Szabo (Sopron, Hungary)
2015 Apr. 09.44 UT: m1=14.2: CCD, Dia.=&0.8′; [T17] 0.43-m f/6.8 astrograph + CCD; A. Novichonok & T. Prystavski (iTelescope observatory, Q62 remotely Siding Spring, Australia)
2015 Mar. 24.03 UT: m1=14.3 CCD + R filter, Dia.=55″, DC 5, Tail=> 9′ in PA: 191-309 deg.; 70-cm f/4 L + CCD; Alexander Baransky (Kyiv comet station MPC 585, Ukraine) [Tail curved at CCW.]
2015 Mar. 17.88 UT: m1=14.1, Dia.=1.2′, DC=1; 50.8 cm L (307x); Sandor Szabo (Sopron, Hungary)
2015 Mar. 17.06 UT: m1=13.9 CCD + R filter, Dia.=58″, DC 5, Tail=> 9′ in PA: 232-306 deg.; 70-cm f/4 L + CCD; Alexander Baransky (Kyiv comet station MPC 585, Ukraine)
2015 Mar. 14.45 UT: m1=13.5, Dia.=1’, DC=2; 25cm L f:5 (83x); Chris Wyatt (Walcha, NSW, Australia) [Coma diffuse, even suface brightness across coma with a slightly brighter but very weak centre, no tail]
2015 Mar. 11.91 UT: m1=13.5 CCD, Dia.=1.5′ Tail=&14′ in PA 284 deg; [T16] 0.15-m f/7.3 refractor + CCD; A. Novichonok & T. Prystavski (AstroCamp Observatory, I89 remotely from Nerpio, Spain)
2015 Mar. 10.99 UT: m1=13.8 CCD + R filter, Dia.=45″, DC 6, Tail=5′ in PA: 237-297 deg.; 70-cm f/4 L + CCD; Alexander Baransky (Kyiv comet station MPC 585, Ukraine)
2015 Mar. 06.04 UT: m1=14.1 CCD + R filter, Dia.=34″, DC 4, Tail=6′ in PA: 258-293 deg.; 70-cm f/4 L + CCD; Alexander Baransky (Kyiv comet station MPC 585, Ukraine)
2015 Feb. 18.14 UT: m1=13.7 CCD + R filter, Dia.=53″, DC 6, Tail: >10′ in PA: 270 deg.; 70-cm f/4 L + CCD; Alexander Baransky (Kyiv comet station MPC 585, Ukraine)
2015 Feb. 17.07 UT: m1=13.7 CCD + R filter, Dia.=54″, DC 6, Tail=6′ in PA: 236-31 deg.; 70-cm f/4 L + CCD; Alexander Baransky (Kyiv comet station MPC 585, Ukraine)
2015 Feb. 15.86 UT: m1=13.4, Dia.=1′.2, DC=4, 35 cm reflector (239x); Jakub Cerný (Zachotin, Czech Republic)
2015 Feb. 14.45 UT: m1=13.4 CCD, Dia.=1.4′, Tail=21.8′ in PA 287 deg; [T20] 0.1-m f/5.0 astrograph + CCD; A. Novichonok & T. Prystavski (iTelescope observatory, H06 remotely from Mayhill, U.S.A.)
2015 Jan. 20.47 UT: m1=13.8 CCD, Dia.=0.95′, Tail=&22′ in PA 289 deg; [T20] 0.1-m f/5.0 astrograph + CCD; A. Novichonok & T. Prystavski (iTelescope observatory, H06 remotely from Mayhill, U.S.A.)
2015 Jan. 17.60 UT: m1=14.0, Dia.=0.5’, DC=1/; 25cm L f:5 (x83); Chris Wyatt (Walcha, NSW, Australia) [Coma small and diffuse, difficult, visible in periods of good seeing]
2015 Jan. 15.09 UT: m1=14.2 CCD + R filter, Dia.=42″, DC 6, Tail=5′ in PA: 289 deg.; 70-cm f/4 L + CCD; Alexander Baransky (Kyiv comet station MPC 585, Ukraine)

29P/Schwassmann-Wachmann 1 ( observaciones)
2015 Nov. 06.42 UT: m1=[14.5, negative; 25-cm L f:5 (166x); Chris Wyatt (Walcha, NSW, Australia) [Comet not visible, crowded star field, zodiacal light, very difficult. Limiting magnitude = 14.5.]
2015 Oct. 09.43 UT: m1=12.6, Dia.=1’, DC=1; 25cm L f:5 (83x); Chris Wyatt (Walcha, NSW, Australia) [Coma very diffuse, close to mag 13.4 star. No tail]
2015 Oct. 05.42 UT: m1=12.3, Dia.=1.1’, DC=2/3; 25-cm L f:5 (83x); Chris Wyatt (Walcha, NSW, Australia) [Sky slightly hazy, coma diffuse with transparent outer coma, inner coma weakly condensed but opaque, no tail. Limiting magnitude = 14.1; m2 =>14.0]
2015 Oct. 03.43 UT: m1=13.2, Dia.=1’, DC=2/3; 25-cm L f:5 (83x); Chris Wyatt (Walcha, NSW, Australia) [No tail; does not enhance in Swan Band filter. Faint outer coma with a diffuse inner coma of even surface brightness. Limiting magnitude = 14.2; m2 =>14.0]
2015 Oct. 01.83 UT: Dia.=1.5′; 20-cm SCT (133x); Juan José González (Alto del Castro, alt. 1720 m, León, España ) [ En evolución después de los dos recientes outbursts. Estimación de la magnitud m1 no realizada a causa de dos estrellas en la coma, de magnitudes 12.0 y 13.1 (GSC). Altura sobre el horizonte: 10º. Cielo muy claro de montaña]
2015 Sep. 22.41 UT: m1=13.0, Dia.=0.2’, DC=6; 25-cm L f:5 (166x); Chris Wyatt (Walcha, NSW, Australia) [Moonlight, Outburst; Coma does not enhance using Swan Band filter, faint stellar central condensation, approximate m2 = 13.3; Limiting magnitude = 14.0. Coma pale blue in colour]
2015 Aug. 08.91 UT: m1=12.3, Dia.=1.1′, DC=2/; 20-cm SCT (133x); Juan José González (Cueto Rosales, alt. 1420 m, León, España) [En evolución después del nuevo outburst. Estrellas de comparación de la fotometría APASS cercana al cometa]
2015 Aug. 07.37 UT: m1=11.9, Dia.=0.9’, DC=2; 25cm L f:5 (83x); Chris Wyatt (Walcha, NSW, Australia) [Coma does not enhance in Swan Band filter, circular in appearance, very diffuse and pale blue in colour]
2015 July 21.88 UT: m1=12.9, Dia.=0.8′, DC=3; 60.3 cm L (244x); Sandor Szabo (Sopron, Hungary)
2015 July 16.55 UT: m1=14.0, Dia.=0.7′, DC=5; 41-cm L f/4.5 (64x); John Drummond (Gisborne, New Zealand) [29P appears as a faint smudge with a central condensation/nucleus. Comet 50 degrees altitude in the W. Clear, dark rural sky, LM 6.5]
2015 July 13.95 UT: m1=13.5, Dia.=0.5′, DC=8; 20-cm SCT (222x); Juan José González (Santiago Millás, alt. 930 m, León, España) [Fuertemente condensado después del reciente outburst. Estrellas de comparación tomadas de la fotometría APASS cercana al cometa]
2015 July 11.92 UT: m1=12.5, Dia.=0.85′, DC=S8; 25-cm L (150x); Gábor Sánta (Zlatibor, Serbia) [(very dim and diffuse halo were observed, in outburst, nearly starlike, PN-like]
2015 July 10.88 UT: m1=13.5:, Dia.=1′, DC=0; 25-cm L (150x); Gábor Sánta (Zlatibor, Serbia) [very diffuse, among the northern stars of Scorpius]
2015 July 08.56 UT: m1=15.3: CCD, Dia.=&0.5′; [T17] 0.43-m f/6.8 astrograph + CCD; A. Novichonok & T. Prystavski (iTelescope observatory, Q62 remotely from Siding Spring, Australia)
2015 June 22.71 UT: m1=13.4, Dia.=1.0’, DC=1; 25cm L f:5 (83x); Chris Wyatt (Walcha, NSW, Australia] [Difficult; Coma very diffuse, crowded star field. No tail, no condensation available for m2 measurement, limiting magnitude= 14.6 (AQ)]
2015 June 19.63 UT: m1=13.0, Dia.=1.1’, DC=2/; 25cm L f:5 (83x); Chris Wyatt (Walcha, NSW, Australia) [Difficult; coma very diffuse with slightly brighter but weakly condensed centre. No tail]
2015 June 14.22 UT: m1= 17.8 CCD, Dia.=0.5’; Measures taken on CCD images unfiltered; Pierre Laporte (Cd’OA des Monts Notre-Dame, Québec, Canada)
2015 June 12.33 UT: m1=11.3: CCD, Dia.=&4.3′; [T20] 0.1-m f/5.0 astrograph + CCD; A. Novichonok & T. Prystavski (iTelescope observatory, H06 remotely from Mayhill, U.S.A.)
2015 May  31.80 UT: m1=12.5, Dia.=3.0′, DC=1; 40.6-cm L f/4 (165x); Paul Camilleri (Warners Bay, Australia)
2015 May  25.74 UT: m1=12.0, Dia.=2.0′, DC=0; 40.6-cm L f/4 (76x); Paul Camilleri (Warners Bay, Australia)
2015 May  23.76 UT: m1=12.0, Dia.=2.0′, DC=1; 40.6-cm L f/4 (165x); Paul Camilleri (Warners Bay, Australia)
2015 May  16.55 UT: m1=11.8, Dia.=1.4′, DC=1; 40.6-cm L f/4 (76x); Paul Camilleri (Warners Bay, Australia)
2015 May  16.21 UT: m1=11.3, Dia.=1.5′, DC=4; 22-cm L (120x); Marco Antonio Coelho Goiato (Araçatuba, Brazil)
2015 May  16.09 UT: m1=11.6, Dia.=1.0′, DC=6; 20cm SCT (100x); Juan José González (Cueto Rosales, alt. 1420 m, León, España) [En evolución después del reciente outburst]
2015 May  15.76 UT: m1=12.0, Dia.=1.2′, DC=2; 40.6-cm L f/4 (76x); Paul Camilleri (Warners Bay, Australia)
2015 May  14.71 UT: m1=12.1, Dia.=1’, DC=3/; 25cm L f:5 (83x); Chris Wyatt (Walcha, NSW, Australia) [Coma does not enhance in Swan Band filter, no tail. Outer coma diffuse, inner coma weakly condensed with a slightly brighter central condensation, pale blue in colour]
2015 May  13.77 UT: m1=11.8, Dia.=1.2′, DC=3; 40.6-cm L f/4 (76x); Paul Camilleri (Warners Bay, Australia)
2015 May  13.03 CCD + R filter, m1=11.3, Dia.=58″, DC=6; 70-cm f/4 L + CCD; Alexander Baransky (Kyiv comet station MPC 585, Ukraine)
2015 May  12.77 UT: m1=12.0, Dia.=1.4′, DC=2; 40.6-cm L f/4 (165x); Paul Camilleri (Warners Bay, Australia)
2015 May  12.48 UT: m1=12.0, Dia.=0.8’, DC=3/; 25cm L f:5 (83x); Chris Wyatt (Walcha, NSW, Australia) [Coma small, surface brightness across the coma is almost even, with a slightly brighter centre and faint outer coma. No tail. Inner coma faintly visible in Swan Band filter but otherwise the coma does not enhance overall]
2015 May  12.14 UT: m1=11.2, Dia.=1.25′, DC=5; 22-cm L (160x); Marco Antonio Coelho Goiato (Araçatuba, Brazil)
2015 May  11.98 UT: m1=11.8, Dia.=0.8′, DC=6; 50.8 cm L (189x); Sandor Szabo (Sopron, Hungary)
2015 May  11.75 UT: m1=11.8, Dia.=1.2′, DC=3; 40.6-cm L f/4 (165x); Paul Camilleri (Warners Bay, Australia)
2015 May  11.47 UT: m1=11.7, Dia.=0.7’, DC=4; 25cm L f:5 (83x); Chris Wyatt (Walcha, NSW, Australia) [Coma round and diffuse. Inner coma (about 0.5’ dia) even in surface brightness and opaque, outer coma thin and transparent, pale aqua-blue in colour. Does not enhance in Swan Band filter]
2015 May  11.35 UT: m1=11.8, Dia.=1′, DC=6; 18-cm L (57x); Alexandre Amorim (Florianopolis, Brazil) [moonlight]
2015 May  10.76 UT: m1=11.5, Dia.=1.0′, DC=4; 40.6cm L f/4 (165x); Paul Camilleri (Warners Bay, NSW, Australia)
2015 May  10.46 UT: m1=11.8, Dia.=0.5’, DC=6; 25cm L f:5 (83x): Chris Wyatt (Walcha, NSW, Australia) [Coma round and diffuse, small faint stellar centre with a broad opaque inner coma and a small transparent fuzzy outer coma edge. Slightly elongated to the NW. At x166 the coma is more evenly diffused like a DC of 2, the surface brightness is quite bright, opaque and even across 4/5ths of the coma diameter. Coma is greyish/pale-blue in colour at centre and fading at the edges where it is more transparent]
2015 May  09.77 UT: m1=11.6, Dia.=0.8′, DC=4; 40.6cm L f/4 (165x); Paul Camilleri (Warners Bay, NSW, Australia)
2015 May  08.79 UT: m1=11.7, Dia.=0.6’, DC=6; 25cm L f:5 (83x); Chris Wyatt (Walcha, NSW, Australia) [Moonlight. Stellar central condensation with faint diffuse outer coma, does not enhance in Swan Band filter]
2015 May  08.75 UT: m1=11.9, Dia.=0.5′, DC=5; 40.6cm L f/4 (165x); Paul Camilleri (Warners Bay, NSW, Australia)
2015 May  08.42 UT: m1=11.8, Dia.=0.5’, DC=6; 25cm L f:5 (83x); Chris Wyatt (Walcha, NSW, Australia) [Low altitude = 9.1°; Coma does not enhance in Swan Band filter. Coma small and round in appearance, stellar centre* whitish in colour with pale blue-grey fuzzy outer coma. At x166 the central condensation is more smeared like a DC of 3. *The coma centre is near a magnitude 12.9 star 0.2’ away in P.A. 354° according to Guide 9.0, but it was not easily distinguishable from the coma centre visually]
2015 May  07.78 UT: m1=12.0, Dia.=0.3′, DC=5; 40.6cm L f/4 (165x); Paul Camilleri (Warners Bay, NSW, Australia)
2015 May  07.53 UT: m1=12.1, Dia.=0.3’, DC=5/; 25cm L f:5 (166x); Chris Wyatt (Walcha, NSW, Australia) [Moonlight; Coma round in appearance, small, pale blue in colour, with disc-like central condensation sometimes appearing stellar in good seeing. Does not enhance in Swan Band filter; Comet in outburst]

22P/Kopff ( observaciones)
2015 Nov. 30.77 UT: m1=9.7, Dia.=3′, DC=1/; 20-cm SCT (77x); Juan José González (Alto del Trichero – Soto y Amío, alt. 1190 m, León, España) [Altura sobre el horizonte: 8º. Luz zodiacal. Cielo muy claro de montaña]
2015 Nov. 14.75 UT: m1=10.2, Dia.=3′, DC=2, no cola; 20-cm SCT (80x); Carlos Labordena (Castellón, España)
2015 Nov. 07.95 UT: m1=10.0, Dia.=3′, DC=2; 22-cm L (60X); Marco Antonio Coelho Goiato (Araçatuba, Brazil) [Near a star with m1: 11.2]
2015 Nov. 07.77 UT: m1=9.2, Dia.=4′, DC=2/; 20-cm SCT (77x); Juan José González (Alto del Cellerón – Camposagrado, alt. 1190 m, León, España) [Altura sobre el horizonte: 10º. Crepúsculo astronómico. Cielo muy claro de montaña]
2015 Nov. 06.41 UT: m1=12.5, Dia.=2.2’, DC=1; 25-cm L f:5 (83x); Chris Wyatt (Walcha, NSW, Australia) [Coma enhances slightly in Swan Band filter. No tail, very diffuse and difficult due to zodiacal light interference and a slightly hazy background sky]
2015 Oct. 19.72 UT: m1=9.8 DSRL, Dia.=3′, DC=2; Digital reflex+0.3m lens; Giuseppe Pappa (Sicily, Italy)
2015 Oct. 16.43 UT: m1=12.4, Dia.=1.3’, DC=2/; 25cm L f:5 (83x); Chris Wyatt (Walcha, NSW, Australia) [Observation difficult due to Moonlight, zodiacal light and low altitude = 16.8°. Coma diffuse with slightly more condensed centre visible in periods of good seeing. Slight cloud interference. Coma does not enhance in Swan Band filter]
2015 Oct. 16.38 UT: m1=12.4: CCD, Dia.=&1.7′; [T31] 0.50-m f/6.8 astrograph + CCD + focal reducer; A. Novichonok & T. Prystavski (iTelescope observatory, Q62 (remotely from Siding Spring, Australia)
2015 Oct. 14.94 UT: m1=9.5, Dia.=4′, DC=2; 22-cm L (60x); Marco Antonio Coelho Goiato (Araçatuba, Brazil)
2015 Oct. 14.80 UT: m1=9.0, Dia.=5′, DC=2; 20-cm SCT (77x); Juan José González (Alto del Castro, alt. 1720 m, León, España) [Altura sobre el horizonte: 10º. Crepúsculo astronómico. Cielo muy claro de montaña]
2015 Oct. 09.79 UT: m1=9.8, Dia.=3′, DC=2, no cola; 20-cm B (50x); Carlos Labordena (Castellón, España)
2015 Oct. 06.94 UT: m1=9.6, Dia.=4′, DC=3; 22-cm L (60x); Marco Antonio Coelho Goiato (Araçatuba, Brazil) [ No enhancement with comet filter ]
2015 Oct. 02.38 UT: m1=12.5 CCD, Dia.=2.2′, Tail= 1.1′ in PA: 107 deg.; [T31] 0.50-m f/6.8 astrograph + CCD + focal reducer; A. Novichonok & T. Prystavski (iTelescope observatory, Q62 remotely from Siding Spring, Australia)
2015 Oct. 01.81 UT: m1=9.5, Dia.=4′, DC=2/; 20-cm SCT (77x); Juan José González (Alto del Castro, alt. 1720 m, León, España) [Altura sobre el horizonte: 9º. Fin del crepúsculo astronómico. Cielo muy claro de montaña]
2015 Sep. 15.93 UT: m1=10.1, Dia.=2′, DC=2; 18cm L (45x); Alexandre Amorim (Florianopolis, Brazil)
2015 Sep. 14.92 UT: m1=10.1, Dia.=2′, DC=2; 18cm L (45x); Alexandre Amorim (Florianopolis, Brazil)
2015 Sep. 07.39 UT: m1=12.6 CCD, Dia.=2.0′, Tail=2.8′ in PA: 107 deg.; [T31] 0.50-m f/6.8 astrograph + CCD + focal reducer; A. Novichonok & T. Prystavski (iTelescope observatory, Q62 remotely from Siding Spring, Australia)
2015 Aug. 18.37 UT: m1=12.7 CCD, Dia.=2.0′, Tail=2.4′ in PA: 107 deg.; [T31] 0.50-m f/6.8 astrograph + CCD + focal reducer; A. Novichonok & T. Prystavski (iTelescope observatory, Q62 remotely from Siding Spring, Australia)
2015 Aug. 07.94 UT: m1=11.7, Dia.=2′, DC=3; 22-cm L (160x); Marco Antonio Coelho Goiato (Araçatuba, Brazil)
2015 Jul. 18.36 UT: m1=13.0: CCD, Dia.=&2.4′; [T31] 0.50-m f/6.8 astrograph + CCD + focal reducer; A. Novichonok & T. Prystavski (iTelescope observatory, Q62 remotely from Siding Spring, Australia)
2015 July 10.85 UT: m1=11.8, m2=13.4 (inner coma), m3=14.8 (starlike nucleus), Dia.=1.8′ (inner coma is 0.33′), DC=D5; 25-cm L (150x); Gábor Sánta (Zlatibor, Serbia) [very strong disk-shape inner coma]
2015 July 07.47 UT: m1=12.7, Dia.=1.7’, DC=2/; 25cm L f:5 (83x); Chris Wyatt (Walcha, NSW, Australia) [Coma very diffuse, transparent outer coma, slightly brighter centre that weakly condensed. Does not enhance in Swan Band filter]
2015 July 07.40 UT: m1=12.5, Dia.=0.8′, DC=2/; 30-cm f/5 Dobson 25mm; Con Stoitsis (Nagambie, Australia) [Coma very defussed and uniformed across]
2015 June 14.16 UT: m1=15.5 CCD, Dia.=0.6’; Measures taken on CCD images unfiltered; Pierre Laporte (Cd’OA des Monts Notre-Dame, Québec, Canada)
2015 June 09.39 UT: m1=13.5, Dia.=0.8′, DC=2; 40.6-cm L f/4 (165x); Paul Camilleri (Warners Bay, Australia)
2015 June 08.39 UT: m1=13.5, Dia.=0.7′, DC=3; 40.6-cm L f/4 (165x); Paul Camilleri (Warners Bay, Australia)
2015 June 07.36 UT: m1=13.5, Dia.=1.4’, DC=1/; 25cm L f:5 (83x); Chris Wyatt (Walcha, NSW, Australia) [Difficult, coma very diffuse, central condensation slightly brighter in good seeing, no tail. Galaxy M61 visible 27.8’ away in P.A. 272°]
2015 June 07.19 UT: m1=15.4 CCD, Dia.=0.6’; Measures taken on CCD images unfiltered; Pierre Laporte (Cd’OA des Monts Notre-Dame, Québec, Canada)
2015 June 06.37 UT: m1=13.5, Dia.=0.8′, DC=3; 40.6-cm L f/4 (165x); Paul Camilleri (Warners Bay, Australia)
2015 Jun. 04.88 UT: m1=13.0: CCD, Dia.=&2.3′; [T16] 0.15-m f/7.3 refractor + CCD; A. Novichonok & T. Prystavski (AstroCamp Observatory, I89 remotely from Nerpio, Spain)
2015 May  21.97 m1=14.2 CCD + R filter, Dia.=25″, DC=5, Fantail=1′ in PA: 38-117 deg., ; 70-cm f/4 L + CCD; Alexander Baransky (Kyiv comet station MPC 585, Ukraine) [Fantail curved CCW]
2015 May  20.93 UT: m1=14.1 + R filter, Dia.=36″, DC=5, Fantail=1′ in PA: 317-101 deg.,; 70-cm f/4 L + CCD; Alexander Baransky (Kyiv comet station MPC 585, Ukraine) [Fantail curved CCW]
2015 May  16.52 UT: m1=14.0, Dia.=0.6′, DC=2/; 40.6-cm L f/4 (165x); Paul Camilleri (Warners Bay, Australia)
2015 May  15.95 UT: m1=13.8, Dia.=1.0′, DC=3; 30,5cm L F/4.9 (93x); J. P. Navaro Pina (Bullas, Murcia, Spain)
2015 May  15.89 UT: m1=12.7, Dia.=1.2′, DC=2; 32cm L f/5 (96x); Uwe Pilz (Leipzig, Germany)
2015 May  15.23 UT: m1=15.7 CCD, Dia.=0.7’; Measures taken on CCD images unfiltered; Pierre Laporte (Cd’OA des Monts Notre-Dame, Québec, Canada)
2015 May  12.98 UT: m1=14.2 + R filter, Dia.=43″, DC=5, Fantail=1′ in PA: 354-138 deg.; 70-cm f/4 L + CCD; Alexander Baransky (Kyiv comet station MPC 585, Ukraine)
2015 May  11.91 UT: m1=12.9, Dia.=1.5′, DC=2; 50.8 cm L (189x); Sandor Szabo (Sopron, Hungary) [Very large and diffuse]
2015 May  10.93 UT: m1=11.0, Dia.=2.0′, DC=2; 32cm L f/5 (48x); Uwe Pilz (Leipzig, Germany)
2015 May  10.92 UT: m1=14.4, Dia.=0.5′, DC=4/; 35cm L (239x); Jakub Cerny (Senohraby, Czech Republic)
2015 May  10.45 UT: m1=14.4, Dia.=0.7’, DC=2/; 25cm L f:5 (83x); Chris Wyatt (Walcha, NSW, Australia) [Coma diffuse, slight brightening at centre; No tail]
2015 May  08.39 UT: m1=14.3, Dia.=0.6’, DC=2/; 25cm L f:5 (183x); Chris Wyatt (Walcha, NSW, Australia) [Coma very small and diffuse; no tail]
2015 May  07.89 UT: m1=13.0, Dia.=1.5′, DC=1; 30.5cm L (93x) ; J. P. Navarro Pina (El Palmar, Murcia, Spain)
2015 May  05.98 UT: m1=14.2 CCD + R filter, Fan-like coma 25″, DC=5, Tail=1′.8 in PA: 45 deg.; 70-cm f/4 L + CCD; Alexander Baransky (Kyiv comet station MPC 585, Ukraine)
2015 Apr. 21.98 UT: m1=14.2 CCD + R filter, Dia.=43″, DC 6, Tail=1′ in PA: 325-60 deg.; 70-cm f/4 L + CCD; Alexander Baransky (Kyiv comet station MPC 585, Ukraine)
2015 Apr. 15.22 UT: m1=13.3: CCD, Dia.=&1.9′; [T20] 0.1-m f/5.0 astrograph + CCD; A. Novichonok & T. Prystavski (iTelescope observatory, H06 remotely from Mayhill, U.S.A.)
2015 Apr. 10.99 UT: m1=14.0 CCD + R filter, Dia.=30″, DC 5, Tail=30″ in PA: 320-61 deg.; 70-cm f/4 L + CCD; Alexander Baransky (Kyiv comet station MPC 585, Ukraine)
2015 Mar. 18.93 UT: m1=15.2, Dia.=0.6′, DC=2; 50.8 cm L (351x); Sandor Szabo (Sopron, Hungary)
2015 Mar. 11.97 UT: m1=15.4 CCD, Dia.=0.6′; [T16] 0.15-m f/7.3 refractor + CCD; A. Novichonok & T.Prystavski (AstroCamp Observatory, I89 remotely from Nerpio, Spain)
2015 Mar. 06.06 UT: m1=16.4 CCD + R filter, Dia.=14″, DC 5, FanTail=20″ in PA: 326-36 deg.; 70-cm f/4 L + CCD; Alexander Baransky (Kyiv comet station MPC 585, Ukraine)
2015 Feb. 18.04 UT: m1=16.0 CCD + R filter, Dia.=16″, DC 5, Tail=30″ in PA: 343-60 deg.; 70-cm f/4 L + CCD; Alexander Baransky (Kyiv comet station MPC 585, Ukraine)
2015 Feb. 13.40 UT: m1=15.8 CCD, Dia.=0.4′; [T20] 0.1-m f/5.0 astrograph + CCD; A. Novichonok & T. Prystavski (iTelescope observatory, H06 remotely from Mayhill, U.S.A.)
2015 Jan. 25.43 UT: m1=16.6: CCD, Dia.=0.4′; [T20] 0.1-m f/5.0 astrograph + CCD; A. Novichonok & T. Prystavski (iTelescope observatory, H06 remotely from Mayhill, U.S.A.)
2015 Jan. 18.54 UT: m1=15.4 CCD, Dia.=0.6′; [T20] 0.1-m f/5.0 astrograph + CCD; A. Novichonok & T. Prystavski (iTelescope observatory, H06 remotely from Mayhill, U.S.A.)

19P/Borrelly ( observaciones)
2015 Nov. 12.15 UT: m1=13.6, Dia.=1.4′, DC=3; 60.3-cm L (244x); Sandor Szabo (Sopron, Hungary)
2015 Oct. 15.22 UT: m1=10.2, Dia.=4′, DC=2; 20-cm SCT (100x); Juan José González (Alto del Castro, alt. 1720 m, León, España) [Altura sobre el horizonte: 23º. Comienzo del crepúsculo astronómico. Luz zodiacal. Cielo muy claro de montaña]
2015 Sep. 19.13 UT: m1=10.9, Dia.=1.4′, DC=2; 32.0-cm L f/5 (96x); Uwe Pilz (Leipzig, Germany)
2015 Feb. 01.42 UT: m1=15.1: CCD; [T31] 0.50-m f/6.8 astrograph + CCD + focal reducer; A. Novichonok & T. Prystavski (iTelescope observatory, Q62 remotely from Siding Spring, Australia) [nautical twilight, comet is low over the horizon: altitude +22 deg.]

17P/Holmes ( observaciones)
2015 Feb. 07.79 UT: m1=14.7, Dia.=0.5′, DC=2; 40cm L (250x); Sandor Szabo (Sopron, Hungary)
2015 Feb. 06.94 UT: m1=16.7 CCD + R filter, Dia.=30″, DC 3/; 70-cm f/4 L + CCD; Alexander Baransky (Kyiv comet station MPC 585, Ukraine)
2015 Jan. 29.73 UT: m1=13.2, Dia.=0.2′; 32.0cm L f/5 (180x); Uwe Pilz (Leipzig, Germany)
2015 Jan. 14.93 UT: m1=16.9 CCD + R filter, Dia.=10″, DC 4; 70-cm f/4 L + CCD; Alexander  Baransky (Kyiv comet station MPC 585, Ukraine)

15P/Finlay ( observaciones)
2015 Apr. 15.11 UT: m1=15.0: CCD, Dia.=&0.6′; [T20] 0.1-m f/5.0 astrograph + CCD; A. Novichonok & T. Prystavski (iTelescope observatory, H06 remotely from Mayhill, U.S.A.)
2015 Apr. 10.83 UT: m1=15.9: CCD + R filter, Dia.=30″, DC 2; 70-cm f/4 L + CCD; Alexander Baransky (Kyiv comet station MPC 585, Ukraine) [Comet low on the horizon]
2015 Mar. 23.74 UT: m1=15.0: CCD + R filter, Dia.=1′, DC 4; 70-cm f/4 L + CCD; Alexander Baransky (Kyiv comet station MPC 585, Ukraine)
2015 Mar. 18.79 UT: m1=[15.0 NEGATIVE; 50.8 cm L (307x); Sandor Szabo (Sopron, Hungary) [I suspected something on the field, but not sure. Maybe very diffuse]
2015 Mar. 16.75 UT: m1=14.8 CCD + R filter, Dia.=55″, DC 4; 70-cm f/4 L + CCD; Alexander Baransky (Kyiv comet station MPC 585, Ukraine)
2015 Mar. 16.09 UT: m1=12.4 CCD, Dia.=2.0′; [T20] 0.1-m f/5.0 astrograph + CCD; A. Novichonok & T. Prystavski (iTelescope observatory, H06 remotely from Mayhill, U.S.A.)
2015 Mar. 10.80 UT: m1=11.6, Dia.=–‘, DC=1; 25-cm L (66x); J. P. Navarro Pina (Bullas, Murcia, Spain) [stars cat. Tycho-2  comp. 1222-13-1 , 1222-713-1]
2015 Mar. 10.75 UT: m1=14.8 CCD + R filter, Dia.=1′, DC 4; 70-cm f/4 L + CCD; Alexander Baransky (Kyiv comet station MPC 585, Ukraine)
2015 Mar. 05.77 UT: m1=14.5 CCD + R filter, Dia.=1′, DC 4, Tail=2′ in PA: 88 deg.; 70-cm f/4 L + CCD; Alexander Baransky (Kyiv comet station MPC 585, Ukraine)
2015 Feb. 15.77 UT: m1=[11.3, Dia.=1.2′; 7.6cm L f/4 (38x); Marek Biely (Brno, Czech Republic) [It has faded out of my range. Fainter than 11.3 mag.]
2015 Feb. 15.76 UT: m1=11.1, Dia.=3’.1, DC=3, 35 cm reflector (107x); Jakub Cerný (Zachotin, Czech Republic)
2015 Feb. 13.80 UT: m1=10.8, Dia.=2.5′, DC=2, no cola; 20cm SCT (50x); Carlos Labordena (Castellón, España)
2015 Feb. 13.75 UT: m1=11.4, Dia.=3.0′, DC=2; 32cm L f/5 (96x); Uwe Pilz (Leipzig, Germany)
2015 Feb. 10.09 UT: m1=11.0: CCD, Dia.=&3.8′, Tail=&16′ in PA 70 deg; [T20] 0.1-m f/5.0 astrograph + CCD; A. Novichonok & T. Prystavski (iTelescope observatory, H06 remotely from Mayhill, U.S.A.)
2015 Feb. 08.76 UT: m1=10.4, Dia.=2′, DC=1/; 25.4cm L f/5 (65x); Maik Meyer (Limburg, Germany)
2015 Feb. 07.74 UT: m1=11.2, Dia.=2.0′, DC=3; 40cm L (200x); Sandor Szabo (Sopron, Hungary)
2015 Jan. 25.43 UT: m1=10.3, Dia.=1.3’, DC=3; 25cm L f:5 (83x); Chris Wyatt (Walcha, NSW, Australia) [Low altitude = 11.1°; Moonlight; Appears as a faint smudge slightly brighter than background sky with brightening to centre]
2015 Jan. 24.96 UT: m1=9.2:;18cm L (57x); Alexandre Amorim (Florianopolis, Brazil) [light pollution and moonlight]
2015 Jan. 24.42 UT: m1=10.5, Dia.=1’, DC=3; 25cm L f:5 (83x); Chris Wyatt (Walcha, NSW, Australia) [Low altitude = 10.7°; Coma appears slightly elongated to the East approximately. Difficult due to twilight and moonlight interference, observed in gaps in clouds]
2015 Jan. 23.73 UT: m1=9.0:, Dia.=3′, DC=2/; 15.0 cm R f/5 (38x);  Maik Meyer (Limburg, Germany) [3 day old moon only 5 deg away, comet only glimpsed w/averted vision]
2015 Jan. 22.79 UT: m1=7.9, Dia.=2.5′, DC=6, no cola; 8cm B (11x); Carlos Labordena (Castellón, España)
2015 Jan. 21.73 UT: m1=8.2 Dia.=2′, DC=7; 12×50 B: Giuseppe Pappa (Sicily,Italy)
2015 Jan. 21.73 UT: m1=9.6, Dia.=1.3′, Tail= 0.04 deg. PA: 190 deg.; 32.0cm L f/5 (120x); Uwe Pilz (Leipzig, Germany)
2015 Jan. 20.09 UT: m1=[8.8; 15-cm T (37.5x); Salvador Aguirre (Hermosillo, Sonora, Mexico)
2015 Jan. 19.44 UT: m1=8.8, Dia.=5′, DC=5; 26×100 B; Katsumi Yoshimoto (Yamaguchi, Japan)
2015 Jan. 18.77 UT: m1=7.5, Dia.=3′, DC=7; 11.4cm L f/8 (45x); Neil Norman  [Small and condensed with a trace of outer coma which reveals its nature]
2015 Jan. 18.72 UT: m1=7.9, Dia.=4′, DC=5/; 20×88 B; Maik Meyer (Limburg, Germany)
2015 Jan. 18.43 UT: m1=8.2, Dia.=2.4’, DC=4/; 25cm L f:5 (x39); Chris Wyatt (Walcha, NSW, Australia) [Low altitude = 11°; Coma elongated to ENE approximately, thinly veiled tail visible 2.5’ in length as measured from the coma centre in P.A. 073°]
2015 Jan. 18.11 UT: m1=7.8, Dia.=4’, DC=3; 10×50 B; Carl Hergenrother (Tucson, AZ, USA)
2015 Jan. 17.98 UT: m1=7.0, Dia.=3’, DC=7; 7×50 B; Willian Souza (Sao Paulo, Brazil)
2015 Jan. 17.79 UT: m1=7.2, Dia.=4′, DC=7, no cola; 8cm B (11x); Carlos Labordena (Castellón, España)
2015 Jan. 17.77 UT: m1=8.0, Dia.=3′, DC=3, 10×50 B; J. P. Navarro Pina (El Palmar, Murcia, Spain)
2015 Jan. 17.75 UT: m1=7.9, Dia.=3′, DC=7; 11.4cm L f/8 (45x); Neil Norman (Ipswich, England) [Comet in outburst and easily located. Very strong degree of condensation noted]
2015 Jan. 17.72 UT: m1=7.0, Dia.=5′, DC=5/; 20×88 B;  Maik Meyer (Limburg, Germany)
2015 Jan. 17.44 UT: m1=7.8, Dia.=3.2’, DC=5; 25cm L f:5 (x39); Chris Wyatt (Walcha, NSW, Australia) [Low altitude = 7.8°; Coma shows diffuse outer coma, gradually brightening to centre to a moderately condensed centre. At x83 the central condensation is more smeared, opaque and a short tapered tail-like feature extends to the East but not beyond the coma. Reported in outburst, my observations a few nights previous (Jan 14.43 UT) gave a magnitude of 10.7]
2015 Jan. 17.00 UT: m1=8.2, Dia.=3′, DC=6/; 30.5 cm f/4.9 reflector (88x); Todd Augustyniak (suburbs of Chicago, USA)
2015 Jan. 17.41 UT: m1=7.5, Dia.=5′, DC=7; 26×100 B; Katsumi Yoshimoto (Yamaguchi, Japan)
2015 Jan. 16.99 UT: m1=7.0, Dia.=4′, DC=6; 10 B (20X); Marco Antonio Coelho Goiato (Araçatuba, Brazil) [Outburst]
2015 Jan. 16.98 UT: m1=7.1, Dia.=3′, DC=7; 22 L (60x); Marco Antonio Coelho Goiato (Araçatuba, Brazil) [Outburst]
2015 Jan. 14.43 UT: m1=10.7, Dia.=1.5’, DC=4; 25cm L f:5 (39x); Chris Wyatt (Walcha, NSW, Australia) [Low altitude = 12.9°; Coma diffuse with brighter moderately condensed centre. At x83 the coma appears elongated to the East approximately]
2015 Jan. 13.71 UT: m1=9.7, Dia.=3.0′, DC=4/, 20×80 B; Marek Biely (Brno, Czech Republic) [Better visible than last time.]
2015 Jan. 10.71 UT: m1=10.0, Dia.=2.5′, DC=4; 7.6cm f/4 L (38x); Marek Biely (Brno, Czech Republic) [Slight interference of low clouds]
2015 Jan. 07.06 UT: m1=9.6: CCD, Dia.=4.5′, Tail>41.0′ in PA 70 deg; [T20] 0.1-m f/5.0 astrograph + CCD; A. Novichonok & T. Prystavski (iTelescope observatory, H06 remotely from Mayhill, U.S.A.)
2015 Jan. 02.70 UT: m1=9.8, Dia.=3.0′; 32.0cm L f/5 (120x); Uwe Pilz (Leipzig, Germany)

10P/Tempel 2 ( observaciones)
2015 Dec. 29.73 UT: m1=11.0 DSLR, Dia.=1.5′; canon 1100d+300mm lens; Giuseppe Pappa (Mascalucia, Sicily, Italy)
2015 Dec. 19.10 UT: m1=10.0, Dia.=4′, DC=3; 56-cm (100x); Brad Young (Tulsa, OK, USA)
2015 Dec. 07.19 UT: m1=10.0 DSLR, Dia.=4′; digital reflex+0.3m lens; Giuseppe Pappa (Sicily, Italy)
2015 Dec. 06.07 UT: m1=9.7, Dia.=2, DC=3; 30×125 B; Carl Hergenrother (Tucson, AZ, USA)
2015 Nov. 30.79 UT: m1=9.2, Dia.=5′, DC=2; 20-cm SCT (77x); Juan José González ( Alto del Trichero – Soto y Amío, alt. 1190 m, León, España) [Estrella de magnitud 11.3 (APASS) en la coma. Altura sobre el horizonte: 9º. Luz zodiacal. Cielo muy claro de montaña]
2015 Nov. 15.73 UT: m1=11.6 DSLR, Dia.=1′, Digital reflex+0.3m lens; Giuseppe Pappa (Sicily, Italy)
2015 Nov. 15.72 UT: m1=11.5 DSLR, Dia.=2′, Digital reflex+0.3m lens; Giuseppe Pappa (Sicily, Italy)
2015 Nov. 14.76 UT: m1=9.8, Dia.=3′, DC=2, no cola; 20-cm SCT (80x); Carlos Labordena (Castellón, España)
2015 Nov. 09.72 UT: m1=11.4 DSLR, Dia.=1′; Digital reflex+0.3m lens; Giuseppe Pappa (Sicily, Italy)
2015 Nov. 07.96 UT: m1=11.1, Dia.=1.5′, DC=3; 22-cm L (160X); Marco Antonio Coelho Goiato (Araçatuba, Brazil)
2015 Nov. 07.78 UT: m1=9.5, Dia.=4′, DC=2; 20-cm SCT (77x); Juan José González (Alto del Cellerón – Camposagrado, alt. 1190 m, León, España) [Altura sobre el horizonte: 11º. Cielo muy claro de montaña]
2015 Nov. 06.96 UT: m1=11.2:, Dia.=1.5′, DC=3; 22-cm L (160X); Marco Antonio Coelho Goiato (Araçatuba, Brazil) [Clouds]
2015 Nov. 06.40 UT: m1=11.7, Dia.=1.4’; DC=2/; 25-cm L f:5 (83x); Chris Wyatt (Walcha, NSW, Australia) [Coma very diffuse, semi-opaque, weakly condensed, pale blue in colour. Does not enhance in Swan Band filter. No tail]
2015 Oct. 31.08 UT: m1=[10.8, negative; 15-cm T (37.5x); Salvador Aguirre (Observatorio Real del Molinito, Hermosillo, Sonora, Mexico)
2015 Oct. 16.39 UT: m1=12.0: CCD Dia.=&2.4′; [T31] 0.50-m f/6.8 astrograph + CCD + focal reducer; A. Novichonok & T. Prystavski (iTelescope observatory, Q62 remotely from Siding Spring, Australia)
2015 Oct. 14.81 UT: m1=9.5, Dia.=4′, DC=2/; 20-cm SCT (77x); Juan José González (Alto del Castro, alt. 1720 m, León, España) [Altura sobre el horizonte: 11º. Cielo muy claro de montaña]
2015 Oct. 09.42 UT: m1=11.1, Dia.=3.5’, DC=2; 25cm L f:5 (39x); Chris Wyatt (Walcha, NSW, Australia) [Close to mag 11 and 12 stars; enhances slightly in Swan Band filter, no tail. Coma very diffuse and transparent]
2015 Oct. 08.40 UT: m1=11.3, Dia.=2.8′, DC=2/; 30cm Dobson; Con Stoitsis (Caulfield, Australia) [Coma very diffused and uniformed. Easier with averted vision]
2015 Oct. 06.95 UT: m1=10.6, Dia.=2′, DC=4; 22-cm L (60x); Marco Antonio Coelho Goiato (Araçatuba, Brazil) [No enhancement with comet filter]
2015 Oct. 05.41 UT: m1=11.0, Dia.=4.8’, DC=2; 25-cm L f:5 (39x); Chris Wyatt (Walcha, NSW, Australia) [Sky hazy, slight Zodiacal light interference. Coma very diffuse with very weakly condensed centre, no tail. Enhances slightly in Swan Band filter]
2015 Oct. 03.42 UT: m1=11.1, Dia.=3.4’, DC=2; 25-cm L f:5 (39x); Chris Wyatt (Walcha, NSW, Australia) [Very diffuse coma, enhances slightly in Swan Band filter, no tail; Zodiacal light interference]
2015 Oct. 03.38 UT: m1=12.2 CCD Dia.=2.7′; [T31] 0.50-m f/6.8 astrograph + CCD + focal reducer; A. Novichonok & T. Prystavski (iTelescope observatory, Q62 remotely from Siding Spring, Australia)
2015 Sep. 06.80 UT: m1=14.3, Dia.=0.4′, DC=3; 60.3-cm L (244x); Sandor Szabo (Sopron, Hungary)
2015 Sep. 05.46 UT: m1=14.1 CCD, Dia.=1.3′; [T31] 0.50-m f/6.8 astrograph + CCD + focal reducer; A. Novichonok & T. Prystavski (iTelescope observatory, Q62 remotely from Siding Spring, Australia)
2015 Aug. 18.37 UT: m1=15.5 CCD, Dia.=0.8′; [T31] 0.50-m f/6.8 astrograph + CCD + focal reducer; A. Novichonok & T. Prystavski (iTelescope observatory, Q62 remotely from Siding Spring, Australia)
2015 Jul. 18.89 UT: m1=16.2 CCD Dia.=0.2′; [T7] 0.43-m f/6.8 astrograph + CCD; A. Novichonok & T.Prystavski (AstroCamp Observatory, I89 remotely from Nerpio, Spain)
2015 Jun. 08.87 UT: m1=16.8 CCD; 0.7-m f/4.0 reflector + CCD; S. Nazarov & T. Prystavski (Crimean Astrophysical Observatory, MPC 095 Crimea-Nauchnij)
2015 Jul. 08.48 UT: m1=17.7 CCD; [T31] 0.50-m f/6.8 astrograph + CCD + focal reducer; A. Novichonok & T. Prystavski (iTelescope observatory, Q62 remotely from Siding Spring, Australia)
2015 Jun. 04.89 UT: m1=16.7 CCD; [T16] 0.15-m f/7.3 refractor + CCD; A. Novichonok & T. Prystavski (AstroCamp Observatory, I89 remotely from Nerpio, Spain)
2015 May  12.99 UT: m1=15.7 CCD + R filter, Dia.=10″, DC=8S; 70-cm f/4 L + CCD; Alexander Baransky (Kyiv comet station MPC 585, Ukraine) [Star-like coma]
2015 May  06.02 UT: m1=15.3 CCD + R filter, Dia.=9″, DC=8S; 70-cm f/4 L + CCD; Alexander Baransky (Kyiv comet station MPC 585, Ukraine)
2015 Apr. 22.03 UT: m1=16.4 CCD + R filter, Dia.=11″, DC 6; 70-cm f/4 L + CCD; Alexander Baransky (Kyiv comet station MPC 585, Ukraine)
2015 Apr. 21.83 UT: m1=16.8 CCD; 0.7-m f/4.0 reflector + CCD; S. Nazarov & T. Prystavski (Crimean Astrophysical Observatory, MPC 095 Crimea-Nauchnij)
2015 Apr. 17.48 UT: m1=16.7: CCD; [T21]0.43-m f/6.8 astrograph + CCD + f/4.5 focal reducer; A. Novichonok & T.Prystavski (iTelescope observatory, H06 remotely Mayhill, U.S.A.) [Morning twilight]
2015 Apr. 11.03 UT: m1=16.4 CCD + R filter, Dia.=9″, DC 7, Tail=18″ in PA: 247-39 deg.; 70-cm f/4 L + CCD; Alexander Baransky (Kyiv comet station MPC 585, Ukraine)
2015 Apr. 10.00 UT: m1=17.4 CCD; 0.7-m f/4.0 reflector + CCD; S. Nazarov & T. Prystavski (Crimean Astrophysical Observatory, MPC 095 Crimea-Nauchnij)

7P/Pons-Winnecke ( observaciones)
2015 Jun. 13.82 UT: m1=16.5 CCD Dia.=0.3′; [T31] 0.50-m f/6.8 astrograph + CCD + focal reducer; A. Novichonok & T. Prystavski (iTelescope observatory, Q62 remotely from Siding Spring, Australia)
2015 Apr. 24.81 UT: m1=15.6: CCD, Dia.=&0.3′, Tail=&1.0′ in PA 315 deg; [T17] 0.43-m f/6.8 astrograph + CCD; A. Novichonok & T. Prystavski (iTelescope observatory, Q62 remotely Siding Spring, Australia) [morning twilight]

6P/d’Arrest ( observaciones)
2015 Sep. 11.72 UT: m1=17.8 CCD, Dia.=0.2′, Tail=0.3′ in PA: 24 deg.; [T31] 0.50-m f/6.8 astrograph + CCD + focal reducer; A. Novichonok & T. Prystavski (iTelescope observatory, Q62 remotely from Siding Spring, Australia)
2015 June 27.78 UT: m1=13.6, Dia.=0.7’, DC=2/; 25cm L f:5 (83x); Chris Wyatt (Walcha, NSW, Australia) [Very difficult, zodiacal light interference, average seeing conditions. Coma very diffuse with small opaque weakly condensed centre, no tail. Altitude = 19.1°, ; limiting magnitude = 14.5]
2015 June 22.80 UT: m1=13.3, Dia.=1.3’, DC=3; 25cm L f:5 (83x); Chris Wyatt (Walcha, NSW, Australia) [Very difficult, zodiacal light interference. Limiting magnitude 14.5. Altitude = 22.5°]

4P/Faye ( observaciones)
2015 Jun. 14.37 UT: m1=18.2: CCD; [T31] 0.50-m f/6.8 astrograph + CCD + focal reducer; A. Novichonok & T. Prystavski (iTelescope observatory, Q62 remotely from Siding Spring, Australia)
2015 Apr. 19.94 UT: m1=15.4: CCD, Dia.=0.8′; [T16] 0.15-m f/7.3 refractor + CCD; A. Novichonok & T. Prystavski (AstroCamp Observatory, I89 remotely from Nerpio, Spain)
2015 Mar. 12.27 UT: m1=15.4 CCD, Dia.=0.6′ Tail=8.2′ in PA 284 deg; [T20] 0.1-m f/5.0 astrograph + CCD; A. Novichonok & T. Prystavski (iTelescope observatory, H06 remotely from Mayhill, U.S.A.)
2015 Mar. 10.97 UT: m1=15.7 CCD + R filter, Dia.=20″, DC 5, Tail=4′ in PA: 288-349 deg.; 70-cm f/4 L + CCD; Alexander Baransky (Kyiv comet station MPC 585, Ukraine)
2015 Feb. 18.00 UT: m1=14.9 CCD + R filter, Dia.=39″, DC 6S, Tail=> 7′ in PA: 288 deg.; 70-cm f/4 L + CCD; Alexander Baransky (Kyiv comet station MPC 585, Ukraine)
2015 Feb. 15.44 UT: m1=14.4 CCD, Dia.=0.7′, Tail=&14′ in PA 289 deg; [T20] 0.1-m f/5.0 astrograph + CCD; A. Novichonok & T. Prystavski (iTelescope observatory, H06 remotely from Mayhill, U.S.A.)
2015 Feb. 11.04 UT: m1=14.9 CCD + R filter, Dia.=35″, DC 6S, Tail=> 9′ in PA: 293 deg.; 70-cm f/4 L + CCD; Alexander Baransky (Kyiv comet station MPC 585, Ukraine) [Tail slightly curved in CW with more sharp W border]
2015 Jan. 20.49 UT: m1=14.7 CCD, Dia.=0.7′, Tail=&11.2′ in PA 291 deg; [T20] 0.1-m f/5.0 astrograph + CCD; A. Novichonok & T. Prystavski (iTelescope observatory, H06 remotely from Mayhill, U.S.A.)
2015 Jan. 14.86 UT: m1=15.1 CCD + R filter, Dia.=23″, DC 6, Tail=2′ 12″ in PA: 300 deg.; 70-cm f/4 L + CCD; Alexander Baransky (Kyiv comet station MPC 585, Ukraine)

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