Observaciones 2010

Año 2010 – Observaciones Visuales y CCD de Cometas


C/2010 V1 (Ikeya – Murakami) (10 observaciones)
2010 Dec. 04.83 UT: m1=[11.9, Dia.=1.6′; 40cm L f:4 (144x); Seiichi Yoshida (Kita-karuizawa, Gunma, Japan)
2010 Dic. 04.25 UT: m1=11.7, Dia.=3′, DC=2, no cola; 20cm SC(50x); Carlos Labordena (Castellón, España)
2010 Nov. 19.312 UT: m1=8.7, Dia.=6′, DC=2, 20×100 B; Marco Goiato (Araçatuba, Brasil) [Crepúsculo náutico]
2010 Nov. 13.24 UT: m1=8.2, Dia.=10′, DC=2; 25×100 B; Juan José González (Collada Llomena – Ponga, alt. 995 m., Asturias, España ) [ En 20 cm SCT (77x): m1=8.7; coma de morfología parabólica, observable a lo largo de 8′ en la dirección del eje mayor, con latus rectum de 1.5′. Fina cola de 0.1º en AP 290º, inmersa en la coma. Luz zodiacal. Altura sobre el horizonte: 15º. Cielo muy claro de montaña]
2010 Nov. 11.30 UT: m1=8.5:, DC=8; 20×80 B; Alexandre Amorim (Florianopolis, Brazil) [alt. 8 degrees]
2010 Nov. 07.312 UT: m1=8.2, Dia.=2′, DC=4; 20×100 B; Marco Goiato (Araçatuba, Brasil) [Crepúsculo náutico, altitude do cometa= 10º]
2010 Nov. 07.31 UT: m1=8.5, Dia.=3′, DC=3/; 25×100 B; Jose G. de S. Aguiar (Campinas, Brazil)
2010 Nov. 05.312 UT: m1=8.2:, Dia.=1′, DC=4/, 20x100B; Marco Goiato (Araçatuba, Brasil) [Crepúsculo náutico; altura do cometa= 8º]
2010 Nov. 05.31 UT: m1=8.3, Dia.=3′, DC=3; 25×100 B; Jose G. de S. Aguiar (Campinas, Brazil)
2010 Nov. 04.23 UT: m1=7.6, Dia.=5′, DC=5; 10×50 B; Juan José González Suárez (Alto del Castro – Aralla, alt. 1720 m., Leon, España) [Altitude: 14 deg. Zodiacal light. Mountain location, very clear sky. Visual astrometry: R.A. = 12h36m.0, Decl. = -2o09′.3 (equinox 2000.0)]

C/2010 L3 (Catalina) (2 observaciones)
2010 Jun. 19.29 UT: m1=19.2 ccd, Dia.=<0.2′; 35.5cm L +CCD; Artyom Novichonok & Dimitry Chestnov (remotely Mayhill, USA)
2010 Jun. 16.23 UT: m1=19.0 ccd, Dia.=<0.2′; 35.5cm L +CCD; Artyom Novichonok & Dimitry Chestnov (remotely Mayhill, USA)

C/2010 J1 (Boattini) (3 observaciones)
2010 May. 08.35 UT: m1=16.0 ccd, Dia.=0.2′, Tail=0.9′; 35.5cm L +CCD; Artyom Novichonok & Dimitry Chestnov (remotely Mayhill, USA)
2010 May. 06.97 UT: m1=[14.2; 20cm SCT (160x); Juan José González (San Mamés de Campos, alt. 840 m, Palencia, España) [Cometa no observado en la posición indicada por las efemérides de la NEOCP y posterior M.P.E.C. 2010-J32. Estrellas de campo comprobadas en el DSS. Estrellas de comparación de la secuencia Henden de Z UMi]
2010 May. 06.88 UT: m1=15.6 ccd, Dia.=0.35′, Tail=0.6′; 30cm L +CCD; Artyom Novichonok & Timur Kryachko (remotely Zelenchukskaya Station, Russia )

P/2010 H2 (Vales)
(34 observaciones)
2010 Jul. 10.55 UT: m1=15.0, Dia.=0.9′; 15cm L + CCD; Artyom Novichonok & Dimitry Chestnov (remotely Moorook, S. Australia)
2010 Jun. 17.82 UT: m1=14.7 ccd, Dia.=0.8′, DC=1; 25cm L +ccd +Rc filter; Toni Scarmato (Calabria, Italia)
2010 Jun. 11.91 UT: m1=12.1, Dia.=1.5′, DC=3, no cola; 23.5cm SCT (94x); Carlos Labordena (Castellón, España)
2010 Jun. 03.95 UT: m1=11.8, Dia.=2.5′, DC=2; 20cm SCT (77x); Juan José González (Alto del Trichero – Soto y Amío, alt. 1190 m., León, España) [Coma asimétrica elongada en dirección N-S]
2010 May. 22.06 UT: m1=11.3, Dia.=3′, DC=2/; 20cm SCT (77x); Juan José González (Alto del Castro – Aralla, alt. 1720 m., León, España) [Coma asimétrica elongada en dirección N-S. Mejores condiciones de observación desde una localización situada a mayor altitud permitieron una estimación más brillante que la previa, obtenida 5 días atrás]
2010 Maio 21.125 UT: m1=12.5, Dia.=2′, DC=2/; 22cm L f:6.5 (160x); Marco Goiato (Araçatuba, Brasil)
2010 Maio 17.062 UT: m1=12.7, Dia.=1′, DC=3/; 22cm L f:6.5 (160x); Marco Goiato (Araçatuba, Brasil)
2010 May. 16.99 UT: m1=11.5, Dia.=2.5′, DC=3; 20cm SCT (77x); Juan José González (Cueto Rosales – Riello, alt. 1420 m., León, España) [Coma asimétrica elongada en dirección N-S]
2010 May. 15.96 UT: m1=12.0, Dia.=1.5′, DC=3, no cola; 23.5cm SCT (138x); Carlos Labordena (Castellón, España)
2010 Maio 14.166 UT: m1=12.5, Dia.=1.2′, DC=3; 22cm L f:6.5 (160x); Marco Goiato (Araçatuba, Brasil)
2010 May. 13.43 UT: m1=11.0, Dia.=2.1’, DC=2; 25cm L f:5 (39x); Chris Wyatt (Walcha, NSW, Australia) [No tail, coma diffuse, visible with direct vision, more outer coma detected with averted vision. Comp Star= GSC-0303-0506; Method= S; Cat= HS]
2010 Maio 13.125 UT: m1=12.5:, Dia.=1′, DC=3; 22cm L f:6.5 (160x); Marco Goiato (Araçatuba, Brasil) [nebulosidade fina]
2010 May. 12.49 UT: m1=12.9, Dia.=1′; 25.4cm L (71x); David A. J. Seargent (Cowra, NSW, Australia)
2010 May. 11.43 UT: m1=11.7, Dia.=2.4’, DC=2; 25cm L f:5 (83x); Chris Wyatt (Walcha, NSW, Australia) [No tail, coma seems elongated NE to SW, showing sign of a faint central bar in that orientation within coma. Comp Star= GSC-0303-0507; Method= S; Cat= HS]
2010 May. 10.41 UT: m1=12.5, Dia.=2’, DC=2; 25cm L f:5 (83x); Chris Wyatt (Walcha, NSW, Australia) [No tail, even surface brightness although faint with slight condensation. Comp Star= GSC-0303-0468; Method= S; Cat= HS]
2010 May. 09.47 UT: m1=11.2, Dia.=5.1’, DC=3; 25cm L f:5 (39x); Chris Wyatt (Walcha, NSW, Australia) [No tail. Comp Star= GSC-0303-0650; Method= S; Cat= HS]
2010 Maio 08.146 UT: m1=12.3, Dia.=1.5′, DC=4; 22cm L f:6.5 (160x); Marco Goiato (Araçatuba, Brasil)
2010 May. 07.49 UT: m1=10.6, Dia.=4’, DC=2; 25cm L f:5 (39x); Chris Wyatt (Walcha, NSW, Australia) [No tail, close to bright star. Comp Star= TYC 306-857-1; Method= S; Cat= TJ]
2010 May. 05.94 UT: m1=11.6, Dia.=1.7′, DC=4; 20cm SCT (100x); Juan Jose Gonzalez (Pandorado, alt. 1190 m, Leon, España) [Elongada coma asimétrica]
2010 May. 05.40 UT: m1=11.1, Dia.=3.8’, DC=3/4; 25cm L f:5 (39x); Chris Wyatt (Walcha, NSW, Australia) [No tail, coma slightly brightening towards centre. Comp Star= GSC-0303-0812; Method= S; Cat= HS]
2010 May. 04.26 UT: m1=12.1 ccd, Dia.=2.6’x2.2′; 35.5 cm L +CCD; Artyom Novichonok & Dimitry Chestnov (remotely Mayhill, USA)
2010 May. 03.40 UT: m1=11.6, Dia.=1.6’, DC=1/2; 25cm L f:5 (83x); Chris Wyatt (Walcha, NSW, Australia) [No tail, coma appears broadly elongated to the East. Comp Star= GSC-0303-0432; Method= S; Cat= HS]
2010 Mai. 03.000 UT: m1=12.2, Dia.=1.5′, DC=4; 22cm L f:6.5 (160x); Marco Goiato (Araçatuba, Brasil)
2010 May. 02.55 UT: m1=11.7, Dia.=1.9′, DC=5; 40.0cm L f/4.5 (75x); Seiichi Yoshida (Gunma, Japan)
2010 May. 02.36 UT: m1=11.7, Dia.=1.7’, DC=3/4; 25cm L f:5 (83x); Chris Wyatt (Walcha, NSW, Australia) [No tail, close to bright star. Comp Star= GSC-0303-0544; Method= S; Cat= HS]
2010 May. 01.50 UT: m1=11.7, Dia.=1.9′, DC=6; 40.0cm L f/4.5 (75x); Seiichi Yoshida (Gunma, Japan)
2010 Apr. 23.63 UT: m1=11.7, Dia.=2’, DC= 4; 25cm L, f:5 (39x); Chris Wyatt (Walcha, NSW, Australia) [No tail, coma diffuse, no stellar central condensation. Comp Star= GSC-0313-0686; Method= S; Cat= HS]
2010 Apr. 22.55 UT: m1=11.3, Dia.=1.3’, DC=6; 25cm L f:5 (39x); Chris Wyatt (Walcha, NSW, Australia) [No tail, coma diffuse, very small star-like condensation, moonlight affected. Comp Star= TYC 310-706-1; Method= S; Cat= TJ]
2010 Abr. 22.021 UT: m1=11.5, Dia.=1′, DC=6/; 22cm L f:6.5 (60x); Marco Goiato (Araçatuba, Brasil)
2010 Apr. 21.56 UT: m1=11.7, Dia.=0.7’, DC=6; 25cm L f:5 (83x); Chris Wyatt (Walcha, NSW, Australia) [No tail, central condensation stellar-like, coma more diffuse with smaller central condensation. Comp Star= GSC-0313-1130; Method= S; Cat= HS]
2010 Apr. 20.42 UT: m1=11.0, Dia.=0.7’, DC=8; 25cm L f:5 (83x); Chris Wyatt (Walcha, NSW, Australia) [Central condensation quite bright with thin faint outer coma, no tail. Comp Star= TYC 313-556-1; Method= M; Cat= TJ]
2010 Apr. 19.95 UT: m1=11.7, Dia.=0.7′, DC=7; 13 cm reflector; Artyom Novichonok (Konchezero, Russia)
2010 Abr. 19.083 UT: m1=11.5, Dia.=0.7′, DC=8; 22cm L f:6.5 (160x); Marco Goiato (Araçatuba, Brasil)
2010 Abr. 18.156 UT: m1=11.7, Dia.=0.5′, DC=8/; 22cm L f:6.5 (160x); Marco Goiato (Araçatuba, Brasil)

C/2010 G1 (Boattini)
(1 observación)
2010 Abr. 05.91 UT: m1=13.2, Dia.=0.8′, DC=4; 20cm SCT (160x); Juan José González (Alto del Trichero – Soto y Amío, alt. 1190 m., León, España) [Cielo muy claro de montaña. Estrellas de campo comprobadas en el DSS. Estrellas de comparación de la secuencia Henden de V650 Ori. Movimiento seguido durante 60 min. Astrometría visual: A.R.= 4h11m.5, Decl.= +27o05′.5 (2000.0)]

C/2010 F4 (Machholz)
(1 observación)
2010 Mar. 27.18 UT: m1=10.7, Dia.=1.5′, DC=4; 20cm SCT (100x); Juan José González (Gulpiyuri-Naves, Llanes, alt. 20 m., Asturias, España) [Observación realizada en el ocaso lunar, con cielo muy claro. Altitud: 11º. Astrometría visual: A.R. = 23h29m.5, Decl. = +32o16′.5 (2000.0)]

C/2010 B1 (Cardinal) (7 observaciones)
2010 Dec. 31.45 UT: m1=13.5, Dia.=1′, DC=1; 25cm L f:5 (83x); Chris Wyatt (Walcha NSW, Australia) [No tail, small diffuse coma, visible with averted vision. Comp Star= ASAS3 055607-0637.7 ; Method= S; Cat= AU]
2010 Dec. 29.47 UT: m1=13.2, Dia.=1.5′, DC=4/5; 25cm L f:5 (83x); Chris Wyatt (Walcha, NSW, Australia) [No tail, bright but small coma, central condensation visible using averted vision in good seeing. Comp Star= GSC-4194-1023; Method= S; Cat= HS]
2010 Dic. 15.55 UT: m1= 13.9, Dia.=1′, DC= 4/5; 25cm L f:5 (83x); Chris Wyatt (Walcha, NSW, Australia) [Coma very small and diffuse, visible using averted vision. Comp Star= ASAS 063250-0048.7: Method= S: Cat= AU]
2010 Dic. 12.55 UT: m1= 13.7, Dia.=1′, DC= 1/2; 25cm L f:5 (83x); Chris Wyatt (Walcha, NSW, Australia) [No tail, coma small and diffuse, near bright star, seen with averted vision in good seeing. Comp Star= GSC-0147-0330: Method= S: Cat= HS]
2010 Nov. 13.22 UT: m1=13.8, Dia.=0.8′, DC=5; 20cm SCT (133x); Juan José González (Collada Llomena – Ponga, alt. 995 m., Asturias, España ) [ Estrellas de campo comprobadas en el DSS. Estrellas de comparación de la fotometría Henden cercana a AK Cnc]
2010 Sep. 19.03 UT: m1=16.5 ccd, Dia.=0.27′, DC=8, tail 1.4′ in PA 354 deg.; 41cm L f/3.8 +CCD; Sergey Shurpakov (Belarus)
2010 Sep. 01.46 UT: m1=14.6, Dia.=0.3′, Tail=1.2′; 46cm L + CCD; Artyom Novichonok (Kondopoga, Russia) and Leonid Elenin (Moscow, Russia)

P/2010 A5 (LINEAR) (6 observaciones)
2010 Jun. 15.20 UT: m1=15.4 ccd, Dia.=0.42′, DC=7/ , Tail:3′ in PA:272deg.; 36cm L f/3.8 +CCD; Sergey Shurpakov (Baran’, Belarus)
2010 Jun. 14.18 UT: m1=15.6 ccd, Dia.=0.42′, DC=7/; 36cm L f/3.8 +CCD; Sergey Shurpakov (Baran’, Belarus)
2010 Jun. 13.24 UT: m1=15.3 ccd, Dia.=0.37′, DC=8 , tail:3′ in PA:280 deg.; 36cm L f/3.8 +CCD; Sergey Shurpakov (Baran’, Belarus)
2010 May. 06.46 UT: m1=14.1, Dia.=0.5’, DC=1; 25cm L f:5 (139x); Chris Wyatt (Walcha, NSW, Australia) [No tail, very faint and diffuse, coma evenly illuminated, averted vision only. Comp Star= GSC-7343-0175; Method= S; Cat= HS]
2010 May. 04.26 UT: m1=14.9 ccd, Dia.=0.4′, Tail=0.7′; 35.5 cm L +CCD; Artyom Novichonok & Dimitry Chestnov (remotely Mayhill, USA)
2010 Mar. 15.16 UT: m1=14.5, Dia.=0.6′, DC=6; 20cm SCT (222x); Juan José González (Aralla, alt. 1440 m., León, España) [Cielo muy claro de montaña. Estrellas de campo comprobadas en el DSS. Estrellas de comparación de la secuencia Henden de GW Lib]

P/2010 A3 (Hill)
(1 observación)
2010 May. 05.89 UT: m1=13.3, Dia.=0.8′, DC=3; 20cm SCT (160x); Juan José González (Pandorado, alt. 1190 m, León, España) [Cielo muy claro de montaña. Estrellas de campo comprobadas en el DSS. Estrellas de comparación de la secuencia Henden de AW Gem. Movimiento seguido durante 30 minutos]

P/2010 A2 (LINEAR)
(1 observación)
2010 Jan. 24.54 UT: m1=17.8 ccd, Dia.=0.22′, DC=3; 0.15-m f/7 refractor + CCD; Sergey Shurpakov (D96, Australia)

C/2009 Y1 (Catalina)
(6 observaciones)
2010 Dec. 04.41 UT: m1=12.9, Dia.=0.7′, DC=7; 40cm L f:4 (144x); Seiichi Yoshida (Kita-karuizawa, Gunma, Japan)
2010 Nov. 28.84 UT: m1=12.8, Dia.=1.2′, DC=5; 20cm SCT (100x); Juan José González (Aralla, alt. 1440 m., León, España) [Estrellas de campo comprobadas en el DSS. Estrellas de comparación de la fotometría Henden de V2176 Cyg. Cielo muy claro de montaña]
2010 Oct. 18.13 UT: m1=13.3, Dia.=0.7′, DC=4; 20cm SCT (100x); Juan José González (Alto del Castro – Aralla, alt. 1720 m., León, España) [Estrellas de campo comprobadas en el DSS. Estrellas de comparación de la fotometría Henden del campo GSC4414]
2010 Oct. 18.13 UT: m1=13.3, Dia.=0.7′, DC=4; 20cm SCT (100x); Juan José González (Alto del Castro – Aralla, alt. 1720 m., León, España) [Estrellas de campo comprobadas en el DSS. Estrellas de comparación de la fotometría Henden del campo GSC4414]
2010 Sep. 18.98 UT: m1=15.6 ccd, Dia.=0.28′, DC=7/; 41cm L f/3.8 +CCD; Sergey Shurpakov (Belarus)
2010 Jan. 25.54 UT: m1=18.4 ccd, Dia.=0.28′, DC=3; 0.36-m  f/3.8 reflector + CCD; Sergey Shurpakov (H10, remotely from near Mayhill, NM, U.S.A.)

C/2009 U3 (Hill) (3 observaciones)
2010 Jun. 14.22 UT: m1=18.0 ccd, Dia.=0.31′, DC=3; 36cm L f/3.8 +CCD; Sergey Shurpakov (Baran’, Belarus)
2010 Jun. 06.20 UT: m1=17.0 ccd, Dia.=0.35′, DC=2/; 36cm L f/3.8 +CCD; Sergey Shurpakov (Baran’, Belarus)
2010 Mar. 08.85 UT: m1=13.3, Dia.=0.8′, DC=3; 20cm SCT (133x); Juan José González (Castañedo del Monte, Santo Adriano, alt. 640 m, Asturias, España) [ Cielo muy claro de montaña. Estrellas de campo comprobadas en el DSS. Movimiento seguido durante 30 minutos. Estrellas de comparación de la secuenciua Henden de Z Umi]

C/2009 R1 (McNaught] (74 observaciones)
2010 Jul. 04.87 UT: m1=[5.0; 25×100 B; Juan José González (Alto del Castro – Aralla, alt. 1720 m., León, España) [Cometa no observado. Cielo muy claro de montaña. Altura sobre el horizonte: 6º]
2010 Jun. 27.13 UT: m1=5.2, Dia.=5′, DC=8, Cola=20′; 11×80 B; Carlos Labordena (Castellón, España) [Fuerte interferencia de la luz de la luna y primeras luces del alba]
2010 Jun. 24.12 UT: m1=4.9, Dia.=6′, DC=8, Cola=80′; 11×80 B; Carlos Labordena (Castellón, España)
2010 Jun. 22.11 UT: m1=5.2, Dia.=–, DC=9; simple vista; Juan José González (Alto del Castro – Aralla, alt. 1720 m., León, España) [En 10x50B: m1=5.4, Dia.=4′, DC=8, Cola iónica: 2.1º en AP 330º, cola de polvo 0.2º en AP 295º. Cielo muy claro de montaña. Altura sobre el horizonte: 9º]
2010 Jun. 20.11 UT: m1=5.0, Dia.=6′, DC=8, Cola=70′; 11×80 B; Carlos Labordena (Castellón, España)
2010 Jun. 18.10 UT: m1=5.5, Dia.=4′, DC=7/, Cola:1.5º en AP:320º; 10×50 B; Juan José González (Alto del Castro – Aralla, alt. 1720 m., León, España) [Cielo muy claro de montaña. En 25x100B: corta cola de polvo de 0.2º en AP 290º. Altura sobre el horizonte: 13º]
2010 Jun. 17.11 UT: m1=4.9, Dia.=7′, DC=7, Cola=90′; 11×80 B; Carlos Labordena (Castellón, España)
2010 Jun. 16.87 UT: m1=7.9 ccd, Dia.=3.35′, DC=7/, tail:46′ in PA:311deg.; Sergey Shurpakov (Baran’, Belarus)
2010 June 16.43 UT: m1=5.1 ccd; SBIG All-sky 340 camera; Artyom Novichonok (remotely Mayhill, USA)
2010 June 15.41 UT: m1=5.2 ccd; SBIG All-sky 340 camera; Artyom Novichonok (remotely Mayhill, USA)
2010 Jun. 15.10 UT: m1=5.4, Dia.=3.5′, DC=7/, Cola:2.2º en AP:305º; 10×50 B; Juan José González (Alto de Carmona – Tábara, alt. 970 m., Zamora, España ) [ El cometa muestra un menor diámetro de coma que en mi observación previa ( 7 de Junio ), resultando una estimación de magnitud similar, m1=5.4. Cielo muy claro de montaña. En 25x100B: corta cola de polvo de 0.2º en AP 270º. Altura sobre el horizonte: 15º ].
2010 June 14.94 UT: m1=5.6, Dia.=5′, DC=6; 15 cm L; Ilya Los (Saratov, Russia)
2010 June 14.93 UT: m1=5.5, Dia.=6′, DC=6; 15 cm L; Ilya Los (Saratov, Russia)
2010 June 14.42 UT: m1=5.5 ccd; SBIG All-sky 340 camera; Artyom Novichonok (remotely Mayhill, USA)
2010 Jun. 14.11 UT: m1=4.8, Dia.=7′, DC=7, Cola=60′; 11×80 B; Carlos Labordena (Castellón, España)
2010 June 13.92 UT: m1=5.3, Dia.=7′, DC=6; 20 cm L; Alexander Manannikov (Ramenskoye, Russia)
2010 Jun. 13.92 UT: m1=7.6 ccd, Dia.=4.0′, DC=7/, tail: in PA:305deg.; 15cm L f/3.2 +CCD; Sergey Shurpakov (Baran’, Belarus)
2010 June 13.42 UT: m1=5.7 ccd; SBIG All-sky 340 camera; Artyom Novichonok (remotely Mayhill, USA)
2010 June 12.93 UT: m1=5.4, Dia.=6′, DC=5; 20 cm L; Alexander Manannikov (Ramenskoye, Russia)
2010 June 12.88 UT: m1=5.2, Dia.=3′, DC=8, Tail=10′; 20cm L; Vyacheslav Ivanov (Saratov, Russia)
2010 June 12.43 UT: m1=5.1 ccd; SBIG All-sky 340 camera; Artyom Novichonok (remotely Mayhill, USA)
2010 Jun. 11.424 UT: m1=5.0, Dia.=4´, DC=6, Cola: visible; 15cm SCT (37x); Salvador Aguirre (Hermosillo, Sonora, Mexico)
2010 Jun. 11.11 UT: m1=5.0, Dia.=7′, DC=7, Cola=60′; 11×80 B; Carlos Labordena (Castellón, España)
2010 Jun. 09.94 UT: m1=7.9 ccd, Dia.=4.0′, DC=7/, tail:30′ in PA:292deg.; 15cm L f/3.2 +CCD); Sergey Shurpakov (Baran’, Belarus)
2010 Jun. 08.94 UT: m1=8.0 ccd, Dia.=4′, DC=8, tail:38′ in PA:287deg.; 15cm L f/3.2 +CCD); Sergey Shurpakov (Baran’, Belarus)
2010 Jun. 07.93 UT: m1=8.0 ccd, Dia.=6.2′, DC=8, tail:38′ in PA:287deg.; 15cm L f/3.2 +CCD); Sergey Shurpakov (Baran’, Belarus)
2010 Jun. 07.375 UT: m1=5.8, Dia.=8′, DC=6; 7X50 B; Marco Goiato (Araçatuba, Brasil) [Luar, altitude do cometa: 10°, extinção atmosférica aplicada, crepúsculo náutico]
2010 Jun. 07.37 UT: m1=5.7*, Dia.=4′, DC=7; 20×80 B; Alexandre Amorim (Florianopolis, Brazil) [alt. 6 degrees]
2010 Jun. 07.364 UT: m1=6.0, Dia.=7′, DC=6/, Cauda=0.5 graus em AP=290 graus; 20X100B; Marco Goiato (Araçatuba, Brasil) [Luar, altitude do cometa: 9°, extinção atmosférica aplicada, crepúsculo astronômico]
2010 Jun. 07.08 UT: m1=6.7 ccd, Dia.=2.1′, DC=7; 25cm L +ccd +Rc filter; Toni Scarmato (Calabria, Italia)
2010 Jun. 07.05 UT: m1=5.4, Dia.=7′, DC=7; 10×50 B; Juan José González (El Portillo – Castrocontrigo, alt. 1047 m., León, España) [En 25x100B: Cola: 1.3º en AP 280º. Obviamente más brillante que en la estimación previa de tres días atrás. Cometa próximo a la visibilidad a simple vista. Estimación realizada antes del orto lunar. Cielo claro de montaña. Altura sobre el horizonte: 10º]
2010 Jun. 06.94 UT: m1=7.3 ccd, Dia.=3.8′, DC=7/, tail:40′ in PA:284deg.; 15cm L f/3.2 +CCD); Sergey Shurpakov (Baran’, Belarus)
2010 Jun. 06.37 UT: m1=5.5, Dia.=7′, DC=7; 10×50 B; Alexandre Amorim (Florianopolis, Brazil) [alt. 7 degrees]
2010 Jun. 06.364 UT: m1=6.3, Dia.=6′, DC=6/, Cauda=0.3 graus em AP=280 graus; 20X100 B; Marco Goiato (Araçatuba, Brasil) [Luar, altitude do cometa: 10°, extinção atmosférica aplicada]
2010 June 05.93 UT: m1=5.6, Dia.=8′, DC=6; 20 cm L; Alexander Manannikov (Ramenskoye, Russia)
2010 Jun. 04.12 UT: m1=6.7, Dia.=8′, DC=6, no cola; 11×80 B; Carlos Labordena (Castellón, España)
2010 Jun. 04.04 UT: m1=6.4, Dia.=7′, DC=6; 25×100 B; Juan José González (Alto del Trichero – Soto y Amío, alt. 1190 m., León, España) [Alguna interferencia de la luz lunar. Altura sobre el horizontre: 7º]
2010 May. 31.36 UT: m1=7.1, Dia.=4′, DC=6; 20×80 B; Alexandre Amorim (Florianopolis, Brazil) [moonlight interference]
2010 May. 27.36 UT: m1=7.3, Dia.=7′, DC=6; 20×80 B; Alexandre Amorim (Florianopolis, Brazil) [moonlight interference]
2010 Maio 26.354 UT: m1=6.9, Dia.=7′, DC=5/, Cauda=0.3 graus em AP=260 graus; 20X100 B; Marco Goiato (Araçatuba, Brasil)
2010 Maio 26.354 UT: m1=6.8, Dia.=8′, DC=4; 7X50 B; Marco Goiato (Araçatuba, Brasil)
2010 Maio 23.354 UT: m1=7.8, Dia.=5′, DC=5; 20X100 B; Marco Goiato (Araçatuba, Brasil)
2010 May. 23.12 UT: m1=7.9, Dia.=6′, DC=4, no cola; 11×80 B; Carlos Labordena (Castellón, España)
2010 Maio 22.354 UT: m1=7.7, Dia.=5′, DC=4; 7X50B; Marco Goiato (Araçatuba, Brasil)
2010 Maio 22.343 UT: m1=7.9, Dia.=4′, DC=5/, Cauda=0.2 graus em AP=240 graus; 20X100 B; Marco Goiato (Araçatuba, Brasil)
2010 May. 22.10 UT: m1=7.2, Dia.=9′, DC=6; 10×50 B; Juan José González (Alto del Castro – Aralla, alt. 1720 m., León, España) [En 20cm SCT (77x): Débil cola de 0.6º en  AP 260º. Estrella de mag. 9.3 (Tycho-2) en la coma. Cielo muy claro de montaña. Altura: 18º ].
2010 May. 19.79 UT: m1=7.5, Dia.=7.5′, DC=5/6; 7×50 B; Chris Wyatt (Walcha, NSW, Australia) [No tail, central condensation a little more pronounced. Comp Star= TYC 1180-226-1; Method= S; Cat= TJ]
2010 May. 17.83 UT: m1=8.5, Dia.=5′, DC=5; 25×100 B; Michael Mattiazzo (Castlemaine, Victoria) [Tycho 2 VT comparison stars. Smoke haze interference. Comet altitude was 17 degrees. The moderately condensed coma is enhanced by a swan band comet filter. No tail observed]
2010 May. 17.14 UT: m1=7.8, Dia.=8′, DC=5; 10×50 B; Juan José González (Cueto Rosales – Riello, alt. 1420 m., León, España) [En 20cm SCT (77x): coma claramente destacada con filtro Swan. Más brillante que lo previsto. Cielo muy claro de montaña. Comienzo del crepúsculo astronomico. Altura sobre el horizonte: 18º]
2010 May. 16.35 UT: m1=8.5, Dia.=5′, DC=5; 20×80 B; Alexandre Amorim (Florianopolis, Brazil)
2010 May. 16.13 UT: m1=8.4, Dia.=7′, DC=4, no cola; 23.5cm SCT (67x); Carlos Labordena (Castellón, España)
2010 May. 15.76 UT: m1=8.0, Dia.=9.5’, DC=4; 7×50 B; Chris Wyatt (Walcha, NSW, Australia) [No tail, coma has small central condensation, not quite stellar, coma large and faint, seen with direct vision. Comp Star= TYC 1182-516-1; Method= S; Cat= TJ]
2010 Maio 15.333 UT: m1=8.5, Dia.=6′, DC=5/; 22cm L f:6.5 (60x); Marco Goiato (Araçatuba, Brasil) [Nuvens]
2010 Maio 15.333 UT: m1=8.5, Dia.=6′, DC=5; 20x100B; Marco Goiato (Araçatuba, Brasil) [Nuvens]
2010 May. 14.79 UT: m1=8.6, Dia.=4′, DC=4; 25×100 B; David A. J. Seargent (Cowra, NSW, Australia) [May have been slightly brighter through Swan Band filter]
2010 May. 14.77 UT: m1=8.5, Dia.=3’, DC=3; 7×50 B; Chris Wyatt (Walcha, NSW, Australia) [No tail, coma diffuse, close to bright star, coma easily resolved with direct vision. Comp Star= TYC 1178-163-1; Method= S; Cat= TJ]
2010 Maio 14.333 UT: m1=9.1:, Dia.=5′, DC=5/; 22cm L f:6.5 (60x); Marco Goiato (Araçatuba, Brasil) [Nuvens]
2010 May. 13.78 UT: m1=8.0, Dia.=5.1’, DC=4/5; 25cm L f:5 (39x); Chris Wyatt (Walcha, NSW, Australia) [Coma bright, slightly elongated to WSW (seems broad at x83), faint outer coma edges gradually concentrating to centre, central condensation not quite stellar. Comp Star= TYC 1181-1080-1; Method= S; Cat= TJ]
2010 May. 11.77 UT: m1=8.3, Dia.=5.1’, DC=5; 25cm L f:5 (39x); Chris Wyatt (Walcha, NSW, Australia) [Coma bright, central condensation tight but not stellar, coma elongated to WSW. Comp Star= TYC 1722-1182-1; Method= S; Cat= TJ]
2010 May. 10.76 UT: m1=9.1, Dia.=4.8’, DC=4/5; 25cm L f:5 (39x); Chris Wyatt (Walcha, NSW, Australia) [Coma bright, central condensation not quite stellar, coma seems elongated NE to SW slightly, 12 degrees above horizon. At x83 coma seems to have a faint broad extension to the West. Comp Star= TYC 1177-1469-1; Method= S; Cat= TJ]
2010 May. 06.78 UT: m1=9.6, Dia.=3.2’, DC=3/4; 25cm L f:5 (39x); Chris Wyatt (Walcha, NSW, Australia) [No tail, coma diffuse, gradual brightening toward centre, elongated slightly to North, moonlight affected. Comp Star= TYC 1173-;702-1 Method= S; Cat= TJ]
2010 May. 06.470 UT: m1=10.0, Dia.=2´, DC=3/4, Cola: no visible; 15cm SCT (37x); Salvador Aguirre (Hermosillo, Sonora, Mexico)
2010 May. 01.77 UT: m1=10.9, Dia.=1.5′, DC=4; 40.0cm L f/4.5 (144x); Seiichi Yoshida (Gunma, Japan)
2010 Abr. 25.333 UT: m1=10.0, Dia.=2.5′, DC=4; 22cm L f:6.5 (60x); Marco Goiato (Araçatuba, Brasil)
2010 Apr. 22.76 UT: m1=9.9, Dia.=1.3’, DC=2/3; 25cm L f:5 (x39); Chris Wyatt (Walcha, NSW, Australia) [Diffuse coma with even surface brightness, slight brightening toward centre, appears elongated WSW to ESE and elongation visible in periods of good seeing using averted vision, comet was 10 degrees above horizon. Comp Star= TYC 580-159-1; Method= S; Cat= TJ]
2010 Abr. 21.354 UT: m1=10.1, Dia.=2.5′, DC=4; 22cm L f:6.5 (60x); Marco Goiato (Araçatuba, Brasil)
2010 Apr. 20.76 UT: m1=10.1, Dia.=5.5’, DC=3; 25cm L f:5 (39x); Chris Wyatt (Walcha, NSW, Australia) [Diffuse coma, no tail, zodiacal light interference. Coma slightly elongated to NW, 12 degrees above horizon. Comp Star= TYC 580-59-1; Method= S; Cat= TJ]
2010 Apr. 18.40 UT: m1=10.2:; 11×70 B; Alexandre Amorim (San Rafael, Argentina) [zodiacal light]
2010 Abr. 18.354 UT: m1=10.2, Dia.=2′, DC=4; 22cm L f:6.5 (160x); Marco Goiato (Araçatuba, Brasil) [Crepúsculo náutico]
2010 Abr. 17.354 UT: m1=10.2:, Dia.=2′, DC=4; 22cm L f:6.5 (160x); Marco Goiato (Araçatuba, Brasil) [Crepúsculo náutico]
2010 Apr. 13.77 UT: m1=11.6, Dia.= 2.5’, DC=3/4; 25cm L f:5 (x83); Chris Wyatt (Walcha, NSW, Australia) [Coma diffuse, no tail, zodiacal light interference, low on horizon. Comp Star= GSC-0569-1084; Method= S; Cat= HS]
2010 Apr. 12.35 UT: m1=10.5:; 18cm L (45x); Alexandre Amorim (Florianopolis, Brazil) [alt. 23 degrees]
2010 Abr. 11.343 UT: m1=10.7:, Dia.=1.5′, DC=4/; 22cm L f:6.5 (160x); Marco Goiato (Araçatuba, Brasil) [Luar]
2010 Abr. 10.20 UT: m1=10.2, Dia.=1.5′, DC=5/; 20cm SCT (100x); Juan José González (Cueto Rosales – Riello, alt. 1420 m., León, España) [Más brillante que lo previsto. Cielo muy claro de montaña. Crepúsculo astronómico. Altura sobre el horizonte: 8º]

P/2009 Q4 (Boattini) (2 observaciones)
2010 Feb. 06.40 TU: m1=17.0 ccd, Dia.=0.26′, DC=4/;  0.36-m f/3.8 reflector + CCD; Sergey Shurpakov (Baran’, Belarus)
2010 Jan. 24.60 UT: m1=14.7 ccd, Dia.=0.4′, Tail=7′; 18cm reflector + CCD; Artyom Novichonok (remotely Moorook, Australia)

C/2009 P2 (Boattini) (1 observación)
2010 Jun. 10.35, m1=19.3 ccd, Dia.=0.18′, DC=8/; 36cm L f/3.8 +CCD; Sergey Shurpakov (Baran’, Belarus)

C/2009 P1 (Garradd) (14 observaciones)
2010 Dec. 31.44 UT: m1=13.0, Dia.=1.1’, DC=1/2; 25cm L f:5 (83x); Chris Wyatt (Walcha, NSW, Australia) [No tail, coma small and diffuse, visible with averted vision. Comp Star= GSC-6960-1297; Method= S; Cat= HS]
2010 Dez. 30.968 UT: m1=10.7, Dia.=2.5′, DC=4; 22cm L f:6.5 (160x); Marco Goiato (Araçatuba, Brasil)
2010 Dec. 29.44 UT: m1=13.8, Dia.=1.2’, DC=2/3; 25cm L f:5 (83x); Chris Wyatt (Walcha, NSW, Australia) [No tail, diffuse, visible with averted vision in good seeing.Comp Star= GSC-6960-1847; Method= S; Cat= HS]
2010 Dec. 04.39 UT: m1=13.0, Dia.=1.0′, DC=4; 40cm L f:4 (144x); Seiichi Yoshida (Kita-karuizawa, Gunma, Japan)
2010 Nov. 25.43 UT: m1=13.2, Dia.=0.8′, DC=3; 25cm L f:5 (83x); Chris Wyatt (Walcha, NSW, Australia) [No tail, coma small and diffuse, slight central condensation appearing using averted vision. Comp Star= GSC-7491-0203; Method= S; Cat= HS]
2010 Nov. 24.79 UT: m1=11.5, Dia.=2.0′, DC=5; 20cm SCT (100x); Juan José González (Aralla, alt. 1440 m., León, España) [Altura sobre el horizonte: 14º]
2010 Nov. 08.46 UT: m1=13.6, Dia.=1’, DC=5/6; 25cm L f:5 (83x); Chris Wyatt (Walcha, NSW, Australia) [No tail, small star-like central condensation, uniformly diffuse outer coma. Comp Star= GSC-7492-0890; Method= S; Cat= HS]
2010 Nov. 07.958 UT: m1=12.3, Dia.=2′, DC=4; 22cm L f:6.5 (160x); Marco Goiato (Araçatuba, Brasil)
2010 Out. 29.958 UT: m1=12.8, Dia.=1′, DC=4; 22cm L f:6.5 (160x); Marco Goiato (Araçatuba, Brasil)
2010 Sep. 12.66 UT: m1=13.3 ccd, Dia.=0.7′; 18cm L +CCD; Artyom Novichonok & Dimitry Chestnov (remotely Moorook, Australia)
2010 Sep. 10.42 UT: m1=13.4 ccd, Dia.=0.7′; 18 cm L + CCD; Artyom Novichonok & Dimitry Chestnov (remotely Moorook, S. Australia)
2010 Sep. 02.38 UT: m1=14.2, Dia.= 1’, DC=1; 25cm L f:5 (83x); Chris Wyatt (Walcha, NSW, Australia) [No tail, coma small and diffuse, averted vision. Comp Star= GSC-8006-1011; Method= S; Cat= HS]
2010 Set. 02.125 UT: m1=[13.0, 22cm L f:6.5 (230x); Marco Goiato (Araçatuba, Brasil)
2010 Ago. 20.10 UT: m1=12.8, Dia.=0.7′, DC=4; 20cm SCT (133x); Juan José González (Pandorado, alt. 1190 m., León, España) [Cielo muy claro de montaña. Altura sobre el horizonte: 10º. Estrellas de campo comprobadas en el DSS. Estrellas de comparación de la fotometría Henden, campo Neptuno-7 cerca de Upsilon Cap]

C/2009 O2 (Catalina) (10 observaciones)
2010 Abr. 16.937 UT: m1=10.7:, Dia.=2′, DC=1; 22cm L f:6.5 (160x); Marco Goiato (Araçatuba, Brasil)
2010 Abr. 11.937 UT: m1=10.5, Dia.=2′, DC=1; 22cm L f:6.5 (160x); Marco Goiato (Araçatuba, Brasil) [Contorno levemente irregular, altitude do cometa= 13-14°]
2010 Apr. 11.91 UT: m1=[10.4; 18cm L (45x); Alexandre Amorim (Florianopolis, Brazil) [alt. 14 degrees]
2010 Abr. 10.84 UT: m1=10.4, Dia.=2′, DC=1, no cola; 23.5cm SCT (67x); Carlos Labordena (Castellón, España)
2010 Abr. 09.937 UT: m1=10.4:, Dia.=2′, DC=1; 22cm L f:6.5 (160x); Marco Goiato (Araçatuba, Brasil) [Crepúsculo náutico / altitude do cometa= 12°]
2010 Mar. 15.20 UT: m1=9.8, Dia.=5′, DC=1; 20cm SCT (77x); Juan José González (Aralla, alt. 1440 m., León, España) [Desde cielos oscuros de montaña la coma se muestra amplia y difusa, sin condensación central. Varias estrellas en la coma, la más brillante con mag. 11.9 (TK)]
2010 Mar. 14.21 UT: m1=10.6, Dia.=2′, DC=2, no cola; 23.5cm SCT (94x); Carlos Labordena (Castellón, España)
2010 Mar. 10.16 UT: m1=10.2, Dia.=3′, DC=3; 20cm SCT (77x); Juan José González (Alto del Trichero – Soto y Amío, alt. 1190 m., León, España) [Altura: 14º]
2010 Feb. 20.24 UT: m1=11.9, Dia.=1.2′, DC=4; 20cm SCT (133x); Juan José González (Armada – Lena, alt. 700 m, Asturias, España) [Cielo muy claro de montaña. Estrellas de campo comprobadas en el DSS. Movimiento seguido durante 25 minutos. Altura sobre el horizonte: 22º]
2010 Feb. 10.07 UT: m1=10.8, Dia.=2′, DC=3; 13 cm reflector; Artyom Novichonok (Vikshitsa fields, Russia)

C/2009 K5 (McNaught) (86 observaciones)
2010 Dec. 04.80 UT: m1=[14.5, Dia.=0.7′; 40cm L f:4 (144x); Seiichi Yoshida (Kita-karuizawa, Gunma, Japan)
2010 Oct. 18.18 UT: m1=11.3, Dia.=3′, DC=2; 20cm SCT (100x); Juan José González (Alto del Castro – Aralla, alt. 1720 m., León, España)
2010 Oct. 14.01 UT: m1=11.5, Dia.=3′, DC=2; 20cm SCT (100x); Juan José González (Pandorado, alt. 1720 m., León, España)
2010 Sep. 19.06 UT: m1=13.6 ccd, Dia.=1.6′, DC=7, tail 7′ in PA 42 deg.; 41cm L f/3.8 +CCD; Sergey Shurpakov (Belarus)
2010 Sep. 10.08 UT: m1=11.0, Dia.=2.5′, DC=2; 20cm SCT (100x); Juan José González (Alto del Castro – Aralla, alt. 1720 m., León, España)
2010 Sep. 05.08 UT: m1=11.0, Dia.=2′, DC=3; 20 cm SCT (100x); Juan José González (Alto del Castro – Aralla, alt. 1720 m., León, España)
2010 Sep. 04.14 UT: m1= 11.3, Dia=2′, DC=3, no cola, 23.5cm SCT(67x); Carlos Labordena (Castellón, España)
2010 Ago. 20.17 UT: m1=10.8, Dia.=3′, DC=3; 20cm SCT (77x); Juan José González (Pandorado, alt. 1190 m., León, España)
2010 Aug. 16.92 UT: m1=12.0:, Dia.=1.2′; 25.4 cm reflector (85x); Artyom Novichonok (Sheltozero, Russia)
2010 Aug. 15.90 UT: m1=11.6, Dia.=1.3′, DC=2/; 25.4 cm reflector (85x); Artyom Novichonok (Sheltozero, Russia)
2010 Ago. 08.10 UT: m1=10.8, Dia.=3′, DC=4, no cola; 23.5cm SCT (67x); Carlos Labordena (Castellón, España)
2010 Aug. 07.75 UT: m1=11.4, Dia.=1.0′, DC=4; 40.0cm L f/4.5 (144x); Seiichi Yoshida (Gunma, Japan) [It has faded, but still bright and visible visually]
2010 Ago. 06.91 UT: m1=10.2, Dia.=3′, DC=3/; 20cm SCT (77x); Juan José González (Alto del Castro – Aralla, alt. 1720 m., León, España) [Altura: 12º]
2010 Ago. 03.90 UT: m1=10.3, Dia.=3.5′, DC=4; 20cm SCT (77x); Juan José González (Alto del Castro – Aralla, alt. 1720 m., León, España) [Altura: 14º]
2010 Jul. 18.03 UT: m1=9.4, Dia.=4′, DC=4/; 20cm SCT (77x); Juan José González (Alto del Castro – Aralla, alt. 1720 m., León, España)
2010 Jul. 04.96 UT: m1=9.1, Dia.=4′, DC=5; 20cm SCT (77x); Juan José González (Alto del Castro – Aralla, alt. 1720 m., León, España)
2010 Jun. 30.85 UT: m1=10.4 ccd, Dia.=2.1′, DC=6; 25cm L +ccd +Rc filter; Toni Scarmato (Calabria, Italia)
2010 Jun. 22.08 UT: m1=8.4, Dia.=5′, DC=5/, Cola:0.2º en AP:20º; 25×100 B; Juan José González (Alto del Castro – Aralla, alt. 1720 m., León, España)
2010 Jun. 18.09 UT: m1=8.5, Dia.=6′, DC=5/; 20 cm SCT (77x); Juan José González (Alto del Castro – Aralla, alt. 1720 m., León, España)
2010 Jun. 17.92 UT: m1=9.9 ccd, Dia.=2.1′, DC=6; 25cm L +ccd +Rc filter; Toni Scarmato (Calabria, Italia)
2010 Jun. 17.09 UT: m1=8.6, Dia.=4′, DC=4, no cola; 20cm SCT (50x); Carlos Labordena (Castellón, España)
2010 Jun. 15.187 UT: m1=8.5, Dia.=4´, DC=6, Cola: no visible; 15cm SCT (37x), Salvador Aguirre (Hermosillo, Sonora, Mexico)
2010 Jun. 15.07 UT: m1=8.4, Dia.=5′, DC=5/; 10×50 B; Juan José González (Alto de Carmona – Tábara, alt. 970 m., Zamora, España) [En 25x100B: Cola:0.3º en AP:20º]
2010 Jun. 11.165 UT: m1=8.0, Dia.=4´, DC=5, Cola: no visible; 15cm SCT (37x); Salvador Aguirre (Hermosillo, Sonora, Mexico)
2010 Jun. 11.11 UT: m1=8.6, Dia.=4′, DC=4, no cola; 20cm SCT (50x); Carlos Labordena (Castellón, España)
2010 Jun. 07.04 UT: m1=8.2, Dia.=6′, DC=5/; 10×50 B; Juan José González (El Portillo – Castrocontrigo, alt. 1047 m., León, España) [En 25x100B: Cola: 0.4º en AP 20º]
2010 Jun. 06.83 UT: m1=10.0 ccd, Dia.=2.1′, DC=7; 25cm L +ccd +Rc filter; Toni Scarmato (Calabria, Italia)
2010 Jun. 04.02 UT: m1=8.3, Dia.=4′, DC=6; 10×50 B; Juan José González (Alto del Trichero – Soto y Amío, alt. 1190 m., León, España) [En 20 cm SCT (77x): Cola: 0.4º en AP 20º]
2010 May. 23.10 UT: m1=8.0, Dia.=7′, DC=4, Cola= 10′; 11×80 B; Carlos Labordena (Castellón, España)
2010 May. 22.09 UT: m1=8.1, Dia.=8′, DC=6; 10×50 B; Juan José González (Alto del Castro – Aralla, alt. 1720 m., León, España) [En 20cm SCT (77x): Cola: 0.2º en AP 340º]
2010 May. 17.03 UT: m1=8.1, Dia.=6′, DC=6; 10×50 B; Juan José González (Cueto Rosales – Riello, alt. 1420 m., León, España) [En 20cm SCT (77x): m1=8.5, Cola: 0.3º en AP 310º]
2010 May. 14.94 UT: m1=8.0, Dia.=7′, DC=4, Cola= 15′; 11×80 B; Carlos Labordena (Castellón, España)
2010 May. 07.02 UT: m1=8.0, Dia.=8′, DC=5/; 10×50 B; Juan José González (San Mamés de Campos, alt. 840 m, Palencia, España)
2010 May. 06.458 UT: m1=8.0, Dia.=4´, DC=4, Cola: no visible; 15cm SCT (37x); Salvador Aguirre (Hermosillo, Sonora, Mexico)
2010 May. 05.98 UT: m1=7.9, Dia.=8′, DC=5/; 10×50 B; Juan José González (Pandorado, alt. 1190 m, León, España) [En 20cm SCT (77x): m1=8.2]
2010 May. 05.92 UT: m1=10.5 ccd, Dia.=1.4′, DC=7; 25cm L +ccd +Rc filter; Toni Scarmato (Calabria, Italia)
2010 May. 03.50 UT: m1=8.3, Dia.=5.5′, DC=6/; 40.0cm L f/4.5 (36x); Seiichi Yoshida (Gunma, Japan)
2010 May. 02.52 UT: m1=8.5, Dia.=7′, DC=7; 40.0cm L f/4.5 (36x); Seiichi Yoshida (Gunma, Japan)
2010 May. 01.52 UT: m1=8.2, Dia.=7′, DC=7; 40.0cm L f/4.5 (36x); Seiichi Yoshida (Gunma, Japan)
2010 Apr. 30.99 UT: m1=10.1 ccd, Dia.=1.5′, DC=7; 25cm L +ccd +Rc filter; Toni Scarmato (Calabria, Italia)
2010 Abr. 21.333 UT: m1=8.1, Dia.=5′, DC=5; 20X100 B; Marco Goiato (Araçatuba, Brasil) [altitude do cometa= 11°]
2010 Apr. 20.420 UT: m1=7.7, Dia.=5´, DC=4´, Cola: no visible; 15cm SCT (37x); Salvador Aguirre (Hermosillo, Sonora, Mexico)
2010 Apr. 19.97 UT: m1=7.9:, Dia.=7.7′, DC=4; 13 cm reflector; Artyom Novichonok (Konchezero, Russia)
2010 Apr. 18.92 UT: m1=8.2, Dia.=5.5′, DC=4; 20×80 binoculars; Artyom Novichonok (Kondopoga, Russia)
2010 Abr. 18.333 UT: m1=8.2, Dia.=4′, DC=5; 22cm L f:6.5 (60x); Marco Goiato (Araçatuba, Brasil) [altitude do cometa= 15°]
2010 Abr. 18.06 UT: m1=8.0, Dia.=6, DC=6; 20×50 B; Alfons Diepvens (Balen, Bélgica)
2010 Abr. 17.333 UT: m1=8.2, Dia.=5′, DC=4; 20X100 B; Marco Goiato (Araçatuba, Brasil) [altitude do cometa= 17°]
2010 Abr. 17.11 UT: m1=8.1 Dia.=6, DC=6; 20×50 B; Alfons Diepvens (Balen, Bélgica)
2010 Abr. 17.07 UT: m1=7.9, Dia.=7′, DC=4; 10×50 B; Juan José González (La Cruz – Lieres, alt. 520 m, Asturias, España) [En 20 cm SCT (77x): m1=8.1. Débil cola: 0.3º en AP 270º]
2010 Apr. 13.76 UT: m1=7.8, Dia.=7.7’, DC=4/5; 25cm L f:5 (39x); Chris Wyatt (Walcha, NSW, Australia) [No tail, coma bright, seen 5 degrees above local horizon. Comp Star= TYC 3158-2034-1; Method= S; Cat= TJ]
2010 Apr. 12.33 UT: m1=8.7, Dia.=3′, DC=6; 20×80 B; Alexandre Amorim (Florianopolis, Brazil) [alt. 17 degrees]
2010 Apr. 11.98 UT: m1=8.2, Dia.=5.2′, DC=2; 20×80 binoculars; Artyom Novichonok (Kondopoga, Russia)
2010 Abr. 11.46 UT: m1=8.0, Dia.=4´, DC=5´, Cola: no visible; 15cm SCT (37x), Salvador Aguirre (Hermosillo, Sonora, Mexico)
2010 Abr. 11.354 UT: m1=8.3, Dia.=6′, DC=4; 20X100 B; Marco Goiato (Araçatuba, Brasil) [Crepúsculo náutico]
2010 Abr. 11.07 UT: m1=8.6, Dia.=6′, DC=4, no cola; 23.5cm SCT (67x); Carlos Labordena (Castellón, España)
2010 Apr. 10.77 UT: m1=8.5, Dia.=4.8’, DC=5; 20cm T f:10 (63x); Chris Wyatt (Walcha, NSW, Australia) [No tail, coma appears elongated to SW slightly, observed in moonlight. Comp Star= TYC 3136-761-1; Method= S; Cat= TJ]
2010 Abr. 10.333 UT: m1=8.3, Dia.=5′, DC=4/; 20X100 B; Marco Goiato (Araçatuba, Brasil)
2010 Abr. 10.12 UT: m1=8.2, Dia.=6′, DC=4, Cola: 0.5º en AP 260º; 20cm SCT (77x); Juan José González (Cueto Rosales – Riello, alt. 1420 m., León, España) [Amplia y débil cola]
2010 Apr. 10.07 UT: m1=8.1, Dia.=4′, DC=5; 20X50 B; Alfons Diepvens (Balen, Belgium)
2010 Apr. 09.08 UT: m1=8.2, Dia.=4′, DC=5; 20X50 B; Alfons Diepvens (Balen, Belgium)
2010 Apr. 07.10 UT: m1=8.1, Dia.=2′, DC=5; 20X50 B; Alfons Diepvens (Balen, Belgium)
2010 Apr. 05.07 UT: m1=8.1, Dia.=2′, DC=5; 20X50 B; Alfons Diepvens (Balen, Belgium)
2010 Abr. 05.04 UT: m1=8.3, Dia.=7′, DC=3; 25×100 B; Juan José González (Alto del Trichero – Soto y Amío, alt. 1190 m., León, España) [En 20 cm SCT (77x): Coma elongada en AP 250º]
2010 Apr. 04.02 UT: m1=11.9 ccd, Dia.=0.6′, DC=7; 25cm L +ccd +Rc filter; Toni Scarmato (Calabria, Italia)
2010 Apr. 03.94 UT: m1=8.5, Dia.=7.7′, DC=4; 13 cm reflector; Artyom Novichonok (Spasskaya Guba, Russia)
2010 Mar. 30.17 UT: m1=8.8, Dia.=4′, DC=4, no cola; 23.5cm SCT (67x); Carlos Labordena (Castellón, España)
2010 Mar. 27.19 UT: m1=8.5, Dia.=6′, DC=4; 20cm SCT (77x); Juan José González (Gulpiyuri-Naves, Llanes, alt. 20 m., Asturias, España)
2010 Mar. 25.74 UT: m1=8.1, Dia.=7’, DC=4/5; 25cm L f:5 (x39); Chris Wyatt (Walcha, NSW, Australia) [Inner coma seems slightly elongated to West and East, outer edge of coma faint but circular. Comp Star= TYC 1067-531-1; Method= S; Cat= TJ]
2010 Mar. 23.71 UT: m1=8.5, Dia.=6.4’, DC=4/5; 25cm L f:5 (x39); Chris Wyatt (Walcha, NSW, Australia) [No tail, coma slightly elongated to West. Comp Star= TYC 1067-531-1; Method= S; Cat= TJ]
2010 Mar. 20.343 UT: m1=8.9, Dia.=4′, DC=5; 20X100 B; Marco Goiato (Araçatuba, Brasil)
2010 Mar. 19.73 UT: m1=8.2, Dia.=5.8’, DC=5; 20cm T f:6 (39x); Chris Wyatt (Walcha, NSW, Australia) [No tail, coma slightly elongated to SW. Comp Star= TYC 1046-380-1; Method= S; Cat= TJ]
2010 Mar. 18.72 UT: m1=8.9, Dia.=5’, DC=5; 25cm L f:5 (39x); Chris Wyatt (Walcha, NSW, Australia) [Coma circular, no tail, background star in coma. Comp Star= TYC 1042-2041-1; Method= S; Cat= TJ]
2010 Mar. 18.06 UT: m1=9.2, Dia.=4.6′, DC=5; 13 cm reflector; Artyom Novichonok (Konchezero, Russia)
2010 Mar. 16.72 UT: m1=8.7, Dia.=6.4’, DC=5; 25cm L f:5 (39x); Chris Wyatt (Walcha, NSW, Australia) [Coma circular, diffuse outer coma with gradual brightening towards centre, not quite stellar, no tail. Comp Star= TYC 476-166-1; Method= S; Cat= TJ]
2010 Mar. 15.19 UT: m1=9.1, Dia.=5′, DC=3/; 20 cm SCT (77x); Juan José González (Aralla, alt. 1440 m., León, España)
2010 Mar. 14.16 UT: m1=10.0, Dia.=3′, DC=3, no cola; 23.5cm SCT (67x); Carlos Labordena (Castellón, España)
2010 Mar. 13.333 UT: m1=9.2, Dia.=4′, DC=5; 22cm L f:6.5 (60x); Marco Goiato (Araçatuba, Brasil)
2010 Mar. 10.15 UT: m1=9.3, Dia.=4′, DC=4; 20cm SCT (77x); Juan José González (Alto del Trichero – Soto y Amío, alt. 1190 m., León, España) [Varias estrellas en la coma, la más brillante de mag. 12.2 (GSC). Altura sobre el horizonte: 15º]
2010 Feb. 24.48 UT: m1=11.7 ccd, Dia.=0.20′, DC=8; 0.41-m f/9 Ritchey-Chretien telescope + CCD; Sergey Shurpakov (Baran’, Belarus)
2010 Fev. 21.312 UT: m1=10.4 , Dia.=1.5′, DC=4/; 22cm L f:6.5 (160x); Marco Goiato (Araçatuba, Brasil)
2010 Feb. 20.22 UT: m1=10.2, Dia.=2.2′, DC=3/; 20cm SCT (77x); Juan José González (Armada – Lena, alt. 700 m, Asturias, España) [Altura sobre el horizonte: 15º]
2010 Feb. 19.508 UT: m1=11.5, Dia.=3´, DC=3, Cola: No; 15cm SCT (37x); Salvador Aguirre (Hermosillo, Sonora, Mexico)
2010 Feb. 17.525 UT: m1=11.5, Dia.=3´, DC=3, Cola: No; 15cm SCT (37x); Salvador Aguirre (Hermosillo, Sonora, Mexico)
2010 Feb. 12.71 UT: m1=10.5, Dia.=3’, DC=2; 25cm L f:5 (39x); Chris Wyatt (Walcha, NSW, Australia) [Coma larger than previous observation, diffuse, no tail, no visible central condensation, observed 9 degrees above horizon. Comp Star= TYC 5703-816-1; Method= S; Cat= TJ]
2010 Feb. 11.72 UT: m1=11.4, Dia.=1.9’, DC=3; 25cm L f:5 (83x); Chris Wyatt (Walcha, NSW, Australia) [No tail, coma diffuse with gradual brightening towards the centre, observed 11 degrees above horizon. Comp Star= GSC-5703-2365; Method= S; Cat= HS]
2010 Jan. 22.73 UT: m1=12.4, Dia.=0.7’, DC=2; 25cm L f:5 (139x); Chris Wyatt (Walcha, NSW, Australia) [Coma diffuse, averted vision, coma seems elongated NE to SW at x166. Comp Star= GSC-6276-2203; Method= S; Cat= HS]

C/2009 K2 (Catalina) (1 observación)
2010 Jun. 10.38 UT: m1=18.4 ccd, Dia.=0.24′, DC=8/; 36cm L f/3.8 +CCD; Sergey Shurpakov (Baran’, Belarus)

C/2009 F4 (McNaught) (1 observación)
2010 Jun. 15.52 UT: m1=15.6 ccd, Dia.=2.4′, DC=8, Tail=0,36′ in PA=28deg.; 15cm R f/7 + CCD; Sergey Shurpakov (Baran’, Belarus)

C/2009 F2 (McNaught) (1 observación)
2010 Jun. 14.19 UT: m1=16.9 ccd, Dia.=0.25′, DC=8; 36cm L f/3.8 +CCD; Sergey Shurpakov (Baran’, Belarus)

C/2008 Q3 (Garradd) (1 observación)
2010 Feb. 20.35 UT: m1=16.3 ccd, Dia.=0.25′, DC=7/; 0.36-m L f/3.8 + CCD; Sergey Shurpakov (Baran’, Belarus)

C/2008 P1 (Garradd) (1 observación)
2010 Sep. 19.10 UT: m1=18.8 ccd, Dia.=0.19′, DC=3/; 41cm L f/3.8 +CCD; Sergey Shurpakov (Belarus)

C/2008 N1 (Holmes) (2 observaciones)
2010 Jun. 14.21 UT: m1=18.1 ccd, Dia.=0.26′, DC=7/; 36cm L f/3.8 +CCD; Sergey Shurpakov (Baran’, Belarus)
2010 Feb. 20.36 UT: m1=17.2 ccd, Dia.=0.32′, DC=8; 0.36-m L f/3.8 + CCD; Sergey Shurpakov (Baran’, Belarus)

C/2008 FK75 (Lemmon-Siding Spring) (19 observaciones)
2010 Sep. 12.19 UT: m1=14.9 ccd, Dia.=0.6′; 21cm L +CCD; Artyom Novichonok & Dimitry Chestnov (remotely Mayhill, U.S.A.)
2010 Sep. 09.72 UT: m1=14.3 ccd, Dia.=0.6′; 11cm L +CCD; Artyom Novichonok (Kondopoga, Russia) & Evgeny Plyaschenko (Petropavlovsk, Kazakhstan)
2010 Aug. 24.82 UT: m1=15.0 ccd, Dia.=0.5′, DC=3; 25cm L +ccd +Rc filter; Toni Scarmato (Calabria, Italia)
2010 Aug. 07.53 UT: m1=[14.8; 40.0cm L f/4.5 (257x); Seiichi Yoshida (Gunma, Japan) [The sky is very clear and very faint background stars are visible. But unexpectedly, the comet is not visible, although it was reported as 14 mag with a fine shape recently by CCD observations]
2010 Aug. 07.96 UT: m1=14.7 ccd, Dia.=0.5′, DC=3; 25cm L +ccd +Rc filter; Toni Scarmato (Calabria, Italia)
2010 Jul. 29.81 UT: m1=15.2 ccd, Dia.=0.5′, DC=3; 25cm L +ccd +Rc filter; Toni Scarmato (Calabria, Italia)
2010 Jul. 28.82 UT: m1=15.0 ccd, Dia.=0.5′, DC=3; 25cm L +ccd +Rc filter; Toni Scarmato (Calabria, Italia)
2010 Jul. 10.84 UT: m1=15.5 ccd, Dia.=0,5′, DC=4; 25cm L +ccd +Rc filter; Toni Scarmato (Calabria, Italia)
2010 Jul. 09.80 UT: m1=15.3 ccd, Dia.=0.5′, DC=4; 25cm L +ccd +Rc filter; Toni Scarmato (Calabria, Italia)
2010 Jul. 08.82 UT: m1=14.2 ccd, Dia.=0.5′, DC=5; 25cm L +ccd +Rc filter; Toni Scarmato (Calabria, Italia) [I detect a probably activity of the comet the appear to confirm my observation on 20100630: ” Possible outburst or an effect due to the star’s color used. Since my last observation the comet appear to increase the brigthness of 1 magnitude, but I must to note that the star used is TYC 3095:1604:1, Mv=11.892, B-V=+1.0150, Merr=+0.160, (K2).” This evening the star used is Tyc 3095:891:1, Mv=11.636, B-V=+0.4710, Merr=+0.1280. The magnitude increased of 0.5 mag and the afrho value of about 50% since my last observation, from value of 1373 cm to value of 2040 cm for the same aperture of 0.5′ corresponding to 48701 km of radius. The comet show a dust tail in PA 210 deg long 4′.]
2010 Jun. 30.82 UT: m1=14.7 ccd, Dia.=0.5′, DC=6; 25cm L +ccd +Rc filter; Toni Scarmato (Calabria, Italia) [Possible outburst or an effect due to the star’s color used. Since my last observation the comet appear to increase the brigthness of 1 magnitude, but I must to note that the star used is TYC 3095:1604:1, Mv=11.892, B-V=+1.0150, Merr=+0.160, (K2).]
2010 Jun. 17.96 UT: m1=15.6 ccd, Dia.=0.5′, DC=3; 25cm L +ccd +Rc filter; Toni Scarmato (Calabria, Italia)
2010 Jun. 15.19 UT: m1=16.3 ccd, Dia.=0.39′, DC=8/, tail:3′ in PA:229deg.; 36cm L f/3.8 +CCD; Sergey Shurpakov (Baran’, Belarus)
2010 Jun. 14.17 UT: m1=16.1 ccd, Dia.=0.35′, DC=8/, tail:5′ in PA:226deg.; 36cm L f/3.8 +CCD; Sergey Shurpakov (Baran’, Belarus)
2010 Jun. 13.22 UT: m1=15.6 ccd, Dia.=0.38′, DC=8, tail:2′ in PA:221deg.; 36cm L f/3.8 +CCD; Sergey Shurpakov (Baran’, Belarus)
2010 Jun. 10.34 UT: m1=16.0 ccd, Dia.=0.39′, DC=8/; 36cm L f/3.8 +CCD; Sergey Shurpakov (Baran’, Belarus)
2010 Jun. 07.87 UT: m1=15.6 ccd, Dia.=0.5′, DC=3; 25cm L +ccd +Rc filter; Toni Scarmato (Calabria, Italia)
2010 Jun. 06.18 UT: m1=16.2 ccd, Dia.=0.39′, DC=8, tail:2.7′ in PA:227 deg.; 36cm L f/3.8 +CCD; Sergey Shurpakov (Baran’, Belarus)
2010 Abr. 10.17 UT: m1=14.5, Dia.=0.8′, DC=6; 20cm SCT (160x); Juan José González (Cueto Rosales – Riello, alt. 1420 m., León, España) [Estrellas de campo comprobadas en el DSS. Estrellas de comparación de la secuencia Henden de HS687]

C/2007 Q3 (Siding Spring) (37 observaciones)
2010 Sep. 09.66 UT: m1=15.2 ccd, Dia.=0.4′; 11cm L +CCD; Artyom Novichonok (Kondopoga, Russia) & Evgeny Plyaschenko (Petropavlovsk, Kazakhstan)
2010 Aug. 04.37 UT: m1=14.3, Dia.=0.7’, DC=1/2; 25cm L f:5 (83x); Chris Wyatt (Walcha, NSW, Australia) [No tail, 5 degrees above northern horizon. Comp Star= GSC-3480-1314; Method= S; Cat= HS]
2010 Jun. 14.24 UT: m1=14.8 ccd, Dia.=0.51′, DC=8, tail:16′ in PA:245deg.; 36cm L f/3.8 +CCD; Sergey Shurpakov (Baran’, Belarus)
2010 Jun. 13.22 UT: m1=15.2 ccd, Dia.=0.63′, DC=8, tail:21′ in PA:247deg.; 36cm L f/3.8 +CCD; Sergey Shurpakov (Baran’, Belarus)
2010 Jun. 06.17 UT: m1=15.3 ccd, Dia.=0.56′, DC=7/, tail:7′ in PA:243deg.; 36cm L f/3.8 +CCD; Sergey Shurpakov (Baran’, Belarus)
2010 Jun. 05.95 UT: m1=15.0 ccd, Dia.=0.84′; 15cm L f/3.2 +CCD; Sergey Shurpakov (Baran’, Belarus)
2010 Jun. 04.01 UT: m1=12.3, Dia.=1.2′, DC=5; 20cm SCT (100x); Juan José González (Alto del Trichero – Soto y Amío, alt. 1190 m., León, España) [Coma elongada]
2010 May. 17.05 UT: m1=12.8, Dia.=1.0′, DC=5; 20cm SCT (100x); Juan José González (Cueto Rosales – Riello, alt. 1420 m., León, España) [Estrellas de comparación de la secuencia Henden de Z UMi]
2010 May. 15.90 UT: m1=12.6, Dia.=1.5′, DC=4, no cola; 23.5cm SCT (138x); Carlos Labordena (Castellón, España)
2010 May  09.83 UT: m1=14.0 ccd, Dia.=0.4′, DC=5; 25cm L +ccd +Rc filter; Toni Scarmato (Calabria, Italia)
2010 May. 05.99 UT: m1=12.3, Dia.=1.5′, DC=5; 20cm SCT (133x); Juan José González (Pandorado, alt. 1190 m, León, España)
2010 May. 03.47 UT: m1=12.6, Dia.=1.3′, DC=3; 40.0cm L f/4.5 (144x); Seiichi Yoshida (Gunma, Japan)
2010 May. 02.49 UT: m1=12.4, Dia.=1.3′, DC=4/; 40.0cm L f/4.5 (144x); Seiichi Yoshida (Gunma, Japan)
2010 May. 01.48 UT: m1=12.4, Dia.=1.4′, DC=4; 40.0cm L f/4.5 (144x); Seiichi Yoshida (Gunma, Japan)
2010 Apr. 30.97 UT: m1=14.0 ccd, Dia.=0.5′, DC=5; 25cm L +ccd +Rc filter; Toni Scarmato (Calabria, Italia)
2010 Apr. 12.88 UT: m1=[11.8; 13 cm reflector; Artyom Novichonok (Konchezero, Russia)
2010 Abr. 10.98 UT: m1=11.9, Dia.=2′, DC=3, Cola=4′; 23.5cm SCT (94x); Carlos Labordena (Castellón, España)
2010 Abr. 04.86 UT: m1=11.3, Dia.=1.3′, DC=5, Cola: 0.1º en AP 270º; 20 cm SCT (100x); Juan José González (Alto del Trichero – Soto y Amío, alt. 1190 m., León, España)
2010 Apr. 03.97 UT: m1=12.0 ccd, Dia.=2′.1, DC=5; 25cm L +ccd +Rc filter; Toni Scarmato (Calabria, Italia)
2010 Apr. 03.93 UT: m1=11.6, DC=4; 13 cm reflector; Artyom Novichonok (Konchezero, Russia)
2010 Mar. 19.89 UT: m1=12.8 ccd, Dia.=1′, DC=6; 25cm L +ccd +Rc filter; Toni Scarmato (Calabria, Italia)
2010 Mar. 17.85 UT: m1=12.5 ccd, Dia.=0.9′, DC=7; 25cm L +ccd +Rc filter; Toni Scarmato (Calabria, Italia)
2010 Mar. 15.18 UT: m1=11.4, Dia.=2.0′, DC=5, Cola: 0.1º en AP 250º; 20cm SCT (100x); Juan José González (Aralla, alt. 1440 m., León, España)
2010 Mar. 13.96 UT: m1=11.5, Dia.=2′, DC=4, no cola; 23.5cm SCT (94x); Carlos Labordena (Castellón, España)
2010 Mar. 10.13 UT: m1=11.3, Dia.=2.5′, DC=5, Cola:0.2º en AP:250º; 20cm SCT (77x); Juan José González (Alto del Trichero – Soto y Amío, alt. 1190 m., León, España)
2010 Mar. 01.82 UT: m1=11.0, Dia.=1.2′, DC=6; 20 cm SCT (77x); Juan José González (Sierra de Fario, Sariego, alt. 660 m, Asturias, España) [Estimación realizada antes del orto lunar, a baja altura sobre el horizonte: 11º]
2010 Fev. 21.292 UT: m1=11.0:, Dia.=1′, DC=3; 22cm L f:6.5 (160x); Marco Goiato (Araçatuba, Brasil)
2010 Feb. 20.35 UT: m1=12.4 ccd, Dia.=2′, DC=7/, Tail:18′ in PA:265 deg.; 0.36-m L f/3.8 + CCD; Sergey Shurpakov (Baran’, Belarus)
2010 Feb. 20.19 UT: m1=11.1, Dia.=2.5′, DC=6, Cola:0.2º en AP 260º; 20cm SCT (77x); Juan José González (Armada – Lena, alt. 700 m, Asturias, España)
2010 Feb. 17.90 UT: m1=11.0, Dia.=3.5′, DC=3; 13 cm reflector; Artyom Novichonok (Konchezero, Russia)
2010 Feb. 16.93 UT: m1=11.2, Dia.=3.5′, DC=3; 13 cm reflector; Artyom Novichonok (Konchezero, Russia)
2010 Feb. 11.70 UT: m1=11.2, Dia.=2.8’, DC= 2; 25cm L f:5 (39x); Chris Wyatt (Walcha, NSW, Australia) [No tail, coma very diffuse. Comp Star= GSC-3050-1236; Method= S; Cat= HS]
2010 Feb. 10.06 UT: m1=11.3, Dia.=1.7′, DC=6, Cola: 0.2º en AP 270º; 20cm SCT (77x); Juan José González (Caldas de Luna, alt. 1120 m, León, España)
2010 Feb. 10.05 UT: m1=10.9, Dia.=2′, DC=5, Cola= 6′; 23.5cm SCT (67x); Carlos Labordena (Castellón, España)
2010 Fev. 07.312 UT: m1=10.3:, Dia.=2.5′, DC=3; 22cm L f:6.5 (160x); Marco Goiato (Araçatuba, Brasil) [Luar e nuvens]
2010 Jan. 22.70 UT: m1=10.7, Dia.=4.8’, DC=3/4; 25cm L f:5 (39x); Chris Wyatt (Walcha, NSW, Australia) [Faint tail to the West, coma diffuse with small central condensation, 5 degrees above local horizon. Comp Star= TYC 2556-602-1; Method= S; Cat= TJ]
2010 Ene. 13.10 UT: m1=9.5, Dia.=3′, DC=4, Cola: 0.2º en AP 270º; 20cm SCT (77x); Juan José González (Grandota – Oviedo, alt. 430 m, España) [Condensación central cuasi-estelar]

C/2007 N3 (Lulin) (1 observación)
2010 Jan. 24.54 UT: m1=17.5 ccd, Dia.=0.34′, DC=3/; 0.15-m f/7 refractor + CCD; Sergey Shurpakov (D96, Australia)

C/2007 G1 (LINEAR)
(1 observación)
2010 Sep. 19.07 UT: m1=18.3 ccd, Dia.=0.22′, DC=2/; 41cm L f/3.8 +CCD; Sergey Shurpakov (Belarus)

C/2006 W3 (Christensen) (26 observaciones)
2010 Sep. 06.37 UT; m1= 13.2; Dia= 0.7’; DC= 2; 25cm L f:5 (83x); Chris Wyatt (Walcha, NSW, Australia) [Coma very small and diffuse in crowded starfield, averted vision only. Comp Star= GSC-8345-2983; Method= S; Cat= HS]
2010 Ago. 07.021 UT: m1=12.6, Dia.=0.71′, DC=4; 22cm L f:6.5 (230x); Marco Goiato (Araçatuba, Brasil)
2010 Aug. 04.38 UT: m1=11.5, Dia.=3’, DC=3/4; 25cm L f:5 (83x); Chris Wyatt (Walcha, NSW, Australia) [No tail. Comp Star= GSC-8348-0892; Method= S; Cat= HS]
2010 Jul. 18.167 UT: m1=12.1, Dia.=1′, DC=4/; 22cm L f:6.5 (160x); Marco Goiato (Araçatuba, Brasil)
2010 Jul. 07.125 UT: m1=11.9, Dia.=1.5′, DC=4/; 22cm L f:6.5 (160x); Marco Goiato (Araçatuba, Brasil)
2010 Jun. 19.250 UT: m1=11.5, Dia.=2′, DC=4/; 22cm L f:6.5 (160x); Marco Goiato (Araçatuba, Brasil)
2010 Jun. 15.53 UT: m1=13.0 ccd, Dia.=4.95′, DC=6/; 15cm R f/7 refractor +CCD; Sergey Shurpakov (Baran’, Belarus)
2010 Jun. 12.292 UT: m1=11.6, Dia.=1.5′, DC=4/; 22cm L f:6.5 (160x); Marco Goiato (Araçatuba, Brasil)
2010 Jun. 09.34 UT: m1=11.3, Dia.=1′, DC=5; 18cm L (57x); Alexandre Amorim (Florianopolis, Brazil)
2010 Jun. 08.34 UT: m1=11.0, Dia.=1′, DC=4; 18cm L (57x); Alexandre Amorim (Florianopolis, Brazil)
2010 Maio 23.312 UT: m1=11.5, Dia.=2′, DC=4/; 22cm L f:6.5 (160x); Marco Goiato (Araçatuba, Brasil)
2010 Maio 22.312 UT: m1=11.6, Dia.=1.5′, DC=4; 22cm L f:6.5 (160x); Marco Goiato (Araçatuba, Brasil)
2010 May. 22.14 UT: m1=10.5, Dia.=3′, DC=3; 20cm SCT (100x); Juan José González (Alto del Castro – Aralla, alt. 1720 m., León, España) [Cometa próximo a estrella de mag. 11.4 (Tycho-2). Crepúsculo astronómico. Cielo muy claro de montaña. Altura sobre el horizonte: 9º]
2010 Maio 14.229 UT: m1=11.4, Dia.=2′, DC=4/; 22cm L f:6.5 (160x); Marco Goiato (Araçatuba, Brasil)
2010 May. 13.74 UT: m1=10.2, Dia.= 2.3’, DC=3; 25cm L f:5 (39x); Chris Wyatt (Walcha, NSW, Australia) [No tail. Comp Star= TYC 7449-1310-1; Method= S; Cat= TJ]
2010 May. 11.77 UT: m1=11.9, Dia.= 2.2’, DC=4/5; 25cm L f:5 (39x); Chris Wyatt (Walcha, NSW, Australia) [No tail. Comp Star= GSC-7449-0934; Method= S; Cat= HS]
2010 May. 10.72 UT: m1=12.4, Dia.= 1’, DC=5/6; 25cm L f:5 (83x); Chris Wyatt (Walcha, NSW, Australia) [No tail. Comp Star= GSC-7449-0692; Method= S; Cat= HS]
2010 Abr. 25.312 UT: m1=11.7, Dia.=1.5′, DC=4/; 22cm L f:6.5 (160x); Marco Goiato (Araçatuba, Brasil)
2010 Apr. 23.67 UT: m1=10.7, Dia.=4.8’, DC=4/5; 25cm L f:5 (39x); Chris Wyatt (Walcha, NSW, Australia] [No tail, coma slightly elongated to WSW. Comp Star= TYC 7442-1733-1; Method= S; Cat= TJ]
2010 Apr. 22.73 UT: m1=11.0, Dia.=5.1’, DC=4/5; 25cm L f:5 (39x); Chris Wyatt (Walcha, NSW, Australia] [No tail. Comp Star= TYC 7442-1838-1; Method= S; Cat= TJ]
2010 Apr. 20.75 UT: m1=10.2, Dia.=6.4’, DC=4; 25cm L f:5 (39x); Chris Wyatt (Walcha, NSW, Australia) [No tail. Comp Star= TYC 7442-224-1; Method= S; Cat= TJ]
2010 Abr. 17.312 UT: m1=11.7, Dia.=1.5′, DC=4/; 22cm L f:6.5 (160x); Marco Goiato (Araçatuba, Brasil)
2010 Apr. 10.74 UT: m1=12.4, Dia.=<1’, DC=2; 20cm T f:10 (63x); Chris Wyatt (Walcha, NSW, Australia) [No tail, coma diffuse, difficult to see. Comp Star= GSC-6918-0262; Method= S; Cat= HS]
2010 Mar. 25.73 UT: m1=10.0, Dia.=6’, DC=4; 25cm L f:5 (39x); Chris Wyatt (Walcha, NSW, Australia) [No tail, coma diffuse. Comp Star= TYC 6910-611-2; Method= S; Cat= TJ]
2010 Mar. 23.73 UT: m1=10.6, Dia.=6’, DC=4; 25cm L f:5 (39x); Chris Wyatt (Walcha, NSW, Australia) [No tail, coma diffuse. Comp Star= TYC 6914-1673-1; Method= S; Cat= TJ]
2010 Mar. 20.323 UT: m1=11.5, Dia.=1.5′, DC=4; 22cm L f:6.5 (160x); Marco Goiato (Araçatuba, Brasil)
2010 Mar. 13.343 UT: m1=11.2:, Dia.=1.25′, DC=4; 22cm L f:6.5 (160x); Marco Goiato (Araçatuba, Brasil) [Nuvens]

C/2006 S3 (LONEOS) (3 observaciones)
2010 Sep. 11.35 UT: m1=15.0 ccd, Dia.=0.5′; 21cm L +CCD; Artyom Novichonok & Dimitry Chestnov (remotely Mayhill, U.S.A.)
2010 Jul. 18.26 UT: m1=15.4, Dia.=0.7′, Tail=2.5′; 35.5cm L + CCD; Artyom Novichonok & Dimitry Chestnov (remotely Mayhill, U.S.A.)
2010 Jun. 10.38 UT: m1=16.7 ccd, Dia.=0.38′, DC=8; 36cm L f/3.8 +CCD; Sergey Shurpakov (Baran’, Belarus)

C/2006 Q1 (Mc Naught) (6 observaciones)
2010 Jun. 15.18 UT: m1=17.0 ccd, Dia.=0.32′, DC=4/; 36cm L f/3.8 +CCD; Sergey Shurpakov (Baran’, Belarus)
2010 Jun. 14.17 UT: m1=16.5 ccd, Dia.=0.32′, DC=8; 36cm L f/3.8 +CCD; Sergey Shurpakov (Baran’, Belarus)
2010 Jun. 13.21 UT: m1=17.4 ccd, Dia.=0.35′, DC=7, tail:0.58′ in PA:131deg.; 36cm L f/3.8 +CCD; Sergey Shurpakov (Baran’, Belarus)
2010 Jun. 10.33 UT: m1=17.4 ccd, Dia.=0.35′, DC=7/; 36cm L f/3.8 +CCD; Sergey Shurpakov (Baran’, Belarus)
2010 Jun. 06.20 UT: m1=16.8 ccd, Dia.=0.26′, DC=3/; 36cm L f/3.8 +CCD; Sergey Shurpakov (Baran’, Belarus)

C/2006 OF2 (Broughton) (1 observación)
2010 Feb. 20.41 UT: m1=16.9 ccd, Dia.=0.35′, DC=4/, Tail:1.8′ in PA:324 deg.; 0.36-m L f/3.8 + CCD; Sergey Shurpakov (Baran’, Belarus)2010 Feb. 06.37 UT: m1=16.7 ccd, Dia.=0.53′, DC=6/, Tail:1.3′ in PA:323 deg.; 0.36-m f/3.8 reflector + CCD; Sergey Shurpakov (Baran’, Belarus)

C/2005 L3 (McNaught) (2 observaciones)
2010 Jun. 14.23 UT: m1=16.6 ccd, Dia.=0.39′, DC=8, tail:5′ in PA:95deg.; 36cm L f/3.8 +CCD; Sergey Shurpakov (Baran’, Belarus)
2010 Jun. 06.20 UT: m1=16.0 ccd, Dia.=0.49′, DC=7/; 36cm L f/3.8 +CCD; Sergey Shurpakov (Baran’, Belarus)

(596) Scheila ( P/1906 UA) (2 observaciones)
2010 Dic. 17.17 UT: m1=11.5, Dia.=3.5′, DC=s2/; 20cm SCT (100x); Juan José González (Aralla, alt. 1440 m., León, España) [Apariencia cometaria. Condensación central estelar, m2=13.9. Coma asimétrica, con débil región exterior. Extensión en forma de cola de longitud 7′ en AP 290º. Estrellas de campo comprobadas en el DSS. Estrellas de comparación para m2 tomadas de la fotometría Henden del sector de AK Cnc. Cielo muy claro de montaña]
2010 Dic. 14.09 UT: m1=11.7, Dia.=2.5′, DC=s2/; 20cm SCT (100x); Juan José González (Aralla, alt. 1440 m., León, España) [Apariencia cometaria. Condensación central estelar, m2=13.8. Coma asimétrica, con débil región exterior. Extensión en forma de cola de longitud 4′ en AP 290º. Estrellas de campo comprobadas en el DSS. Estrellas de comparación para m2 tomadas de la fotometría Henden del sector de AK Cnc. Cielo muy claro de montaña]

240P/NEAT (3 observaciones)
2010 Dic. 17.22 UT: m1=14.0, Dia.=0.6′, DC=5; 20cm SCT (133x); Juan José González (Aralla, alt. 1440 m., León, España) [Estrellas de campo comprobadas en el DSS. Estrellas de comparación tomadas de la fotometría Henden del sector de AK Cnc. Cielo muy claro de montaña]
2010 Dec. 04.80 UT: m1=14.6, Dia.=0.4′, DC=4; 40cm L f:4 (144x); Seiichi Yoshida (Kita-karuizawa, Gunma, Japan)
2010 Sep. 19.00 UT: m1=16.5 ccd, Dia.=0.27′, DC=8/, tail 0.84′ in PA 262 deg.; 41cm L f/3.8 +CCD; Sergey Shurpakov (Belarus)

235P/LINEAR (1 observación)
2010 May. 05.26 UT: m1=18.7 ccd, Dia.=0.2′; 35.5 cm L +CCD; Artyom Novichonok & Dimitry Chestnov (remotely Mayhill, USA)

223P/Skiff (1 observación)
2010 Sep. 19.02 UT: m1=19.2 ccd, Dia.=0.14′, DC=3; 41cm L f/3.8 +CCD; Sergey Shurpakov (Belarus)

217P/LINEAR (3 observaciones)
2010 Feb. 06.34 UT: m1=13.0 ccd, Dia.=0.21′, DC=5; 0.36-m f/3.8 reflector + CCD; Sergey Shurpakov (Baran’, Belarus)
2010 Feb. 02.88 UT: m1=13.5, Dia.=1.2′, DC=2; 20cm SCT (133x); Juan José González (Camposagrado, alt. 1135 m, León, España) [Estrellas de comparación de la secuencia Henden de V650 Ori]
2010 Ene. 12.92 UT: m1=12.7, Dia.=1.2′, DC=5; 20cm SCT (133x); Juan José González (Grandota – Oviedo, alt. 430 m, España)

215P/NEAT (1 observación)
2010 Jun. 10.39 UT: m1=18.3 ccd, Dia.=0.17′, DC=8; 36cm L f/3.8 +CCD; Sergey Shurpakov (Baran’, Belarus)

213P/Van Ness (2 observaciones)
2010 Jun. 14.20 UT: m1=18.6 ccd, Dia.=0.24′, DC=2/; 36cm L f/3.8 +CCD; Sergey Shurpakov (Baran’, Belarus)
2010 Feb. 20.40 UT: m1=19.1 ccd, Dia.=0.10′, DC=9; 0.36-m L f/3.8 + CCD; Sergey Shurpakov (Baran’, Belarus)

176P/LINEAR (1 observación)
2010 Jun. 10.40 UT: m1=19.7 ccd, Dia.=0.17′, DC=8/; 36cm L f/3.8 +CCD; Sergey Shurpakov (Baran’, Belarus)

169P/NEAT (4 observaciones)
2010 Feb. 20.41 UT: m1=15.9 ccd, Dia.=0.27′, DC=8; 0.36-m L f/3.8 + CCD; Sergey Shurpakov (Baran’, Belarus)
2010 Feb. 06.36 UT: m1=15.7 ccd, Dia.=0.35′, DC=9; 0.36-m f/3.8 reflector + CCD; Sergey Shurpakov (Baran’, Belarus)
2010 Fev. 04.052 UT: m1=14.3:, Dia.=0.25′, DC=6/; 22cm L f:6.5 (230x); Marco Goiato (Araçatuba, Brasil) [próximo ao meu limite visual]
2010 Jan. 24.52 UT: m1=16.5 ccd, Dia.=0.28′, DC=9; 0.15-m f/7 refractor + CCD; Sergey Shurpakov (D96, Australia)

158P/Kowal-LINEAR (2 observaciones)
2010 Jun. 17.34 UT: m1=18.6 ccd, Dia.=0.18′, DC=8; 36cm L f/3.8 +CCD; Sergey Shurpakov (Baran’, Belarus)
2010 June 16.24 UT: m1=18.5:, Dia.=0.2′; 35.5 cm L +CCD; Artyom Novichonok & Dimitry Chestnov (remotely Mayhill, USA)

149P/Mueller (4 observaciones)
2010 Jun. 19.33 UT: m1=18.4 ccd, Dia.=<0.2′; 35.5 cm L +CCD; Artyom Novichonok & Dimitry Chestnov (remotely Mayhill, USA)
2010 May. 08.34 UT: m1=18.2 ccd, Dia.=0.2′; 35.5 cm L +CCD; Artyom Novichonok & Dimitry Chestnov (remotely Mayhill, USA)
2010 May. 05.28 UT: m1=17.9 cdd, Dia.=0.2′; 35.5 cm L +CCD; Artyom Novichonok & Dimitry Chestnov (remotely Mayhill, USA)
2010 Apr. 14.86 UT: m1=18.3 cdd, Dia.=0.15′; 30 cm L +CCD; Artyom Novichonok & Timur Kryachko (remotely Zelenchukskaya Station, Russia)

128P/Shoemaker-Holt (2 observaciones)
2010 Mar. 13.81 UT: m1=13.1, Dia.=1′, DC=3, no cola; 23.5cm SCT (138x); Carlos Labordena (Castellón, España)
2010 Feb. 20.39 UT: m1=18.7 ccd, Dia.=0.17′, DC=8; 0.36-m L f/3.8 + CCD; Sergey Shurpakov (Baran’, Belarus)

118P/Shoemaker-Levy 4 (8 observaciones)
2010 Mar. 13.958 UT: m1=13.1:, Dia.=0.75′, DC=3; 22cm L f:6.5 (230x); Marco Goiato (Araçatuba, Brasil)
2010 Feb. 11.81 UT: m1=12.3, Dia.=1′, DC=3, no cola; 23.5cm SCT (94x); Carlos Labordena (Castellón, España)
2010 Feb. 06.55 UT: m1=13.5 ccd, Dia.=1.0′; 18-cm L + CCD; Artyom Novichonok & D. Chestnov (remotely Moorook, Australia)
2010 Feb. 06.34 UT: m1=12.6 ccd, Dia.=0.98′, DC=7/, Tail:0.37′ in PA:75 deg; 0.36-m f/3.8 reflector + CCD; Sergey Shurpakov (Baran’, Belarus)
2010 Fev. 02.979 UT: m1=12.0, Dia.=1′, DC=4; 22cm L f:6.5 (160x); Marco Goiato (Araçatuba, Brasil)
2010 Feb. 02.82 UT: m1=12.3, Dia.=1.0′, DC=3; 20cm SCT (100x); Juan José González (Camposagrado, alt. 1135 m, León, España)
2010 Jan. 24.50 UT: m1=14.2 ccd, Dia.=0.34′, DC=7/; 0.15-m f/7 refractor + CCD; Sergey Shurpakov (D96, Australia)
2010 Ene. 12.90 UT: m1=11.5, Dia.=1.5′, DC=2/; 20cm SCT (100x); Juan José González (Grandota – Oviedo, alt. 430 m, España)

116P/Wild (2 observaciones)
2010 Jun. 17.37 UT: m1=17.0 ccd, Dia.=0.39′, DC=3/; 36cm L f/3.8 +CCD; Sergey Shurpakov (Baran’, Belarus)
2010 Jun. 10.41 UT: m1=16.5 ccd, Dia.=0.38′, DC=8, tail:2.1′ in PA:265 deg.; 36cm L f/3.8 +CCD; Sergey Shurpakov (Baran’, Belarus)

103P/Hartley (164 observaciones)
2010 Dec. 31.46 UT: m1=9.2, Dia.=6′, DC= 2/3; 25cm L f:5 (39x); Chris Wyatt (Walcha, NSW, Australia) [Coma diffuse. Comp Star= TYC 5965-580-1; Method= S; Cat= TJ]
2010 Dec. 31.04 UT: m1=8.8, Dia.=10′, DC=2; 20×60 B; Willian Souza (Santos, Brazil)
2010 Dec. 30.48 UT: m1=9.5, Dia.=5.5′, DC= 3; 25cm L f:5 (39x); Chris Wyatt (Walcha, NSW, Australia) [Coma appears smaller than the last observation, background stars in coma. Comp Star= TYC 5965-17-1; Method= S; Cat= TJ]
2010 Dez. 30.135 UT: m1=9.1, Dia.=12′, DC=2; 20×100 B; Marco Goiato (Araçatuba, Brasil)
2010 Dez. 30.125 UT: m1=9.2, Dia.=10′, DC=3/; 22cm L f:6.5 (60x); Marco Goiato (Araçatuba, Brasil)
2010 Dec. 29.48 UT: m1=8.4, Dia.=8.5′, DC= 3; 25cm L f:5 (39x); Chris Wyatt (Walcha, NSW, Australia) [No tail, coma diffuse. Comp Star= TYC 5969-974-1; Method= S; Cat= TJ]
2010 Dec. 27.99 UT: m1=8.3, Dia.=10′, DC=2; 20×60 B; Willian Souza (Aguas de Lindoia, Brazil)
2010 Dic. 15.54 UT: m1=7.5, Dia.=15′, DC=2; 7×50 B; Chris Wyatt (Walcha, NSW, Australia) [No tail, coma diffuse. Comp Star= TYC 5987-557-1: Method= S: Cat= TJ]
2010 Dic. 14.52 UT: m1=8.0, Dia.=17′, DC=2; 7×50 B; Chris Wyatt (Walcha, NSW, Australia [No tail, coma slightly condensed. Comp Star= TYC 5987-1775-1: Method= S: Cat= AU]
2010 Dic. 14.12 UT: m1=7.6, Dia.=12′, DC=3; 25×100 B; Juan José González (Aralla, alt. 1440 m., León, España)
2010 Dic. 12.54 UT: m1=7.5, Dia.=10′, DC=1; 7×50 B; Chris Wyatt (Walcha, NSW, Australia) [No tail, coma diffuse. Comp Star= TYC 5987-3116-1: Method= S: Cat= TJ]
2010 Dic. 12.53 UT: m1=8.3, Dia.=9.6′, DC= 4; 25cm L f:5 (39x); Chris Wyatt (Walcha, NSW, Australia) [No tail, coma shows small central condensation with a bar-like feature extending West within the coma, outer coma appears offset to the North. Comp Star= TYC 5983-487-1: Method= S: Cat= TJ]
2010 Dic. 11.55 UT: m1=7.9, Dia.=8´, DC=3; 25×100 B; David A. J. Seargent (The Entrance, NSW, Australia)
2010 Dic. 11.53 UT: m1=7.7, Dia.=20′, DC=1/2: 7×50 B; Chris Wyatt (Walcha, NSW, Australia) [No tail. Comp Star= TYC 5987-216-1: Method= S: Cat= TJ]
2010 Dic. 11.05 UT: m1=7.4, Dia.=12′, DC=2/; 25×100 B; Juan José González (El Fito – Sierra del Sueve, alt. 570 m., Asturias, España)
2010 Dez. 09.145 UT: m1=7.4, Dia.=15′, DC=2; 7×50 B; Marco Goiato (Araçatuba, Brasil)
2010 Dic. 07.51 UT: m1= 7.6, Dia.=12´; 10×50 B; David A. J. Seargent (The Entrance, NSW, Australia)
2010 Dez. 07.156 UT: m1=7.3, Dia.=15′, DC=2; 7x50B: Marco Goiato (Araçatuba, Brasil)
2010 Dez. 05.167 UT: m1=7.6, Dia.=12′, DC=3; 20×100 B; Marco Goiato (Araçatuba, Brasil) [Nebulosidade]
2010 Dec. 04.78 UT: m1=7.6, Dia.=11′, DC=6; 40cm L f:4 (36x); Seiichi Yoshida (Kita-karuizawa, Gunma, Japan)
2010 Dic. 04.09 UT: m1= 7.5, Dia.=10′, DC=3, no cola; 11×80 B; Carlos Labordena (Castellón, España)
2010 Dic. 04.05 UT: m1=7.2, Dia.=15′, DC=3; 10×50 B; Juan José González (Puente del Embalse de Barrios de Luna, alt. 1120 m., León, España)
2010 Nov. 29.00 UT: m1=7.1, Dia.=12′, DC=3/; 10×50 B; Juan José González (Puerto de Aralla, alt. 1545 m., León, España ) [Antes del orto lunar. Altura sobre el horizonte: 16º]
2010 Nov. 28.09 UT: m1=7.0:, Dia.=10′, DC=1; 20×80 B; Alexandre Amorim (Florianopolis,Brazil) [clouds]
2010 Nov. 17.29 UT: m1=6.7, Dia.=10′, DC=2/; 10×50 B; Alexandre Amorim (Florianopolis, Brazil)
2010 Nov. 16.02 UT: m1=6.5, Dia.=10′, DC=4; 25 cm reflector (60x); Vyacheslav Ivanov (Peschanka, Russia)
2010 Nov. 15.250 UT: m1=6.2, Dia.=20′, DC=3, 7x50B; Marco Goiato (Araçatuba, Brasil)
2010 Nov. 14.65 UT: m1=6.9, Dia.=20′, DC=2/3; 7×50 B; Chris Wyatt (Walcha, NSW, Australia) [No tail, coma broad and elongated to North. Comp Star= TYC 5400-4701-1; Method= S; Cat= TJ]
2010 Nov. 14.23 UT: m1=6.0, Dia.=12’, DC=1, Cola: No visible; 20cm SCT (32x); Alberto Anunziato (Oro Verde, Argentina) [Mét. Sidgwick, Cat. Tycho II]
2010 Nov. 14.135 UT: m1=6.1, Dia.=22′, DC=3, 7×50 B; Marco Goiato (Araçatuba, Brasil)
2010 Nov. 13.63 UT: m1=6.6, Dia.=11′, DC=5; 25cm L f:5 (39x); Chris Wyatt (Walcha, NSW, Australia) [No tail, coma large and ciruclar, edges diffuse, gradual brightening to centre, central condensation not stellar. Comp Star= TYC 4828-2768-1; Method= S; Cat= TJ]
2010 Nov. 13.19 UT: m1=5.3, Dia.=30′, DC=4; monocular 4×30; Juan José González (Collada Llomena – Ponga, alt. 995 m., Asturias, España)
2010 Nov. 12.54 UT: m1=6.3, Dia.=20; 10×50 B; David A. J. Seargent (The Entrance, NSW, Australia)
2010 Nov. 12.23 UT: m1=5.8, Dia.=5′, DC=3; 25cm L f/4 (45x); Gonzalo Vargas B (Cochabamba, Bolivia) [Método Bobrovnikoff; Estrellas ref.: GSC 4821 2975 (5.60) y GSC 4820 2829 (6.25); Interferencia de luz lunar:no; Presencia de nubosidad:no; Polución lumínica:si; Altura sobre el horizonte:35grados; Visible a simple vista:no; Magnitud a simple vista:no; MALE a simple vista:5; MALE instrumental:12]
2010 Nov. 12.135 UT: m1=6.0, Dia.=25′, DC=3/, 7x50B; Marco Goiato (Araçatuba, Brasil)
2010 Nov. 11.56 UT: m1=6.1, Dia.=20′; 10×50 B; David A. J. Seargent (The Entrance, NSW, Australia)
2010 Nov. 11.29 UT: m1=6.7, Dia.=12′, DC=3; 20×80 B; Alexandre Amorim (Florianopolis, Brazil)
2010 Nov. 08.64 UT: m1=6.2, Dia.=20’, DC=3/4; 7×50 B; Chris Wyatt (Walcha, NSW, Australia) [Coma large and diffuse, broad fan shaped, elongated to the North, central condensation not stellar but bright and gradual. Faint outer coma visible using averted vision. Comp Star= TYC 4822-3681-1; Method= S; Cat= TJ]
2010 Nov. 08.30 UT: m1=6.6, Dia.=10′, DC=2; 20×80 B; Alexandre Amorim (Florianopolis, Brazil)
2010 Nov. 08.177 UT: m1=5.9, Dia.=30′, DC=3; 8×2.5 B; Marco Goiato (Araçatuba, Brasil)
2010 Nov. 08.167 UT: m1=6.0, Dia.=25′, DC=4; 7×50 B; Marco Goiato (Araçatuba, Brasil)
2010 Nov. 07.30 UT: m1=6.0; 8×30 B; Jose G. de S. Aguiar (Campinas, Brazil)
2010 Nov. 07.30 UT: m1=6.5, Dia.=10′, DC=2; 20×60 B; Willian Souza (Sao Paulo, Brazil)
2010 Nov. 07.29 UT: m1=6.7, Dia.=8′, DC=3; 20×80 B; Alexandre Amorim (Florianopolis, Brazil)
2010 Nov. 07.25 UT: m1=5.5, Dia.=9’, DC=2, Cola: No visible; 20cm SCT (32x); Alberto Anunziato (Oro Verde, Argentina) [Mét. Sidgwick, Cat. Tycho II]
2010 Nov. 07.187 UT: m1=6.0, Dia.=20′, DC=4/; 7×50 B; Marco Goiato (Araçatuba, Brasil)
2010 Nov. 05.29 UT: m1=6.8, Dia.=7′, DC=3; 20×80 B; Alexandre Amorim (Florianopolis, Brazil)
2010 Nov. 04.28 UT: m1=6.7:, Dia.=8′; 20×80 B; Alexandre Amorim (Florianopolis, Brazil)
2010 Nov. 04.25 UT: m1=6.3, Dia.=15′, DC=2; 20×60 B; Willian Souza (Sao Paulo, Brazil)
2010 Nov. 04.14 UT: m1=4.8, Dia.=45′, DC=4; simple vista; Juan José González (Alto del Castro – Aralla, alt. 1720 m., León,España) [En 20 cm SCT (77x): m2=11.8 (Tycho-2); ancha cola de polvo de 0.2º en PA 290º, embebida en la coma. Cielo muy claro de montaña]
2010 Nov. 03.28 UT: m1=6.3, Dia.=10′, DC=3; 10×50 B; Alexandre Amorim (Florianopolis, Brazil)
2010 Nov. 03.23 TU m1=5.5, Dia.=14′, DC=4; 25cm L f/4 (45x); Gonzalo Vargas B (Cochabamba, Bolivia) [Método Bobrovnikoff; Estrellas ref.: GSC 753 2754 (5.12) y GSC 7492 885 (5.75); Interferencia de luz lunar:no; Presencia de nubosidad:no; Polución lumínica:si; Altura sobre el horizonte:30grados; Visible a simple vista:no; Magnitud a simple vista:no; MALE a simple vista:5; MALE instrumental:12]
2010 Nov. 03.167 UT: m1=5.6, Dia.=30′, DC=2/; 7×50 B; Marco Goiato (Araçatuba, Brasil)
2010 Nov. 02.70 UT: m1=5.6, Dia.=20’, DC=3; 7×50 B; Chris Wyatt (Walcha, NSW, Australia) [Coma appears elongated to the East and West slightly. Not visible naked eye, central condensation gradually intensifies to centre. Comp Star= TYC 759-2861-1; Method= S; Cat= TJ]
2010 Nov. 02.31UT: m1=6.0, Dia.=20´, DC=4, Cola: no visible; 25cm L (48x); Salvador Aguirre (Hermosillo, Sonora, Mexico)
2010 Nov. 02.28 UT: m1=6.0, Dia.=15′, DC=1/; 10×50 B; Alexandre Amorim (Florianopolis, Brazil)
2010 Nov. 02.25 UT: m1=7.1, Dia.=12′, DC=2; 7cm R (11x); Isbel González (Guayos, Cuba) [Método Beyer]
2010 Nov. 01.23 UT: m1=5.9, Dia.=12′, DC=0; 10×50 B; Alexandre Amorim (Florianopolis, Brazil)
2010 Nov. 01.06 UT: m1=5.5, Dia.=20′, DC=2; Naked eye; Vyacheslav Ivanov (observation obtain in 70 km from Antalya, Turkey)
2010 Oct. 31.19 UT: m1=5.9, Dia.=11′, DC=0; 10×50 B; Alexandre Amorim (Florianopolis, Brazil)
2010 Oct. 31.17 UT: m1=5.7, Dia.=15′, DC=4, 20×60 B; Willian Souza (Aguas de Lindoia, Brazil)
2010 Oct. 30.30 UT: m1=5.7; 8×30 B; Jose G. de S. Aguiar (Campinas, Brazil)
2010 Oct. 30.29 UT: m1=6.0, Dia.=15′, DC=2; 20×60 B; Willian Souza (Sao Paulo, Brazil)
2010 Out. 30.146 UT: m1=5.3, Dia.=25′, DC=2/; 7X50 B; Marco Goiato (Araçatuba, Brasil) [Nuvens]
2010 Out. 29.125 UT: m1=5.4, Dia.=20′, DC=2; 7X50 B; Marco Goiato (Araçatuba, Brasil) [Luar]
2010 Oct. 27.29 UT: m1=6.3, Dia.=5′, DC=4; 20×80 B; Alexandre Amorim (Florianopolis, Brazil) [moonlight]
2010 Oct. 26.29 UT: m1=6.1, Dia.=8′, DC=3; 20×80 B; Alexandre Amorim (Florianopolis, Brazil) [moonlight]
2010 Oct. 24.30 UT: m1=6.5, Dia.=7′, DC=4; 20×80 B; Alexandre Amorim (Florianopolis,Brazil) [moonlight]
2010 Out. 21.360 UT: m1=4.8, Dia.=40′, DC=2; 8X25 B; Marco Goiato (Araçatuba, Brasil) [Crepúsculo astronômico]
2010 Out. 21.354 UT: m1=4.9, Dia.=40′, DC=3/; 7X50 B; Marco Goiato (Araçatuba, Brasil) [Crepúsculo astronômico]
2010 Oct. 21.31 UT: m1=5.0, Dia.=30′, DC=2; 7×50 B; Willian Souza (Sao Paulo, Brazil)
2010 Oct. 21.28 UT: m1=5.3; 8×30 B; Jose G. de S. Aguiar (Campinas, Brazil)
2010 Oct. 20.19 UT: m1=4.7, Dia.=45′, DC=4; monocular 4×30; Juan Jose Gonzalez (Alto del Castro – Aralla, alt. 1720 m., León, España) [La proximidad a una estrella de mag. 5.5 (TK) no permitió una adecuada estimación de magnitud a simple vista. En 7x50B: coma de 30′, DC=5. Cielo muy claro de montaña]
2010 Out. 19.353 UT: m1=6.5, Dia.=-‘, DC=-; 8X30 B; Jorge Fidel Cubiles (La Habana, Cuba)
2010 Out. 19.344 UT: m1=4.9, Dia.=40′, DC=2; 8X25 B; Marco Goiato (Araçatuba, Brasil)
2010 Out. 19.333 UT: m1=5.0, Dia.=40′, DC=3; 7X50 B; Marco Goiato (Araçatuba, Brasil)
2010 Oct. 18.72 UT: m1=5.9, Dia.=24′; 4×30 B; David A. J. Seargent (Cowra, NSW, Australia) [Somewhat enhanced with Swan Band filter. Small central condensation in 15×80 binoculars] Intermittently glimpsed with naked eye using averted vision.
2010 Oct. 18.10 UT: m1=4.6, Dia.=50′, DC=3; simple vista; Juan José González (Alto del Castro – Aralla, alt. 1720 m., León, España) [En 7x50B: coma de 35′, DC=5. En 20 cm SCT (77x): ancha cola de polvo de 0.1º en PA 250º, embebida en la coma. Cielo muy claro de montaña]
2010 Oct. 16.92 UT: m1=4.8, Dia.=40′, DC=4; 7×50 B; Toni Scarmato (Calabria, Italia) [I saw the comet with naked eye but because close to a star of 5.6 mag I used my 7×50 to make an estimation.]
2010 Oct. 15.00 UT: m1=4.7, Dia.=60′, DC=2; simple vista; Juan José González (Aralla, alt. 1440 m., León, España) [En monocular 4×30: m1=4.8. En 7x50B: coma de 35′, DC=4. Cielo muy claro de montaña]
2010 Out. 14.125 UT: m1=5.0, Dia.=40′, DC=2, 8X25 B; Marco Goiato (Maceió, Brasil)
2010 Oct. 13.93 UT: m1=5.0, Dia.=50′, DC=3/; monocular 4×30; Juan José González (Pandorado, alt. 1720 m., León, España) [Coma involucrada con dos estrellas de mag 6.8 (TK). En 20 cm SCT (77x): cola de polvo de 0.2º en AP 250º]
2010 Oct. 11.11 UT: m1=5.0, Dia.=30′, DC=2; 10×50 B; Jorge Solano (Paseo Santaluz, San José Pinula, Guatemala) [Cielo mayormente despejado, no suficiente para captarlo a simple vista]
2010 Oct. 10.75 UT: m1=5.8, Dia.=23′, DC=3; 20×80 B; Artyom Novichonok (Kondopoga, Russia)
2010 Oct. 10.195UT: m1=6.0, Dia.=18´, DC=4, Cola: no visible; 15cm SCT (37x); Salvador Aguirre (Hermosillo, Sonora, Mexico)
2010 Oct. 08.84 UT: m1=6.3, Dia.=12′, DC=4; 20×50 B; Alfons Diepvens (Balen Belgium)
2010 Oct. 08.78 UT: m1=6.0, Dia.=30′, DC=3; 25 cm reflector (60x); Vyacheslav Ivanov (Peschanka, Russia)
2010 Oct. 07.89 UT: m1=6.3, Dia.=12′, DC=4; 20×50 B; Alfons Diepvens (Balen Belgium)
2010 Oct. 07.89 UT: m1=5.1, Dia.=50′, DC=2/; monocular 4×30; Juan José González (Les Bedules – Ponga, alt. 1080 m., Asturias, España) [En 7x50B: m1=6.0, Dia.=25′. Varias estrellas en la coma, siendo la más brillante KK Persei ( variable 6.6 – 7.9 ). Cielo muy claro de montaña]
2010 Oct. 07.87 UT: m1=5.8, Dia.=35′, DC=5; 7×50 B; Toni Scarmato (Calabria, Italia) [Diffuse the outer side of the coma but with a clear central condensation. In 20×90 it is possible to detect the motion of the comet in a few minutes and the coma is clearly asimmetric. No tail visible]
2010 Oct. 07.80 UT: m1=6.1, Dia.=27′, DC=3; 20×80 B; Artyom Novichonok (Konchezero, Russia)
2010 Oct. 07.74 UT: m1=8.6 ccd, Dia.=4.1′, DC=6; 25cm L +ccd +Rc filter; Toni Scarmato (Calabria, Italia)
2010 Oct. 07.13 UT: m1=6.5, Dia.=16´, DC=3, Cola: no visible; 15cm SCT (37x); Salvador Aguirre (Hermosillo, Sonora, Mexico)
2010 Oct. 06.84 UT: m1=6.6, Dia.=26′, DC=2; 20×80 B; Artyom Novichonok (Konchezero, Russia)
2010 Out. 06.146 UT: m1=6.2:, Dia.=20′, DC=2; 20X100 B; Marco Goiato (Araçatuba, Brasil) [altitude do cometa= 11º, poluição luminosa]
2010 Oct. 05.92 UT: m1=7.1, Dia.=25′, DC=2; 7×50 B; Artyom Novichonok (Sopoha, Russia)
2010 Oct. 05.92 UT: m1=5.9, Dia.=35′, DC=3, no cola; 11×80 B; Carlos Labordena (Castellón, España) [Aspecto ovalado]
2010 Oct. 05.17 UT: m1=6.0, Dia.=20′, DC=1; 10×50 B; Jorge Solano (Paseo Santaluz, San José Pinula, Guatemala) [Cielo mayormente despejado pero con leve bruma]
2010 Oct. 04.83 UT: m1=5.3, Dia.=45′, DC=2; simple vista; Juan José González (Pandorado, alt. 1190 m., León, España) [En monocular 4×30: m1=5.2. Observación realizada en mejores condiciones, desde una localidad de montaña más elevada, proporcionando un mucho mayor diámetro de coma y una m1 más brillante respecto a mi estimación previa de Oct. 2.86]
2010 Oct. 04.77 UT: m1=7.2, Dia.=21′, DC=2; 7×50 B; Artyom Novichonok (Kondopoga, Russia)
2010 Oct. 02.93 UT: m1=7.0, Dia.=16′, DC=2, no cola; 11×80 B; Carlos Labordena (Castellón, España)
2010 Oct. 02.86 UT: m1=6.4, Dia.=25′, DC=2; 4×30 monocular; Juan José González (Collado de Hoz, alt. 637 m., Cantabria, España) [En 7x50B: m1=6.6. En 25x100B: Varias estrellas de mag. 9 en la coma, siendo la más brillante 9.1 (TK). Cielo muy claro de montaña]
2010 Oct. 02.84 UT: m1=9.1 ccd, Dia.=3.6′, DC 6; 25cm L +ccd +Rc filter; Toni Scarmato (Calabria, Italia)
2010 Sep. 30.80 UT: m1=7.3, Dia.=25′, DC 4; 7×50 B; Toni Scarmato (Calabria, Italia) [Coma very diffuse. Seem visible a central condensation well condensed estimed 8.5 mag.]
2010 Sep. 29.83 UT: m1=7.5, Dia.=20′, DC 2; 7×50 B; Toni Scarmato (Calabria, Italia)
2010 Sep. 29.78 UT: m1=9.3 ccd, Dia.=3.4′, DC=6; 25cm L +ccd +Rc filter; Toni Scarmato (Calabria, Italia)
2010 Sep. 28.83 UT: m1=7.2, Dia.=18′, DC=2; 10×50 B; Juan José González (Puerto de la Magdalena, alt. 1441 m., León, España) [En 25x100B: m1=7.6. Cielo muy claro de montaña]
2010 Sep. 28.51 UT: m1=9.3, Dia.=7′, DC=1/2; 25cm L f:5 (39x); Chris Wyatt (Walcha, NSW, Australia) [Comet was 4 degrees above horizon at the time of observation, dark sky, clear horizon, coma diffuse, no tail. Not corrected for atmospheric extinction. Comp Star= TYC 3653-742-1; Method= S; Cat= TJ]
2010 Sep. 27.82 UT: m1=7.3, Dia.=13′, DC=2; 10×50 B; Juan José González (Grandota, alt. 470 m., Asturias, España) [En 25x100B: m1=7.7. Localidad rural, cielo muy claro]
2010 Sep. 26.80 UT: m1=8.2, Dia.=8′, DC=3, no cola; 11×80 B; Carlos Labordena (Castellón, España)
2010 Sep. 20.16 UT: m1=8.1, Dia.=15′, DC=2/; 10×50 B; Juan José González (Aralla, alt. 1440 m., León, España) [En 25x100B: m1=8.4]
2010 Sep. 19.10 UT: m1=12.4 ccd, Dia.=1.0′, DC=7/; 41cm L f/3.8 +CCD; Sergey Shurpakov (Belarus)
2010 Sep. 15.87 UT: m1=8.3, Dia.=12′, DC=3; 7×50 B; Toni Scarmato (Calabria, Italia)
2010 Sep. 15.00 UT: m1=8.5, Dia.=15′, DC=2; 10×50 B; Juan José González (Aralla, alt. 1440 m., León, España) [En 25x100B: m1=8.8]
2010 Sep. 14.95 UT: m1=10.0, Dia.=8′, DC=3; 15cm L; Ilya Los’ (Saratov, Russia)
2010 Sep. 14.93 UT: m1=12.5 ccd, Dia.=0.92′, DC=7/, tail 1.2′ in PA 193 deg.; 41cm L f/3.8 +CCD; Sergey Shurpakov (Belarus)
2010 Sep. 14.92 UT: m1=10.1: ccd, Dia.=7.3′; 11cm L +CCD; Artyom Novichonok (Kondopoga, Russia) & Evgeny Plyaschenko (Petropavlovsk, Kazakhstan )
2010 Sep. 14.81 UT: m1=9.7, Dia.=6′, DC=d3; 25.4cm L; Vyacheslav Ivanov (Peschanka, Russia)
2010 Sep. 13.82 UT: m1=10.0, Dia.=5′, DC=d3; 20.0cm L; Vyacheslav Ivanov (Peschanka, Russia)
2010 Sep. 13.78 UT: m1=11.0 ccd, Dia.=3.0′, DC 6; 25cm L +ccd +Rc filter; Toni Scarmato (Calabria, Italia) [I saw the comet visually in my 20×90 binoculars, diffuse with a coma large about 8′, no central condensation visible, no tail visible, magnitude estimation no precise 9.0]
2010 Set. 13.125 UT: m1=9.7, Dia.=4′, DC=3; 22cm L f:6.5 (160x); Marco Goiato (Araçatuba, Brasil)
2010 Set. 12.167 UT: m1=9.7, Dia.=4′, DC=3, 22cm L f:6.5 (160x); Marco Goiato (Araçatuba, Brasil);
2010 Sep. 11.95 UT: m1=9.8, Dia.=4′, DC=3; 15cm L; Ilya Los’ (Saratov, Russia)
2010 Sep. 10.97 UT: m1= 9.1, Dia.=4′, DC=3, no cola; 11×80 B; Carlos Labordena (Castellón, España)
2010 Sep. 10.82 UT: m1=10.0, Dia.=4′, DC=d3; 25.4cm L; Vyacheslav Ivanov (Saratov, Russia)
2010 Sep. 10.34 UT: m1=9.5: ccd, Dia.=6.9′; 9cm L +CCD; Artyom Novichonok (Kondopoga, Russia) & Oleg Sankin (Moscow, Russia)
2010 Set. 10.125 UT: m1=10.3:, Dia.=2′, DC=4, 22cm L f:6.5 (160x); Marco Goiato (Araçatuba, Brasil)
2010 Sep. 10.05 UT: m1=9.3, Dia.=8′, DC=3; 25×100 B; Juan José González (Alto del Castro – Aralla, alt. 1720 m., León, España) [En 20 cm SCT (77x): m1=9.5]
2010 Sep. 09.92 UT: m1=9.9, Dia.=6.2′, DC=3; 13cm L; Artyom Novichonok ( konchezero, Russia )
2010 Sep. 09.10 UT: m1=10.0, Dia.=0′.5; 18cm L (57x); Alexandre Amorim (Florianopolis, Brazil)
2010 Sep. 08.94 UT: m1=10.0, Dia.=5.9′, DC=3; 13 cm reflector; Artyom Novichonok ( Konchezero, Russia )
2010 Sep. 07.55 UT: m1=10.8, Dia.= 11’, DC=2/3; 25cm L f:5 (39x); Chris Wyatt (Walcha, NSW, Australia) [No tail. Comp Star= TYC 3224-1968-1; Method= S; Cat= TJ]
2010 Sep. 06.76 UT: m1=11.1 ccd, Dia.=3.0′, DC 6; 25cm L +ccd +Rc filter; Toni Scarmato (Calabria, Italia)
2010 Sep. 06.50 UT: m1=10.2, Dia.= 7.7’, DC=2/3; 25cm L f:5 (39x); Chris Wyatt (Walcha, NSW, Australia) [Coma large and diffuse, slightly concentrated condensation using averted vision, 8 degrees above local horizon. Comp Star= TYC 3219-1183-1; Method= S; Cat= TJ]
2010 Sep. 04.86 UT: m1=9.8, Dia.=6′, DC=3; 25×100 B; Juan José González (Alto del Castro – Aralla, alt. 1720 m., León, España) [En 20 cm SCT (77x): m1=10.1]
2010 Sep. 04.77 UT: m1=11.2 ccd, Dia.=3.0′, DC 6; 25cm L +ccd +Rc filter; Toni Scarmato (Calabria, Italia)
2010 Sep. 03.85 UT: m1= 10.4, Dia.=4′, DC=4, no cola; 23.5cm SCT(67x); Carlos Labordena (Castellón, España)
2010 Sep. 03.04 UT: m1=10.5, Dia.=5.9′, DC=5; 22cm L + CCD; Artyom Novichonok (Kondopoga, Russia) & Victor Voropaev (Moscow, Russia)
2010 Sep. 02.96 UT: m1=10.4, Dia.=2.8′, DC=5; 22cm L + CCD; Artyom Novichonok (Kondopoga, Russia) & Victor Voropaev (Moscow, Russia)
2010 Sep. 01.79 UT: m1=10.8 ccd, Dia.=2.5′, DC 7; 25cm L +ccd +Rc filter; Toni Scarmato (Calabria, Italia)
2010 Aug. 31.95 UT: m1=11.5, Dia.=2.3′; 22cm L + CCD; Artyom Novichonok (Kondopoga, Russia) & Victor Voropaev (Moscow, Russia)
2010 Aug. 30.92 UT: m1=11.3, Dia.=2.9′; 11.4cm L + CCD; Artyom Novichonok (Kondopoga, Russia) & Evgeny Plyaschenko (Petropavlovsk, Kazakhstan)
2010 Aug. 29.82 UT: m1=11.6 ccd, Dia.=2.1′, DC=7; 25cm L +ccd +Rc filter; Toni Scarmato (Calabria, Italia)
2010 Aug. 27.77 UT: m1=11.8 ccd, Dia.=2.1′, DC 7; 25cm L +ccd +Rc filter; Toni Scarmato (Calabria, Italia)
2010 Aug. 26.79 UT: m1=12.8 ccd, Dia.=1.5′, DC=6; 25cm L +ccd +Rc filter; Toni Scarmato (Calabria, Italia) [Haze and moonlight]
2010 Aug. 25.80 UT: m1=12.3 ccd, Dia.=1.5′, DC=6; 25cm L +ccd +Rc filter; Toni Scarmato (Calabria, Italia)
2010 Aug. 22.83 UT: m1=12.8 ccd, Dia.=0.8′, DC=6; 25cm L +ccd +Rc filter; Toni Scarmato (Calabria, Italia)
2010 Aug. 20.94 UT: m1=13.2, Dia.=0.8′, DC=5; 25.4cm L (203x); Artyom Novichonok (Sheltozero, Russia)
2010 Ago. 20.18 UT: m1=12.3, Dia.=1.3′, DC=5/; 20cm SCT (133x); Juan José González (Pandorado, alt. 1190 m., León, España)
2010 Aug. 18.88 UT: m1=13.3, Dia.=0.8′, DC=3; 25.4cm L (203x); Alexander Smirnov (Sheltozero, Russia)
2010 Aug. 16.88 UT: m1=12.8, Dia.=1.2′, DC=4; 61.5cm L (203x); Artyom Novichonok (Sheltozero, Russia)
2010 Aug. 15.90 UT: m1=13.0, Dia.=0.7′, DC=5; 25.4cm L (203x); Artyom Novichonok (Sheltozero, Russia)
2010 Aug. 13.85 UT: m1=14.0 ccd, Dia.=0.8′, DC=6; 25cm L +ccd +Rc filter; Toni Scarmato (Calabria, Italia)
2010 Aug. 11.90 UT: m1=14.1 ccd, Dia.=0.8′, DC=5; 25cm L +ccd +Rc filter; Toni Scarmato (Calabria, Italia)
2010 Aug. 07.91 UT: m1=14.1 ccd, Dia=0.8′, DC=5; 25cmL +ccd +Rc filter; Toni Scarmato (Calabria, Italia)
2010 Aug. 07.57 UT: m1=13.4, Dia.=0.6′, DC=6; 40.0cm L f/4.5 (257x); Seiichi Yoshida (Gunma, Japan) [See it again since 1998. This comet will be very bright this autumn. I was surprised that it is already bright and visible, because few visual observations have been recently. Well condensed, not tiny]
2010 Ago. 06.96 UT: m1=13.2, Dia.=0.6′, DC=6; 20 cm SCT (133x); Juan José González (Alto del Castro – Aralla, alt. 1720 m., León, España) [Cielo muy claro de montaña. Estrellas de campo comprobadas en el DSS. Movimiento seguido durante 60 min. Estrellas de comparación de la secuencia Henden de Y Peg]
2010 Aug. 04.53 UT; m1=13.4, Dia.=0.7’, DC= 1; 25cm L f:5 (83x); Chris Wyatt (Walcha, NSW, Australia) [Coma small and diffuse, visible only in periods of good seeing using averted vision. Comp Star= GSC-2223-1928; Method= S; Cat= HS]
2010 Aug. 01.90 UT: m1=14.3 ccd, Dia.=0.6′, DC=5; 25cm L +ccd +Rc filter; Toni Scarmato (Calabria, Italia)
2010 Jul. 29.85 UT: m1=14.8 ccd, Dia.=0.6′, DC=3; 25cm L +ccd +Rc filter; Toni Scarmato (Calabria, Italia)
2010 Jul. 22.91 UT: m1=15.0 ccd, Dia.=0.4′, DC=4; 25cm L +ccd +Rc filter; Toni Scarmato (Calabria, Italia)
2010 Jul. 20.96 UT: m1=15.5 ccd, Dia.=0.4′, DC=4; 25cm L +ccd +Rc filter; Toni Scarmato (Calabria, Italia)
2010 Jul. 18.06 UT: m1=[14.5; 20 cm SCT (133x); Juan José González (Alto del Castro – Aralla, alt. 1720 m., León, España) [Cometa no observado en la posición de efemérides. Cielo muy claro de montaña]
2010 Jul. 13.01 UT: m1=16.4 ccd, Dia.=0.2′, DC=4; 25cm L +ccd +Rc filter; Toni Scarmato (Calabria, Italia)

94P/Russell (4 observaciones)
2010 Jun. 16.22 UT: m1=17.3 ccd, Dia.=0.2′; 35.5 cm reflector + CCD; Artyom Novichonok & Dimitry Chestnov ( remotely Mayhill, USA )
2010 Jun. 13.23 UT: m1=18.2 ccd, Dia.=0.25′, DC=8/; 36cm L f/3.8 +CCD; Sergey Shurpakov (Baran’, Belarus)
2010 May. 04.26 UT: m1=16.6 ccd, Dia.=0.3′, Tail=0.3′; 35.5 cm L +CCD; Artyom Novichonok & Dimitry Chestnov (remotely Mayhill, USA)
2010 Feb. 06.41 UT: m1=16.8 ccd, Dia.=0.25′, DC=8; 0.36-m f/3.8 reflector + CCD; Sergey Shurpakov (Baran’, Belarus)

88P/Howell (2 observaciones)
2010 Feb. 11.79 UT: m1=12.1, Dia.=90″, DC=3, no cola; 23.5cm SCT (94x); Carlos Labordena (Castellón, España)
2010 Feb. 02.79 UT: m1=12.0, Dia.=1.5′, DC=4; 20cm SCT (133x); Juan José González (Camposagrado, alt. 1135 m, León, España) [Luz zodiacal light. Altura sobre el horizonte: 15º]

81P/Wild 2 (152 observaciones)
2010 Sep. 10.43 UT: m1=13.7, Dia.=1.1′; 18 cm reflector + CCD; Artyom Novichonok & Dimitry Chestnov (remotely Moorook, S. Australia)
2010 Ago. 07.86 UT: m1=12.1, Dia.=1′, DC=3, no cola; 23.5cm SCT (138x); Carlos Labordena (Castellón, España)
2010 Ago. 06.90 UT: m1=12.2, Dia.=1.2′, DC=3; 20 cm SCT (100x); Juan José González (Alto del Castro – Aralla, alt. 1720 m., León, España)
2010 Aug. 04.36 UT: m1= 12.7, Dia= 5.1’, DC=3; 25cm L f:5 (39x); Chris Wyatt (Walcha, NSW, Australia) [no tail, coma small and diffuse with gradual brightening to centre. Comp Star= GSC-5592-0864; Method= S; Cat= HS]
2010 Jul. 31.958 UT: m1=12.6, Dia.=1.5′, DC=4; 22cm L f:6.5 (160x); Marco Goiato (Araçatuba, Brasil)
2010 Jul. 10.56 UT: m1=12.1, Dia.=2.4′; 15 cm refractor + CCD; Artyom Novichonok & Dimitry Chestnov ( remotely Moorook, S. Australia )
2010 Jul. 04.98 UT: m1=11.8, Dia.=2.5′, DC=3; 20 cm SCT (160x); Juan José González (Alto del Castro – Aralla, alt. 1720 m., León, España)
2010 Jul. 14.94 UT: m1=[12.0; 18cm L (160x); Alexandre Amorim (Florianopolis, Brazil)
2010 Jul. 11.948 UT: m1=12.2, Dia.=1.5′, DC=4; 22cm L f:6.5 (160x); Marco Goiato (Araçatuba, Brasil)
2010 Jul. 09.948 UT: m1=12.0, Dia.=2′, DC=3/ 22cm L f:6.5 (160x); Marco Goiato (Araçatuba, Brasil)
2010 Jul. 01.958 UT: m1=11.7, Dia.=2′, DC=4; 22cm L f:6.5 (160x); Marco Goiato (Araçatuba, Brasil)
2010 Jun. 17.84 UT: m1=11.6 ccd, Dia.=1.8′, DC=5; 25cm L +ccd +Rc filter; Toni Scarmato (Calabria, Italia)
2010 Jun. 16.021 UT: m1=11.4, Dia.=2.5′, DC=4; 22cm L f:6.5 (160x); Marco Goiato (Araçatuba, Brasil)
2010 Jun. 15.52 UT: m1=13.1 ccd, Dia.=4.5′, DC=6/; 15cm R f/7 +CCD; Sergey Shurpakov (Baran’, Belarus)
2010 Jun. 15.19 UT: m1=13.2 ccd, Dia.=3.0′, DC=7/, tail:18′ in PA:287 deg.; 36cm L f/3.8 +CCD; Sergey Shurpakov (Baran’, Belarus)
2010 Jun. 14.19 UT: m1=13.1 ccd, Dia.=3.2′, DC=7/, tail:16′ in PA:286 deg.; 36cm L f/3.8 +CCD; Sergey Shurpakov (Baran’, Belarus)
2010 Jun. 12.000 UT: m1=11.0, Dia.=3′, DC=4; 22cm L f:6.5 (160x); Marco Goiato (Araçatuba, Brasil)
2010 Jun. 11.90 UT: m1=10.9, Dia.=3′, DC=3, Cola= 5′; 23.5cm SCT (67x); Carlos Labordena (Castellón, España)
2010 Jun. 09.062 UT: m1=10.8, Dia.=3′, DC=4; 22cm L f:6.5 (160x); Marco Goiato (Araçatuba, Brasil)
2010 Jun. 07.83 UT: m1=11.2 ccd, Dia.=2.1′, DC=5; 25cm L +ccd +Rc filter; Toni Scarmato (Calabria, Italia)
2010 Jun. 06.98 UT: m1=11.0:;18cm L (57x); Alexandre Amorim (Florianopolis, Brazil)
2010 Jun. 06.01 UT: m1=11.0, Dia.=1′, DC=5; 18cm L (57x); Alexandre Amorim (Florianopolis, Brazil)
2010 Jun. 05.958 UT: m1=10.5, Dia.=4′, DC=4/; 22cm L f:6.5 (60x); Marco Goiato (Araçatuba, Brasil)
2010 Jun. 03.98 UT: m1=10.1, Dia.=4′, DC=3/; 20cm SCT (77x); Juan José González (Alto del Trichero – Soto y Amío, alt. 1190 m., León, España)
2010 Jun. 01.000 UT: m1=10.5, Dia.=4′, DC=4; 22cm L f:6.5 (60x); Marco Goiato (Araçatuba, Brasil)
2010 Maio 29.937 UT: m1=10.6, Dia.=3′, DC=4; 22cm L f:6.5 (160x); Marco Goiato (Araçatuba, Brasil)
2010 May. 22.07 UT: m1=9.7, Dia.=4.5′, DC=4/, Tail: 0.1 deg. in PA 300 deg.; 20cm SCT (77x); Juan José González (Alto del Castro – Aralla, alt. 1720 m., León, España)
2010 Maio 21.146 UT: m1=10.4, Dia.=3′, DC=4; 22cm L f:6.5 (60x); Marco Goiato (Araçatuba, Brasil)
2010 May. 20.00 UT: m1=10.2:; 20×80 B; Alexandre Amorim (Florianopolis, Brazil)
2010 May. 19.57 UT: m1=9.6; Dia.=6′; 25×100 B; David A. J. Seargent (Cowra, NSW, Australia)
2010 May. 18.52 UT: m1=9.7; 25×100 B; David A. J. Seargent (Cowra, NSW, Australia)
2010 Maio 17.083 UT: m1=10.2, Dia.=3′, DC=4/; 22cm L f:6.5 (60x); Marco Goiato (Araçatuba, Brasil)
2010 May. 17.00 UT: m1=9.6, Dia.=4.5′, DC=4/, Cola: 0.2º en AP 300º; 20cm SCT (77x); Juan José González (Cueto Rosales – Riello, alt. 1420 m., León, España)
2010 May. 16.17 UT: m1=10.0, Dia.=1′, DC=3; 18cm L (60x); Alexandre Amorim (Florianopolis, Brazil)
2010 May. 15.91 UT: m1=9.6, Dia.=4′, DC=4, Cola= 5′; 23.5cm SCT (67x); Carlos Labordena (Castellón, España)
2010 May. 15.51 UT: m1=9.7; 25×100 B; David A. J. Seargent (Cowra, NSW, Australia) [Approximate estimate as comet very near star]
2010 Maio 14.187 UT: m1=10.0, Dia.=4′, DC=4/; 22cm L f:6.5 (60x); Marco Goiato (Araçatuba, Brasil)
2010 May. 13.43 UT: m1=9.9, Dia.=7.7’, DC=6; 25cm L f:5 (39x); Chris Wyatt (Walcha, NSW, Australia) [Tail to West, 9’ in length, broad and faint. Coma extension to NE, 4.5’ in length although very faint, visible with averted vision, central condensation equivalent to mag 14 star. Comp Star= TYC 4981-124-1; Method= M; Cat= TJ]
2010 Maio 13.146 UT: m1=10.0, Dia.=4′, DC=4/; 22cm L f:6.5 (60x); Marco Goiato (Araçatuba, Brasil) [nebulosidade fina]
2010 May. 13.04 UT: m1=9.7, Dia.=2′, DC=4; 20×80 B; Alexandre Amorim (Florianopolis, Brazil)
2010 May. 12.51 UT: m1=9.6, Dia.=3′; 25×100 B; David A. J. Seargent (Cowra, NSW, Australia)
2010 May. 11.43 UT: m1=9.9, Dia.=7.7’, DC=6; 25cm L f:5 (39x); Chris Wyatt (Walcha, NSW, Australia) [Tail to West, 13’ in length, coma elongated to NE, background star in coma. Comp Star= TYC 4978-124-1; Method= M; Cat= TJ]
2010 May. 10.42 UT: m1=9.9, Dia.=6.4’, DC=6; 25cm L f:5 (39x); Chris Wyatt (Walcha, NSW, Australia) [Tail to West, 11’ in length, broad, slightly elongated to NE. Comp Star= TYC 4978-737-1; Method= M; Cat= TJ]
2010 May. 09.96 UT: m1=9.7, Dia.=2′, DC=4; 20×80 B; Alexandre Amorim (Florianopolis, Brazil)
2010 May. 09.89 UT: m1=10.2 ccd, Dia.=1.7′, DC=5; 25cm L +ccd +Rc filter; Toni Scarmato (Calabria, Italia)
2010 May. 09.49 UT: m1=9.9, Dia.=6.4’, DC=6; 25cm L f:5 (39x); Chris Wyatt (Walcha, NSW, Australia) [Tail to West, 13’ in length, slight elongation to NE. Comp Star= TYC 4978-737-1; Method= M; Cat= TJ]
2010 Maio 08.167 UT: m1=9.9, Dia.=5′, DC=5; 22cm L f:6.5 (60x); Marco Goiato (Araçatuba, Brasil)
2010 May. 07.55 UT: m1=9.6; 25×100 B; David A. J. Seargent (The Entrance, NSW, Australia)
2010 May. 07.50 UT: m1=9.6, Dia.=5.5’, DC=6; 25cm L f:5 (39x); Chris Wyatt (Walcha, NSW, Australia) [Tail to West, 15.5’ in length, broad, coma elongated to NE. Comp Star= TYC 4978-851-1; Method= M; Cat= TJ]
2010 May. 06.98 UT: m1=9.6, Dia.=3′, DC=4; 18cm L (45x); Alexandre Amorim (Florianopolis, Brazil)
2010 May. 06.43 UT: m1=9.9, Dia.=4.8’, DC=5/6; 25cm L f:5 (39x); Chris Wyatt (Walcha, NSW, Australia) [Tail to West, 11’ in length, background star in coma, coma elongated to NE. Comp Star= TYC 4978-737-1; Method= M; Cat= TJ]
2010 May. 06.183 UT: m1=10.0, Dia.=3´, DC=4/5, Cola: no visible; 15cm SCT (37x); Salvador Aguirre (Hermosillo, Sonora, Mexico)
2010 May. 05.96 UT: m1=9.4, Dia.=5′, DC=5, Cola: 0.2º en AP 300º; 20cm SCT (77x); Juan Jose Gonzalez (Pandorado, alt. 1190 m, Leon, España)
2010 May. 05.41 UT: m1=10.2, Dia.=5.1’, DC=6; 25cm L f:5 (39x); Chris Wyatt (Walcha, NSW, Australia) [Coma elongated to the West, and slightly elongated to NE (at x83), tail to West, broad and faint, 13’ in length. Comp Star= TYC 4978-1085-1; Method= M; Cat= TJ]
2010 May. 03.41 UT: m1=9.6, Dia.=6.4’, DC=6; 25cm L f:5 (39x); Chris Wyatt (Walcha, NSW, Australia) [Tail to the West, 15’ in length, and broad. Comp Star= TYC 4978-851-1; Method= M; Cat= TJ]
2010 Mai. 03.021 UT: m1=9.8, Dia.=4′, DC=4/; 22cm L f:6.5 (60x); Marco Goiato (Araçatuba, Brasil)
2010 May. 02.50 UT: m1=9.9, Dia.=6′, DC=6; 40.0cm L f/4.5 (36x); Seiichi Yoshida (Gunma, Japan)
2010 May. 02.36 UT: m1=9.6, Dia.=5.5’, DC=6; 25cm L f:5 (39x); Chris Wyatt (Walcha, NSW, Australia) [No tail, small central condensation, coma elongated to the West. Comp Star= TYC 4978-644-1; Method= S; Cat= TJ]
2010 May. 01.97 UT: m1=9.6, Dia.=2′, DC=3; 18cm L (45x); Alexandre Amorim (Florianopolis, Brazil)
2010 Mai. 01.968 UT: m1=9.8, Dia.=4.5′, DC=4/; 22cm L f:6.5 (60x); Marco Goiato (Araçatuba, Brasil) [Nuvens]
2010 May. 01.51 UT: m1=9.9, Dia.=5.5′, DC=7; 40.0cm L f/4.5 (36x); Seiichi Yoshida (Gunma, Japan)
2010 Apr. 30.95 UT: m1=10.9 ccd, Dia.=0.9′, DC=5; 25cm L +ccd +Rc filter; Toni Scarmato (Calabria, Italia)
2010 Abr. 30.937 UT: m1=9.8, Dia.=4′, DC=4/; 22cm L f:6.5 (60x); Marco Goiato (Araçatuba, Brasil) [Nuvens]
2010 Apr. 30.92 UT: m1=9.7:; 18cm L (45x); Alexandre Amorim (Florianopolis, Brazil) [nebulosity]
2010 Apr. 23.64 UT: m1=8.7, Dia.=5.5’, DC=6; 25cm L f:5 (39x); Chris Wyatt (Walcha, NSW, Australia) [Tail to the West, 4’ in length. Comp Star= TYC 4981-29-1; Method= S; Cat= TJ]
2010 Abr. 22.042 UT: m1=9.5, Dia.=6′, DC=4; 20X100 B; Marco Goiato (Araçatuba, Brasil)
2010 Abr. 22.031 UT: m1=9.7, Dia.=5′, DC=5; Cola=10 arcmin en AP=260 grados; 22cm L f:6.5 (60x); Marco Goiato (Araçatuba, Brasil)
2010 Apr. 22.57 UT: m1=8.7, Dia.=5.9’, DC=6; 25cm L f:5 (39x); Chris Wyatt (Walcha, NSW, Australia) [Tail to the West, short and faint in moonlight, approximately 4’ long, very small but discernable central condensation. Comp Star= TYC 4982-774-1; Method= S; Cat= TJ]
2010 Apr. 21.58 UT: m1=9.3; 25×100 B; David A. J. Seargent (The Entrance, NSW, Australia)
2010 Apr. 21.57 UT: m1=9.3, Dia.=2.5’, DC=6; 25cm L f:5 (39x); Chris Wyatt (Walcha, NSW, Australia) [Coma bright, stellar central condensation, tail to the West 6’ long, tail narrower than previous observations. Comp Star= TYC 4978-750-1; Method= M; Cat= TJ]
2010 Apr. 20.56 UT: m1=9.4, Dia.=3; 25×100 B; David A. J. Seargent (The Entrance, NSW, Australia)
2010 Apr. 20.41 UT: m1=9.5, Dia.=4.5’, DC=6; 25cm L f:5 (39x); Chris Wyatt (Walcha, NSW, Australia) [Tail to the West, 6.5’in long, moonlight affected. Comp Star= TYC 4979-721-1; Method= S; Cat= TJ]
2010 Abr. 19.104 UT: m1=9.5, Dia.=6′, DC=4; 20X100 B; Marco Goiato (Araçatuba, Brasil)
2010 Abr. 19.104 UT: m1=9.7, Dia.=5′, DC=5; Cola=7 arcmin en AP=250 grados; 22cm L f:6.5 (60x); Marco Goiato (Araçatuba, Brasil)
2010 Apr. 18.38 UT: m1=8.7, Dia.=5′, DC=4; 11×70 B; Alexandre Amorim (San Rafael, Argentina)
2010 Abr. 18.187 UT: m1=9.6, Dia.=6′, DC=4; 20X100 B; Marco Goiato (Araçatuba, Brasil)
2010 Abr. 18.177 UT: m1=9.7, Dia.=4.5′, DC=5; Cola=7 arcmin en AP=260 grados; 22cm L f:6.5 (60x); Marco Goiato (Araçatuba, Brasil)
2010 Apr. 17.17 UT: m1=8.4, Dia.=7′, DC=5; 11×70 B; Alexandre Amorim (San Rafael, Argentina) [elongated coma with 2’x4′ in PA 270 using 28-cm SCT f/10 87x]
2010 Abr. 17.09 UT: m1=9.3, Dia.=5′, DC=4/, Cola:0.3º en AP:300º; 20cm SCT (77x); Juan José González (La Cruz – Lieres, alt. 520 m, Asturias, España)
2010 Apr. 16.17 UT: m1=8.7, Dia.=5′, DC=5; 11×70 B; Alexandre Amorim (San Rafael,Argentina)
2010 Abr. 16.083 UT: m1=9.6, Dia.=5′, DC=4; 20X100 B; Marco Goiato (Araçatuba, Brasil) [Nuvens]
2010 Apr. 15.46 UT: m1=9.5, Dia.=6.4’, DC=6; 25cm L f:5 (39x); Chris Wyatt (Walcha, NSW, Australia) [Tail to the West, 25’ total length, with brighter fan 12’extending West from coma before fading out to 25’, coma also elongated slightly to NE (anti-tail) Comp Star= TYC 4982-1012-1; Method= M; Cat= TJ]
2010 Abr. 14.094 UT: m1=9.5, Dia.=6′, DC=4; 20X100 B; Marco Goiato (Araçatuba, Brasil) [Nuvens]
2010 Apr. 14.00 UT: m1=8.9, Dia.=4′, DC=4; 18cm L (45x); Alexandre Amorim (Florianopolis, Brazil)
2010 Apr. 13.75 UT: m1=9.2, Dia.=6.4’, DC=5; 25cm L f:5 (39x); Chris Wyatt (Walcha, NSW, Australia) [Tail to the West, 25’ long, faint, coma edges diffuse with bright small central condensation. Comp Star= TYC 4982-704-1; Method= S; Cat= TJ]
2010 Apr. 13.06 UT: m1=9.0, Dia.=3′, DC=6; 7.6cm L (75x); Alexandre Amorim (Florianopolis, Brazil)
2010 Apr. 12.94 UT: m1=9.1, Dia.=3.4′, DC=4; 13 cm reflector; Artyom Novichonok (Konchezero, Russia)
2010 Apr. 12.54 UT: m1=9.3, Dia.=4, DC=5, Tail=0.5 degrees, PA=290; 25×100 B; David A. J. Seargent (Cowra, NSW, Australia)
2010 Abr. 12.114 UT: m1=9.5, Dia.=6′, DC=4; 20X100 B; Marco Goiato (Araçatuba, Brasil)
2010 Abr. 12.104 UT: m1=9.6, Dia.=5′, DC=5, Cola=8 arcmin en AP=270 grados; 22cm L f:6.5 (36x); Marco Goiato (Araçatuba, Brasil)
2010 Apr. 12.05 UT: m1=9.1, Dia.=3′, DC=4; 18cm L (45x); Alexandre Amorim (Florianopolis, Brazil)
2010 Apr. 11.51 UT: m1=9.3, Dia.=3, DC=5, Tail=0.5 degrees, PA=290; 25.4cm L (71x); David A. J. Seargent (Cowra, NSW, Australia)
2010 Abr. 11.18 UT: m1=10.0, Dia.=3´, DC=5´, Cola: no visible; 15cm SCT (37x), Salvador Aguirre (Hermosillo, Sonora, Mexico)
2010 Abr. 11.01 UT: m1=9.6, Dia.=4′, DC=5, Cola=15′; 23.5cm SCT (67x); Carlos Labordena (Castellón, España)
2010 Abr. 11.01 UT: m1=9.3, Dia.=5′, DC=4, Cola=15′; 11×80 B; Carlos Labordena (Castellón, España)
2010 Apr. 10.71 UT: m1=9.5, Dia.=4’, DC=6; 20cm T f:10 (63x); Chris Wyatt (Walcha, NSW, Australia) [Coma elongated to the NW, moonlight affected visibility of tail which made it not visible. Comp Star= TYC 4982-1012-1; Method= S; Cat= TJ]
2010 Abr. 10.218 UT: m1=9.5, Dia.=6′, DC=4; 20X100 B; Marco Goiato (Araçatuba, Brasil)
2010 Abr. 10.208 UT: m1=9.7, Dia.=4.5′, DC=5; Cola=7 arcmin en AP=260 grados; 22cm L f:6.5 (60x); Marco Goiato (Araçatuba, Brasil)
2010 Abr. 10.15 UT: m1=9.2, Dia.=6′, DC=5/, Cola: 0.4º en AP 300º; 25×100 B; Juan José González (Cueto Rosales – Riello, alt. 1420 m., León, España) [En 20 cm SCT (77x): m1=9.5]
2010 Apr. 08.50 UT: m1=8.9, Dia.=4, Tail=0.3 degrees, PA=305; 25×100 B; David A. J. Seargent (Cowra, NSW, Australia)
2010 Abr. 08.083 UT: m1=9.6, Dia.=5′, DC=5, Cola=4 arcmin en AP=280 grados; 22cm L f:6.5 (60x); Marco Goiato (Araçatuba, Brasil)
2010 Abr. 07.125 UT: m1=9.5, Dia.=6′, DC=4; 20×100 B; Marco Goiato (Araçatuba, Brasil)
2010 Abr. 06.083 UT: m1=9.5, Dia.=5′, DC=4; 20×100 B; Marco Goiato (Araçatuba, Brasil)
2010 Apr. 05.46 UT: m1=9.1, Dia.=4, Tail=in 25.4L at 71X, broad tail of 0.7 degrees in PA=274; 25×100 B; David A. J. Seargent (Cowra, NSW, Australia)
2010 Abr. 05.02 UT: m1=9.4, Dia.=4.5′, DC=5, Cola: 0.5º en AP 290º; 20cm SCT (77x); Juan José González (Alto del Trichero – Soto y Amío, alt. 1190 m., León, España)
2010 Abr. 05.187 UT: m1=9.5, Dia.=5′, DC=4; 20×100 B; Marco Goiato (Araçatuba, Brasil) [Luar]
2010 Abr. 04.041 UT: m1=9.6, Dia.=4′, DC=4/; 22cm L f:6.5 (160x); Marco Goiato (Araçatuba, Brasil) [Nuvens]
2010 Apr. 03.99 UT: m1=9.8 ccd, Dia.=3′, DC=5; 25cm L +ccd +Rc filter; Toni Scarmato (Calabria, Italia)
2010 Apr. 03.92 UT: m1=9.2, Dia.=3.8′, DC=5; 13 cm reflector; Artyom Novichonok (Spasskaya Guba, Russia)
2010 Apr. 03.01 UT: m1=9.0, Dia.=3′, DC=4; 18cm L (45x); Alexandre Amorim (Florianopolis, Brasil) [moonlight]
2010 Mar. 25.69 UT: m1=8.9, Dia.=3’, DC=6; 25cm L f:5 (39x); Chris Wyatt (Walcha, NSW, Australia) [Tail to the West, 38.5’ in length using averted vision. Comp Star= TYC 4982-1269-1; Method= S; Cat= TJ]
2010 Mar. 23.70 UT: m1=9.6, Dia.=2.5’, DC=6; 25cm L f:5 (39x); Chris Wyatt (Walcha, NSW, Australia) [Tail to the West, 19’ in length, faint. Thin local fog making obs difficult. Comp Star= TYC 4982-1103-1; Method= S; Cat= TJ]
2010 Mar. 20.292 UT: m1=9.2, Dia.=6′, DC=4; 20X100 B; Marco Goiato (Araçatuba, Brasil)
2010 Mar. 19.95 UT: m1=9.8 ccd, Dia.=2.1′, DC=6; 25cm L +ccd +Rc filter; Toni Scarmato (Calabria, Italia)
2010 Mar. 19.51 UT: m1=9.3, Dia.=5.4’, DC=5/6; 20cm T, f:6 (39x); Chris Wyatt (Walcha, NSW, Australia) [Tail to West (PA 270), 38’ in length using averted vision. Comp Star= TYC 4982-184-1; Method= S; Cat= TJ]
2010 Mar. 19.146 UT: m1=9.2, Dia.=6′, DC=4; 20×100 B; Marco Goiato (Araçatuba, Brasil)
2010 Mar. 18.69 UT: m1=9.5, Dia.=5.3’, DC=5; 25cm L, f:5 (39x); Chris Wyatt (Walcha, NSW, Australia) [Broad tail in PA 270, 19’ in length using averted vision, 7’ visible direct, inner coma slightly elongated WNW to ESE. Comp Star= TYC 4892-238-1; Method= S; Cat= TJ]
2010 Mar. 18.05 UT: m1=9.2, Dia.=5′, DC=4; 18cm L (45x); Alexandre Amorim (Florianopolis, Brasil) [light pollution]
2010 Mar. 17.96 UT: m1=9.6 ccd, Dia.=2.8′, DC=7; 25cm L +ccd +Rc filter; Toni Scarmato (Calabria, Italia)
2010 Mar. 17.95 UT: m1=9.5, Dia.=5.4′, DC=5; 13 cm reflector; Artyom Novichonok (Vikshitsa fields, Russia)
2010 Mar. 17.125 UT: m1=9.2, Dia.=6′, DC=4; 20×100 B; Marco Goiato (Araçatuba, Brasil) [Nuvens]
2010 Mar. 16.70 UT: m1=9.4, Dia.= 5.1’, DC=6; 25cm L f:5 (39x); Chris Wyatt (Walcha, NSW, Australia) [Tail to West, 25’ long using averted vision, coma diffuse with small stellar central condensation. Comp Star= TYC 4891-1318-1; Method= S; Cat= TJ]
2010 Mar. 15.14 UT: m1=9.5, Dia.=4.5′, DC=5/, Cola: 0.3º en AP 290º; 20cm SCT (77x); Juan José González (Aralla, alt. 1440 m., León, España)
2010 Mar. 14.125 UT: m1=9.2, Dia.=6′, DC=4; 20×100 B; Marco Goiato (Araçatuba, Brasil)
2010 Mar. 14.01 UT: m1=9.7, Dia.=4′, DC=6, Cola=6′; 23.5cm SCT (67x); Carlos Labordena (Castellón, España)
2010 Mar. 13.312 UT: m1=9.2, Dia.=6′, DC=4; 20X100 B; Marco Goiato (Araçatuba, Brasil)
2010 Mar. 11.146 UT: m1=9.4, Dia.=4′, DC=5; 22cm L F:6.5 (60x); Marco Goiato (Araçatuba, Brasil) [muito próximo a estrela com m1: 10.23]
2010 Mar. 10.11 UT: m1=9.5, Dia.=4.5′, DC=5/, Cola:0.2º en AP:290º; 20cm SCT (77x); Juan José González (Alto del Trichero – Soto y Amío, alt. 1190 m., León, España)
2010 Mar. 10.02 UT: m1=9.5, Dia.=4.5′, DC=5; 13 cm reflector; Artyom Novichonok (Vikshitsa fields, Russia)
2010 Mar. 09.51 UT: m1=9.9, Dia.=5.5’, DC= 6; 25cm L f:5 (39x); Chris Wyatt (Walcha, NSW, Australia) [Tail to NW approx; 9’ in length, broad and faint. Comp Star= TYC 5554-564-1; Method= M; Cat= TJ]
2010 Mar. 09.166 UT: m1=9.4, Dia.=5′, DC=4/; 20X100 B; Marco Goiato (Araçatuba, Brasil)
2010 Mar. 08.50 UT: m1=9.6, Dia.=5.5’, DC= 6; 25cm L f:5 (39x); Chris Wyatt (Walcha, NSW, Australia) [Tail to NW, faint, 6.5’ in length. Comp Star= TYC 4891-894-1; Method= M; Cat= TJ]
2010 Mar. 08.12 UT: m1=9.3, Dia.=4′, DC=5; 18cm L (45x); Alexandre Amorim (Florianopolis, Brasil)
2010 Mar. 07.146 UT: m1=9.7, Dia.=3′, DC=5/; 22cm L F:6.5 (60x); Marco Goiato (Araçatuba, Brasil) [Luar]
2010 Feb. 23.58 UT: m1=9.5, Tail:0.2 deg. in PA:290 deg.; 25.4cm L (71x); David A. J. Seargent (Cowra, NSW, Australia)
2010 Fev. 23.187 UT: m1=9.7, Dia.=3′, DC=5/; 22cm L f:6.5 (60x); Marco Goiato (Araçatuba, Brasil) [Poluição atmosférica]
2010 Feb. 21.54 UT: m1=9.7, Dia.=4; 25×100 B; David A. J. Seargent (Cowra, NSW, Australia)
2010 Fev. 21.250 UT: m1=9.7, Dia.=3′, DC=5; 20X100B; Marco Goiato (Araçatuba, Brasil)
2010 Feb. 20.37 UT: m1=11.4 ccd, Dia.=3.2′, DC= -, Tail:14′ in PA:289 deg.; 0.36-m L f/3.8 + CCD; Sergey Shurpakov (Baran’, Belarus)
2010 Feb. 20.18 UT: m1=9.6, Dia.=3.5′, DC=5/, Cola: 0.2º en AP 300º; 20cm SCT (77x); Juan José González (Armada – Lena, alt. 700 m, Asturias, España)
2010 Feb. 19.62 UT: m1=9.6, Dia.=3′, DC=6; 20cm L (57x); Michael Mattiazzo (Castlemaine, Victoria) [First observation. Bright starlike nucleus with a hint of tail in PA 290]
2010 Feb. 17.93 UT: m1=10.5, Dia.=3′, DC=3; 13 cm reflector; Artyom Novichonok (Konchezero, Russia)
2010 Feb. 16.97 UT: m1=10.3, Dia.=3.4′, DC=3; 13 cm reflector; Artyom Novichonok (Konchezero, Russia)
2010 Feb. 12.69 UT: m1=10.3; Dia.=3’, DC=6; 25cm L f:5 (39x); Chris Wyatt (Walcha, NSW, Australia) [Coma elongated to NE, tail 19’ long in PA 270. Comp Star= TYC 4972-1332-1; Method= S; Cat= TJ
2010 Feb. 11.70 UT: m1=10.0; Dia.=3’, DC=6; 25cm L f:5 (39x); Chris Wyatt (Walcha, NSW, Australia) [Tail visible, 19’ in length, PA 293 degrees, coma elongated to NE. Comp Star= TYC 4972-685-1; Method= S; Cat= TJ
2010 Feb. 10.59 UT: m1=10.2; Dia.=2’, DC=6; 25cm L f:5 (39x); Chris Wyatt (Walcha, NSW, Australia) [Tail visible, 15’ in length in PA 293 degrees. Comp Star= TYC 4972-393-1; Method= S; Cat= TJ
2010 Feb. 10.15 UT: m1=9.6, Dia.=3′, DC=5, Cola= 5′; 23.5cm SCT (67x); Carlos Labordena (Castellón, España)
2010 Feb. 10.07 UT: m1=9.7, Dia.=3′, DC=5/, Tail:0.2 deg. in PA 290 deg.; 20cm SCT (77x); Juan José González (Caldas de Luna, alt. 1120 m, León, España)
2010 Fev. 07.281 UT: m1=10.1, Dia.=3′, DC=6; 22cm L f:6.5 (160x); Marco Goiato (Araçatuba, Brasil) [Luar]
2010 Fev. 06.208 UT: m1=10.0:, Dia.=2′, DC=4; 22cm L f:6.5 (160x); Marco Goiato (Araçatuba, Brasil) [Luar e nuvens]
2010 Jan. 22.69 UT: m1=10.0, Dia.=4.8’, DC= 4/5; 25cm L f:5 (39x); Chris Wyatt (Walcha, NSW, Australia) [Tail to the West, 13’ in length, coma extension to the North, central condensation bright. Comp Star= TYC 4953-774-1; Method= S; Cat= TJ]
2010 Ene. 13.09 UT: m1=9.7, Dia.=3.5′, DC=3/, Cola: 0.1º en AP 290º; 20cm SCT (77x); Juan José González (Grandota – Oviedo, alt. 430 m, España)

74P/Smirnova-Chernykh (3 observaciones)
2010 Jul. 10.56 UT: m1=16.7, Dia.=0.2′; 15 cm refractor + CCD; Artyom Novichonok & Dimitry Chestnov (remotely Moorook, S. Australia)
2010 Jun. 14.21 UT: m1=15.8 ccd, Dia.=0.31′, DC=7/, tail:2.3′ in PA:298 deg.; 36cm L f/3.8 +CCD; Sergey Shurpakov (Baran’, Belarus)
2010 Feb. 20.38 UT: m1=16.6 ccd, Dia.=0.28′, DC=8, Tail:2′ in PA:289 deg.; 0.36-m L f/3.8 + CCD; Sergey Shurpakov (Baran’, Belarus)

67P/Churyumov-Gerasimenko (1 observación)
2010 Feb. 20.38 UT: m1=18.4 ccd, Dia.=0.70′, DC=0/; 0.36-m L f/3.8 + CCD; Sergey Shurpakov (Baran’, Belarus)

65P/Gunn (33 observaciones)
2010 Nov. 08.43 UT: m1=14.7, Dia.=0.5’, DC=2; 25cm L f:5 (83x); Chris Wyatt (Walcha, NSW, Australia) [No tail, dim with small central condensation visible using averted vision in good seeing. Comp Star= GSC-6932-0121; Method= S; Cat= HS]
2010 Oct. 27.44 UT: m1=13.9, Dia.=1′, DC=0/1; 25cm L f:5 (83x); Chris Wyatt (Walcha, NSW, Australia) [Coma very diffuse, visible using averted vision, no tail. Comp Star= GSC-6934-0698; Method=S; Cat= HS]
2010 Out. 26.979 UT: m1=13.6:, Dia.=0.2′, DC=7; 22cm L f:6.5 (230x); Marco Goiato (Araçatuba, Brasil)
2010 Sep. 10.97 UT: m1=13.0:; 18cm L (160x); Alexandre Amorim (Florianopolis, Brazil) [ASAS]
2010 Sep. 09.94 UT: m1=13.0:, DC=8/; 18cm L (160x); Alexandre Amorim (Florianopolis, Brazil) [ASAS]
2010 Sep. 06.39 UT: m1=13.8, Dia.=0.5’, DC=2/3; 25cm L f:5 (83x); Chris Wyatt (Walcha, NSW, Australia) [Coma very small, averted vision, close to bright star. Comp Star= GSC-7460-1503; Method= S; Cat= HS]
2010 Sep. 02.37 UT: m1=13.9, Dia.=1.5’, DC=2; 25cm L f:5 (83x); Chris Wyatt (Walcha, NSW, Australia) [No tail, coma small and diffuse, close to bright stars. Comp Star= GSC-7460-1369; Method= S; Cat= HS]
2010 Ago. 07.93 UT: m1=12.3, Dia.=1′, DC=3, no cola; 23.5cm SCT (138x); Carlos Labordena (Castellón, España)
2010 Ago. 07.125 UT: m1=11.7, Dia.=1′, DC=4; 22cm L f:6.5 (160x); Marco Goiato (Araçatuba, Brasil)
2010 Ago. 06.98 UT: m1=11.7, Dia.=1.2′, DC=3/; 20 cm SCT (100x); Juan José González (Alto del Castro – Aralla, alt. 1720 m., León, España) [Altura: 14º]
2010 Aug. 06.97 UT: m1=11.5:; 18cm L (57x); Alexandre Amorim (Florianopolis, Brazil)
2010 Aug. 04.38 UT; m1= 12.2, Dia.=3’, DC=1/2; 25cm L f:5 (39x); Chris Wyatt (Walcha, NSW, Australia) [No tail, coma diffuse, bright star nearby. Comp Star= GSC-7462-0351; Method= S; Cat= HS]
2010 Jul. 18.208 UT: m1=11.5, Dia.=1′, DC=4; 22cm L f:6.5 (160x); Marco Goiato (Araçatuba, Brasil)
2010 Jul. 18.13 UT: m1=11.5, Dia.=1.5′, DC=4; 20 cm SCT (133x); Juan José González (Alto del Castro – Aralla, alt. 1720 m., León, España) [Altura: 15º]
2010 Jul. 17.59 UT: m1=11.8, Dia.=3′; 25.4cm L (71x); David A. J. Seargent (Cowra, NSW, Australia)
2010 Jul. 15.00 UT: m1=11.5:; 18cm L (160x); Alexandre Amorim (Florianopolis, Brazil)
2010 Jul. 14.14 UT: m1=11.5:; 18cm L (160x); Alexandre Amorim (Florianopolis, Brazil)
2010 Jul. 10.48 UT: m1=12.7, Dia.=2.5′; 15cm L + CCD; Artyom Novichonok (remotely Moorook, S. Australia)
2010 Jul. 10.07 UT: m1=11.5, Dia.=1.5′, DC=4; 20 cm SCT (100x); Juan José González (Alto del Castro – Aralla, alt. 1720 m., León, España) [Altura: 17º]
2010 Jul. 09.271 UT: m1=11.9:, Dia.=1′, DC=4; 22cm L f:6.5 (160x); Marco Goiato (Araçatuba, Brasil) [próximo a estrela com m1:12.1]
2010 Jul. 06.15 UT: m1=11.5, Dia.=1′, DC=6; 18cm L (160x); Alexandre Amorim (Florianopolis, Brazil)
2010 Jul. 05.30 UT: m1=11.5:, Dia.=0.5′, DC=6; 18cm L (160x); Alexandre Amorim (Florianopolis, Brazil)
2010 June 20.42 UT: m1=13.2 ccd, Dia.=1.6′, Tail=7′; 35.5 cm L +CCD; Artyom Novichonok & Dimitry Chestnov (remotely Mayhill, USA)
2010 Jun. 18.07 UT: m1=11.9, Dia.=1.2′, DC=4; 20 cm SCT (133x); Juan José González (Alto del Castro – Aralla, alt. 1720 m., León, España) [Altura: 13º]
2010 Jun. 12.312 UT: m1=12.6, Dia.=0.5′, DC=4; 22cm L f:6.5 (230x); Marco Goiato (Araçatuba, Brasil)
2010 Jun. 10.39 UT: m1=14.2 ccd, Dia.=0.56′, DC=7/, tail 5.6′ in PA:256 deg.; 36cm L f/3.8 +CCD; Sergey Shurpakov (Baran’, Belarus)
2010 May. 22.12 UT: m1=12.3, Dia.=1.2′, DC=3/; 20cm SCT (133x); Juan José González (Alto del Castro – Aralla, alt. 1720 m., León, España) [Altura: 14º]
2010 May. 11.79 UT: m1=13.3, Dia.=0.6’, DC=3; 25cm L f:5 (83x); Chris Wyatt (Walcha, NSW, Australia) [Close to bright star, no tail. Comp Star= GSC-6926-1107; Method= S; Cat= HS]
2010 May. 10.75 UT: m1=13.5, Dia.=0.6’, DC=3/4; 25cm L f:5 (83x); Chris Wyatt (Walcha, NSW, Australia) [No tail, glimpses of tight central condensation in small coma using averted vision. Comp Star= GSC-6926-1386; Method= S; Cat= HS]
2010 Apr. 22.75 UT: m1=14.4, Dia.=0.5’, DC=1/2; 25cm L f:5 (83x); Chris Wyatt (Walcha, NSW, Australia) [No tail, coma small and diffuse, bright star nearby, averted vision. Comp Star= GSC-6912-0469; Method= S; Cat= HS]
2010 Mar. 25.72 UT: m1=13.4, Dia.=0.7’, DC= 0/1; 25cm L f:5 (139x); Chris Wyatt (Walcha, NSW, Australia) [Coma very faint and diffuse using averted vision, no tail. Comp Star= GSC-6894-2556; Method= S; Cat= HS]
2010 Mar. 23.72 UT: m1=13.6, Dia.=0.6’, DC= 0/1; 25cm L f:5 (139x); Chris Wyatt (Walcha, NSW, Australia) [No tail, only visible using averted vision. Comp Star= GSC-6894-2630; Method= S; Cat= HS]
2010 Mar. 18.74 UT: m1=13.8; Dia.=0.75’, DC=1/2; 25cm L f:5 (139x); Chris Wyatt (Walcha, NSW, Australia) [No tail, very diffuse, visible using averted vision. Comp Star= GSC-6893-0637; Method= S; Cat= HS]

30P/Reinmuth (1 observación)
2010 Fev. 03.000 UT: m1=13.3, Dia.=0.5′, DC=6; 22cm L f:6.5 (230x); Marco Goiato (Araçatuba, Brasil)

29P/Schwassmann-Wachmann 1 (68 observaciones)
2010 Dec. 04.82 UT: m1=14.3, Dia.=0.5′, DC=4; 40cm L f:4 (144x); Seiichi Yoshida (Kita-karuizawa, Gunma, Japan)
2010 Jun. 11.89 UT: m1=11.9, Dia.=1.5′, DC=3, no cola; 23.5cm SCT (94x); Carlos Labordena (Castellón, España)
2010 Jun. 03.93 UT: m1=11.8, Dia.=1.8′, DC=2/; 20cm SCT (133x); Juan José González (Alto del Trichero – Soto y Amío, alt. 1190 m., León, España)
2010 May. 16.98 UT: m1=11.2, Dia.=2.5′, DC=2/; 20cm SCT (100x); Juan José González (Cueto Rosales – Riello, alt. 1420 m., León, España)
2010 May. 15.88 UT: m1=11.7, Dia.=2′, DC=3, no cola; 23.5cm SCT (94x); Carlos Labordena (Castellón, España)
2010 May. 11.42 UT: m1=12.4, Dia.=1.2’, DC=3; 25cm L f:5 (83x); Chris Wyatt (Walcha, NSW, Australia) [No tail, small central condensation, not stellar. Comp Star= GSC-0825-0587; Method= S; Cat= HS]
2010 May. 10.40 UT: m1=12.4, Dia.=2.4’, DC=3; 25cm L f:5 (83x); Chris Wyatt (Walcha, NSW, Australia) [No tail. Comp Star= GSC-0825-0908; Method= S; Cat= HS]
2010 May. 09.78 UT: m1=12.2 ccd, Dia.=1.1′; 25cm L +CCD +R_c filter; Toni Scarmato (Calabria, Italia)
2010 May. 09.47 UT: m1=12.3, Dia.=1.5’, DC=1; 25cm L f:5 (83x); Chris Wyatt (Walcha, NSW, Australia) [No tail. Comp Star= GSC-0825-0751; Method= S; Cat= HS]
2010 May. 07.49 UT: m1=12.4, Dia.=1.5’, DC=1; 25cm L f:5 (83x); Chris Wyatt (Walcha, NSW, Australia) [No tail, close to bright stars. Comp Star= GSC-0825-0908; Method= S; Cat= HS]
2010 May. 06.41 UT: m1=11.3, Dia.=1.5’, DC=1/2; 25cm L f:5 (83x); Chris Wyatt (Walcha, NSW, Australia) [No tail. Comp Star= TYC 825-880-1; Method= S; Cat= TJ]
2010 May. 05.93 UT: m1=11.2, Dia.=2.5′, DC=2/; 20cm SCT (100x); Juan Jose Gonzalez (Pandorado, alt. 1190 m, Leon, España) [Varias estrellas en la coma, la más brillante de mag. 13.5 (GSC)]
2010 May. 05.40 UT: m1=11.3, Dia.=2.2’, DC=2; 25cm L f:5 (83x); Chris Wyatt (Walcha, NSW, Australia) [No tail. Comp Star= GSC-0825-0677; Method= S; Cat= HS]
2010 May. 04.22 UT: m1=13.0 ccd, Dia.=1.4′; 35.5 cm L +CCD; Artyom Novichonok & Dimitry Chestnov (remotely Mayhill, USA)
2010 May. 03.46 UT: m1=11.3, Dia.=2.3′, DC=3; 40.0cm L f/4.5 (75x); Seiichi Yoshida (Gunma, Japan)
2010 May. 03.39 UT: m1=11.8, Dia.=1.2’, DC=2; 25cm L f:5 (83x); Chris Wyatt (Walcha, NSW, Australia) [No tail, evenly diffuse. Comp Star= GSC-0825-1181; Method= S; Cat= HS]
2010 May. 02.48 UT: m1=11.5, Dia.=2.2′, DC=3; 40.0cm L f/4.5 (75x); Seiichi Yoshida (Gunma, Japan)
2010 Mai. 01.937 UT: m1=12.0, Dia.=2′, DC=2; 22cm L f:6.5 (160x); Marco Goiato (Araçatuba, Brasil)
2010 May. 01.47 UT: m1=11.4, Dia.=2.2′, DC=3; 40.0cm L f/4.5 (75x); Seiichi Yoshida (Gunma, Japan)
2010 Apr. 20.40 UT: m1=11.9, Dia.=1’, DC=4/5; 25cm L, f:5 (83x); Chris Wyatt (Walcha, NSW, Australia) [Moonlight, coma small, diffuse edges with bright central condensation although not quite stellar, no tail. Comp Star= GSC-0825-0543; Method= S; Cat= HS]
2010 Abr. 18.979 UT: m1=12.3, Dia.=0.7′, DC=6/; 22cm L f:6.5 (160x); Marco Goiato (Araçatuba, Brasil)
2010 Abr. 17.00 UT: m1=11.7, Dia.=2.0′, DC=2; 20cm SCT (100x); Juan José González (La Cruz – Lieres, alt. 520 m, Asturias, España) [Nuevo outburst. Condensación central estelar con m2=12.8 (estrellas de comparación del campo Henden HS618 ). La coma de 2′ observada es un remanente del outburst previo]
2010 Abr. 16.958 UT: m1=12.5, Dia.=0.5′, DC=7/; 22cm L f:6.5 (160x); Marco Goiato (Araçatuba, Brasil) [novo outburst]
2010 Abr. 10.88 UT: m1=12.5, Dia.=1′, DC=2, no cola; 23.5cm SCT(138x); Carlos Labordena (Castellón, España)
2010 Abr. 10.000 UT: m1=12.4, Dia.=1.5′, DC=2; 22cm L f:6.5 (160x); Marco Goiato (Araçatuba, Brasil)
2010 Abr. 08.021 UT: m1=12.4, Dia.=1.5′, DC=2/; 22cm L f:6.5 (160x); Marco Goiato (Araçatuba, Brasil)
2010 Abr. 04.89 UT: m1=11.8, Dia.=2.5′, DC=1; 20cm SCT (100x); Juan José González (Alto del Trichero – Soto y Amío, alt. 1190 m., León, España)
2010 Mar. 19.86 UT: m1=11.8 ccd, Dia.=1.7′; 25cm L +ccd +Rc filter; Toni Scarmato (Calabria, Italia)
2010 Mar. 19.50 UT: m1=11.9, Dia.=5.4’, DC=1; 20cm T f:6 (39x); Chris Wyatt (Walcha, NSW, Australia) [No tail. Comp Star= GSC-0825-0404; Method= S; Cat= HS]
2010 Mar. 18.44 UT: m1=11.1, Dia.=6.4’, DC=1/2; 25cm L f:5 (39x); Chris Wyatt (Walcha, NSW, Australia) [No tail, coma appears circular, faint diffuse edge that gradually brightens toward the centre. Comp Star= TYC 825-736-1; Method= S; Cat= TJ]
2010 Mar. 17.79 UT: m1=13.1 ccd, Dia.=0.7′, DC=5; 25cm L +ccd +Rc filter; Toni Scarmato (Calabria, Italia)
2010 Mar. 17.41 UT: m1=11.4, Dia.=5.1’, DC=2; 25cm L f:5 (39x); Chris Wyatt (Walcha, NSW, Australia) [No tail, coma diffuse, close to bright star. Comp Star= TYC 826-901-1; Method= S; Cat= TJ]
2010 Mar. 15.45 UT: m1=11.8, Dia.=4’, DC=1; 25cm L f:5 (39x); Chris Wyatt (Walcha, NSW, Australia) [No tail, close to bright star, coma evenly diffuse. Comp Star= TYC 825-736-1; Method= S; Cat= TJ]
2010 Mar. 15.12 UT: m1=11.7, Dia.=1.5′, DC=2; 20cm SCT (133x); Juan José González (Aralla, alt. 1440 m., León, España)
2010 Mar. 13.979 UT: m1=11.5, Dia.=2′, DC=4; 22cm L f:6.5 (160x); Marco Goiato (Araçatuba, Brasil)
2010 Mar. 13.95 UT: m1=11.2, Dia.=2.5′, DC=3, no cola; 23.5cm SCT (94x); Carlos Labordena (Castellón, España)
2010 Mar. 11.125 UT: m1=11.2, Dia.=2′, DC=4; 22cm L f:6.5 (160x); Marco Goiato (Araçatuba, Brasil)
2010 Mar. 09.50 UT: m1=11.4, Dia.=5.5’, DC=1; 25cm L f:5 (39x); Chris Wyatt, Walcha (NSW, Australia) [No tail, coma diffuse. Comp Star= TYC 826-901-1; Method= S; Cat= TJ]
2010 Mar. 08.89 UT: m1=11.2, Dia.=2.5′, DC=2/; 20cm SCT (100x); Juan José González (Castañedo del Monte, Santo Adriano, alt. 640 m, Asturias, España)
2010 Mar. 08.47 UT: m1=11.4, Dia.=6.4’, DC=1; 25cm L f:5 (39x); Chris Wyatt Walcha, (NSW, Australia) [Coma very diffuse and circular, no tail. Comp Star= TYC 826-901-1; Method= S; Cat= TJ]
2010 Mar. 08.125 UT: m1=11.0, Dia.=2.5′, DC=4; 22cm L f:6.5 (160x); Marco Goiato (Araçatuba, Brasil)
2010 Mar. 07.000 UT: m1=11.0, Dia.=2.5′, DC=4; 22cm L f:6.5 (160x); Marco Goiato (Araçatuba, Brasil)
2010 Mar. 01.81 UT: m1=10.8, Dia.=1.5′, DC=5; 20 cm SCT (77x); Juan José González (Sierra de Fario, Sariego, alt. 660 m, Asturias, España) [Crepúsculo astronómico]
2010 Feb. 24.45 UT: m1=12.9 ccd, Dia.=2′, DC=6/; 0.41-m f/9 Ritchey-Chretien telescope + CCD; Sergey Shurpakov (Baran’, Belarus)
2010 Fev. 21.167 UT: m1=10.7, Dia.=2.5′, DC=4/; 22cm L f:6.5 (160x); Marco Goiato (Araçatuba, Brasil)
2010 Feb. 20.34 UT: m1=12.2 ccd, Dia.=2.2′, DC=6/; 0.36-m L f/3.8 + CCD; Sergey Shurpakov (Baran’, Belarus)
2010 Feb. 20.322 UT: m1=11.0 ccd, Dia.=2.3′; 35.5 cm L +CCD; Artyom Novichonok & Dimitry Chestnov (remotely Mayhill, USA)
2010 Feb. 19.93 UT: m1=[11.6; 13 cm reflector; Artyom Novichonok (Konchezero, Russia)
2010 Feb. 19.61 UT: m1=10.6, Dia.=1.5′, DC=5; 20cm L 57x); Michael Mattiazzo (Castlemaine, Victoria) [coma appears as a bright circular haze of high surface brightness]
2010 Feb. 17.80 UT: m1=11.0, Dia.=1.8′, DC=5; 13 cm reflector; Artyom Novichonok (Konchezero, Russia)
2010 Feb. 17.15 UT: m1=12.0, Dia.=1´, DC=5, Cola: no; 15 cm SCT (37x); Salvador Aguirre (Hermosillo, Sonora, Mexico)
2010 Feb. 16.85 UT: m1=10.7, Dia.=2.1′, DC=6; 13 cm reflector; Artyom Novichonok (Konchezero, Russia)
2010 Fev. 15.083 UT: m1=10.8, Dia.=2′, DC=6; 22cm L f:6.5 (60x); Marco Goiato (Araçatuba, Brasil)
2010 Feb. 14.18 UT: m1=10.9 ccd, Dia.=1.6′; 18 cm L +CCD; Artyom Novichonok & Dimitry Chestnov (remotely Mayhill, USA)
2010 Feb. 12.68 UT: m1=11.0, Dia.=1.1’, DC=4; 25cm L, f:5 (39x) [Chris Wyatt, Walcha, NSW, Australia] Coma small, no tail, central condensation not sharply defined. Comp Star= GSC-0824-0115; Method= S; Cat= HS
2010 Feb. 11.69 UT: m1=11.1, Dia.=0.8’, DC=6; 25cm L, f:5 (39x) [Chris Wyatt, Walcha, NSW, Australia] Coma small, more diffuse, small central condensation, no tail. Comp Star= TYC 824-626-1; Method= S; Cat= TJ
2010 Feb. 10.50 UT: m1=10.7, Dia.=0.7’, DC=7; 25cm L, f:5 (39x) [Chris Wyatt, Walcha, NSW, Australia] Coma very small, bright central condensation, very thin diffuse coma edge, no tail. Comp Star= GSC-0824-0930; Method= S; Cat= HS
2010 Feb. 10.16 UT: m1=10.8, Dia.=90″, DC=6, no cola; 23.5cm SCT (67x); Carlos Labordena (Castellón, España)
2010 Feb. 10.04 UT: m1=11.1, Dia.=1.2′, DC=7; 20cm SCT (133x); Juan José González (Caldas de Luna, alt. 1120 m, León, España ) [ Se percibe una evolución más simétrica de la coma visible que en previos estallidos típicos del 29P]
2010 Fev. 07.250 UT: m1=11.0, Dia.=1′, DC=7; 22cm L f:6.5 (160x); Marco Goiato (Araçatuba, Brasil) [Luar]
2010 Feb. 06.54 UT: m1=10.8, Dia.=0.5′, DC=8; 20cm L (57x); Michael Mattiazzo (Castlemaine, Victoria)
2010 Feb. 06.54 UT: m1=11.0 ccd, Dia.=0.7′; 18-cm L + CCD; Artyom Novichonok & D. Chestnov (remotely Moorook, Australia)
2010 Feb. 06.35 UT: m1=11.5 ccd, Dia.=1.14′, DC=8; 0.36-m f/3.8 reflector + CCD; Sergey Shurpakov (Baran’, Belarus)
2010 Feb. 06.16 UT: m1:11.5, Dia.=1´, DC=8, Cola: No; 15cm SCT (37x); Salvador Aguirre (Hermosillo, Sonora, Mexico)
2010 Fev. 06.125 UT: m1=11.3, Dia.=1′, DC=8; 22cm L f:6.5 (160x); Marco Goiato (Araçatuba, Brasil) [expansão da coma e discreta redução do grau de condensação]
2010 Fev. 04.062 UT: m1=11.5, Dia.=0.4′, DC=8/; 22cm L f:6.5 (160x); Marco Goiato (Araçatuba, Brasil) [aparência estelar com aumento de 60x]
2010 Jan. 25.76 UT: m1=13.2 ccd, Dia.=1.0′; 18cm reflector + CCD; Artyom Novichonok (remotely Moorook, Australia)
2010 Jan. 24.58 UT: m1=13.5 ccd, Dia.=0.8′; 18cm reflector + CCD; Artyom Novichonok (remotely Moorook, Australia)

10P/Tempel 2 (91 observaciones)
2010 Nov. 25.44 UT: m1=12.4, Dia.=3′, DC=1; 25cm L f:5 (39x); Chris Wyatt (Walcha, NSW, Australia) [No tail, coma diffuse, visible using averted vision. Comp Star= GSC-5275-1761; Method= S; Cat= HS]
2010 Dec. 04.43 UT: m1=12.8, Dia.=1.8′; 40cm L f:4 (144x); Seiichi Yoshida (Kita-karuizawa, Gunma, Japan)
2010 Dic. 04.06 UT: m1=11.1, Dia.=5′, DC=2, no cola; 20cm SC(50x); Carlos Labordena (Castellón, España)
2010 Nov. 28.83 UT: m1=10.7, Dia.=6′, DC=2; 20cm SCT (77x); Juan José González (Aralla, alt. 1440 m., León, España) [bajo Estrella de mag. 12.1 (Tycho-2) dentro de la coma]
2010 Nov. 25.44 UT: m1=12.4, Dia.=3′, DC=1; 25cm L f:5 (39x); Chris Wyatt (Walcha, NSW, Australia) [No tail, coma diffuse, visible using averted vision. Comp Star= GSC-5275-1761; Method= S; Cat= HS]
2010 Nov. 24.78 UT: m1=10.7, Dia.=7′, DC=2; 20cm SCT (77x); Juan José González (Aralla, alt. 1440 m., León, España)
2010 Nov. 12.125 UT: m1=11.1, Dia.=3′, DC=3, 22cm L f:6.5 (160x); Marco Goiato (Araçatuba, Brasil)
2010 Nov. 08.44 UT: m1=12.2, Dia.=5.5’, DC=2/3; 25cm L f:5 (39x); Chris Wyatt (Walcha, NSW, Australia) [Coma large, gradual concentration to centre, not condensed. Comp Star= GSC-5851-1163; Method= S; Cat= HS]
2010 Nov. 07.167 UT: m1=10.9, Dia.=3′, DC=3; 22cm L f:6.5 (160x); Marco Goiato (Araçatuba, Brasil)
2010 Nov. 03.042 UT: m1=10.6, Dia.=3′, DC=3; 22cm L f:6.5 (60x); Marco Goiato (Araçatuba, Brasil)
2010 Nov. 02.45 UT: m1=10.0, Dia.=7.7’, DC=3; 25cm L f:5 (39x); Chris Wyatt (Walcha, NSW, Australia) [Coma diffuse, elongated to NW, background star in coma. Comp Star= TYC 5851-321-1; Method= S; Cat= TJ]
2010 Out. 28.052 UT: m1=10.4, Dia.=4′, DC=4; 22cm L f:6.5 (160x); Marco Goiato (Araçatuba, Brasil)
2010 Oct. 27.43 UT: m1=11.6, Dia.=3.5′, DC=2; 25cm L f:5 (39x); Chris Wyatt (Walcha, NSW, Australia) [No tail, close to bright star, coma observed with averted vision Comp Star= GSC-5851-0988; Method=S; Cat= HS]
2010 Oct. 18.11 UT: m1=9.6, Dia.=5′, DC=3; 20cm SCT (77x); Juan José González (Alto del Castro – Aralla, alt. 1720 m., León, España)
2010 Oct. 14.00 UT: m1=9.7, Dia.=5′, DC=3; 20cm SCT (77x); Juan José González (Pandorado, alt. 1720 m., León, España)
2010 Oct. 13.00 UT: m1=10.4, Dia.=2′, DC=3; 18cm L (57x); Alexandre Amorim (Florianopolis, Brazil)
2010 Oct. 08.50 UT: m1=9.1, Dia.=8′; 25×100 B; David A. J. Seargent, Cowra, NSW, Australia)
2010 Out. 06.125 UT: m1=9.7, Dia.=7′, DC=4; 22cm L f:6.5 (60x); Marco Goiato (Araçatuba, Brasil)
2010 Oct. 05.46 UT: m1=9.0, Dia.=5′; 25×100 B; David A. J. Seargent, Cowra, NSW, Australia) [Somewhat enhanced with Swan Band filter]
2010 Oct. 01.99 UT: m1=8.9, Dia.=10′, DC=2/; 20×110 B; José Carvajal (Madrid, España)
2010 Sep. 28.47 UT; m1=10.2, Dia.=6.4′, DC=3; 25cm L f:5 (39x); Chris Wyatt (Walcha, NSW, Australia) [Coma elongated to the West, broad, slightly fan shaped. Bright inner coma with gradually fading outer coma.Comp Star= TYC 5854-810-1; Method= S; Cat= TJ]
2010 Sep. 20.17 UT: m1=8.5, Dia.=10′, DC=3/; 25×100 B; Juan José González (Aralla, alt. 1440 m., León, España)
2010 Sep. 18.93 UT: m1=8.8, Dia.=8′, DC=3, no cola; 11×80 B; Carlos Labordena (Castellón, España)
2010 Sep. 15.01 UT: m1=8.6, Dia.=10′, DC=3; 25×100 B; Juan José González (Aralla, alt. 1440 m., León, España)
2010 Set. 12.229 UT: m1=9.6, Dia.=6′, DC=4, 22cm L f:6.5 (60x); Marco Goiato (Araçatuba, Brasil);
2010 Sep. 11.36 UT: m1=9.6 ccd, Dia.=0.6′; 21cm L +CCD; Artyom Novichonok (remotely Mayhill, U.S.A.)
2010 Sep. 11.04 UT: m1=9.5, Dia.=5′, DC=3; no cola, 23.5cm SCT (67x); Carlos Labordena (Castellón, España)
2010 Sep. 10.11 UT: m1=10.0, Dia.=2′, DC=4; 20×80 B; Alexandre Amorim (Florianopolis, Brazil)
2010 Sep. 10.07 UT: m1=8.7, Dia.=8′, DC=3/; 25×100 B; Juan José González (Alto del Castro – Aralla, alt. 1720 m., León, España)
2010 Sep. 09.09 UT: m1=10.2, Dia.=1′, DC=4; 18cm L (57x); Alexandre Amorim (Florianopolis, Brazil)
2010 Sep. 07.55 UT: m1=8.4, Dia.=13.5’, DC= 3; 7×50 B; Chris Wyatt (Walcha, NSW, Australia) [No tail. Comp Star= TYC 5852-717-1; Method= S; Cat= TJ]
2010 Sep. 06.51 UT: m1=8.6, Dia.=16’, DC= 1/2; 7×50 B; Chris Wyatt (Walcha, NSW, Australia) [No tail, coma diffuse. Comp Star= TYC 5279-1145-1; Method= S; Cat= TJ]
2010 Sep. 05.12 UT: m1=10.0, Dia.=1′, DC=4; 18cm L (57x); Alexandre Amorim (Florianopolis, Brazil)
2010 Sep. 05.06 UT: m1=8.8, Dia.=7′, DC=4; 25×100 B; Juan José González (Alto del Castro – Aralla, alt. 1720 m., León, España)
2010 Sep. 03.99 UT: m1=9.2, Dia.=5′, DC=3, no cola; 23.5cm SCT(67x); Carlos Labordena (Castellón, España)
2010 Sep. 02.53 UT: m1=8.6, Dia.= 8’, DC= 2/3; 7×50 B; Chris Wyatt (Walcha, NSW, Australia) No tail. Comp Star= TYC 5855-1492-1; Method= S; Cat= TJ]
2010 Set. 02.145 UT: m1=9.4, Dia.=6′, DC=4; 22cm L f:6.5 (60x); Marco Goiato (Araçatuba, Brasil)
2010 Aug. 21.17 UT: m1=8.7, Dia.=4′, DC=4; 20×80 B; Alexandre Amorim (Florianopolis, Brazil) [moonlight]
2010 Ago. 20.16 UT: m1=8.7, Dia.=6′, DC=4; 20cm SCT (77x); Juan José González (Pandorado, alt. 1190 m., León, España) [Coma asimétrica]
2010 Aug. 18.36 UT: m1=8.4, Dia.=5′, DC=3; 20×80 B; Alexandre Amorim (Florianopolis, Brazil)
2010 Ago. 16.167 UT: m1=8.5, Dia.=7′, DC=4; 20×100 B; Marco Goiato (Araçatuba, Brasil)
2010 Aug. 12.53 UT: m1=8.8, Dia.=9′; 25×100 B; David A. J. Seargent (Cowra, NSW, Australia)
2010 Aug. 12.09 UT: m1=10.6 ccd, Dia.=3.1′, DC=6; 25cm L +ccd +Rc filter; Toni Scarmato (Calabria, Italia)
2010 Aug. 08.55 UT: m1=8.7; 25×100 B; David A. J. Seargent (The Entrance, NSW, Australia)
2010 Ago. 08.08 UT: m1=8.7, Dia.=6′, DC=4, no cola; 11×80 B; Carlos Labordena (Castellón, España)
2010 Aug. 07.74 UT: m1=8.7, Dia.=8.5′, DC=6; 40.0cm L f/4.5 (36x); Seiichi Yoshida (Gunma, Japan) [See it again since 1999. Now it is very bright, much brighter than my last observations in 1999! Very wide, but well condensed]
2010 Ago. 07.167 UT: m1=8.4, Dia.=8′, DC=4; 20×100 B; Marco Goiato (Araçatuba, Brasil)
2010 Ago. 07.05 UT: m1=8.6, Dia.=8′, DC=4; 8cm R f:6 (12x); José Carvajal (Madrid, España) [Coma is 35′ long and 25′ wide, elongated towards PA 110 deg.]
2010 Ago. 07.04 UT: m1=8.7, Dia.=8′, DC=4; 20 cm SCT (77x); Juan José González (Alto del Castro – Aralla, alt. 1720 m., León, España) [Coma asimétrica]
2010 Ago. 06.166 UT: m1=8.4, Dia.=8′, DC=4; 20×100 B; Marco Goiato (Araçatuba, Brasil)
2010 Aug. 04.54 UT: m1=8.7, Dia.=11’, DC=5; 25cm L f:5 (39x); Chris Wyatt (Walcha, NSW, Australia) [Coma large, broad fan-shaped elongation to the North, coma enhances well with Swan band filter. Comp Star= TYC 5273-708-1; Method= S; Cat= TJ]
2010 Jul. 21.02 UT: m1=10.7 ccd, Dia.=2.6′, DC=6; 25cm L +ccd +Rc filter; Toni Scarmato (Calabria, Italia)
2010 Jul. 18.229 UT: m1=8.5, Dia.=8′, DC=3/; 20×100 B; Marco Goiato (Araçatuba, Brasil)
2010 Jul. 18.12 UT: m1=8.6, Dia.=8′, DC=3/; 25×100 B; Juan José González (Alto del Castro – Aralla, alt. 1720 m., León, España) [Coma asimétrica]
2010 Jul. 17.58 UT: m1=8.7, Dia.=8′; 25×100 B; David A. J. Seargent (Cowra, NSW, Australia) [Comet more easily visible through Swan band filter]
2010 Jul. 17.145 UT: m1=8.5, Dia.=8′, DC=3/; 20×100 B; Marco Goiato (Araçatuba, Brasil)
2010 Jul. 15.15 UT: m1=8.6:, Dia.=4′, DC=2; 20×80 B; Alexandre Amorim (Florianopolis, Brazil) [alt. 23 degrees]
2010 Jul. 14.89 UT: m1=9.8, Dia.=5′, DC=2; 25.4cm L; Vyacheslav Ivanov (70 km from Saratov, near Peschanka, Russia)
2010 Jul. 14.20 UT: m1=8.6, Dia.=6′, DC=4; 20×80 B; Alexandre Amorim (Florianopolis, Brazil)
2010 Jul. 13.90 UT: m1=9.5, Dia.=5′, DC=2; 20 cm L; Vyacheslav Ivanov (70 km from Saratov, near Peschanka, Russia)
2010 Jul. 10.11 UT: m1=8.2, Dia.=8′, DC=3/; 25×100 B; Juan José González (Alto del Castro – Aralla, alt. 1720 m., León, España)
2010 Jul. 10.08 UT: m1=9.3 ccd, Dia.=2.6′, DC=6; 25cm L +ccd +Rc filter; Toni Scarmato (Calabria, Italia)
2010 Jul. 09.292 UT: m1=8.6, Dia.=8′, DC=3; 20×100 B; Marco Goiato (Araçatuba, Brasil)
2010 Jul. 06.18 UT: m1=9.7:; 18cm L (57x); Alexandre Amorim (Florianopolis, Brazil)
2010 Jul. 05.28 UT: m1=9.4, Dia.=3′, DC=3; 18cm L (57x); Alexandre Amorim (Florianopolis, Brazil)
2010 Jul. 05.031 UT: m1=8.7, Dia.=8′, DC=3; 20×100 B; Marco Goiato (Araçatuba, Brasil)
2010 Jun. 22.07 UT: m1=8.8, Dia.=8′, DC=3; 25×100 B; Juan José González (Alto del Castro – Aralla, alt. 1720 m., León, España) [Coma asimétrica]
2010 Jun. 19.291 UT: m1=9.2, Dia.=8′, DC=2; 20×100 B; Marco Goiato (Araçatuba, Brasil)
2010 Jun. 19.281 UT: m1=9.3, Dia.=8′, DC=3; 22cm L f:6.5 (60x); Marco Goiato (Araçatuba, Brasil) [melhora significativa com filtro de cometa]
2010 Jun. 18.08 UT: m1=9.1, Dia.=7′, DC=3; 20 cm SCT (77x); Juan José González (Alto del Castro – Aralla, alt. 1720 m., León, España) [Coma asimétrica]
2010 Jun. 17.08 UT: m1=9.8, Dia.=6′, DC=3, no cola; 20cm SCT (50x); Carlos Labordena (Castellón, España)
2010 Jun. 15.4361: m1=10.5, Dia.=6´, DC=3, Cola: no visible; 15cm SCT (37x); Salvador Aguirre (Hermosillo, Sonora, Mexico)
2010 Jun. 14.333 UT: m1=9.4, Dia.=8′, DC=3; 20×100 B; Marco Goiato (Araçatuba, Brasil)
2010 Jun. 12.333 UT: m1=9.9, Dia.=6′, DC=3; 22cm L f:6.5 (60x); Marco Goiato (Araçatuba, Brasil)
2010 Jun. 11.4181 UT: m1=10.5, Dia.=6´, DC=3, Cola: no visible; 15cm SCT (37x); Salvador Aguirre (Hermosillo, Sonora, Mexico)
2010 Jun. 11.08 UT: m1=10.3, Dia.=4′, DC=4, no cola; 20cm SCT (50x); Carlos Labordena (Castellón, España)
2010 Jun. 09.35 UT: m1=9.9, Dia.=3′, DC=4; 18cm L (57x); Alexandre Amorim (Florianopolis, Brazil)
2010 Jun. 08.35 UT: m1=10.0, Dia.=3′, DC=3; 18cm L (57x); Alexandre Amorim (Florianopolis, Brazil)
2010 Jun. 08.07 UT: m1=11.9 ccd, Dia.=2.3′, DC=5; 25cm L +ccd +Rc filter; Toni Scarmato (Calabria, Italia)
2010 Jun. 07.36 UT: m1=10.1, Dia.=2′, DC=2; 18cm L (57x); Alexandre Amorim (Florianopolis, Brazil)
2010 Jun. 06.187 UT: m1=10.3, Dia.=5′, DC=2/; 22cm L f:6.5 (60x); Marco Goiato (Araçatuba, Brasil)
2010 Maio 23.333 UT: m1=10.9, Dia.=4′, DC=2; 22cm L f:6.5 (160x); Marco Goiato (Araçatuba, Brasil)
2010 May. 23.11 UT: m1=11.4, Dia.=1.5′, DC=2, no cola; 23.5cm SCT (94x); Carlos Labordena (Castellón, España)
2010 Maio 22.333 UT: m1=11.1, Dia.=3′, DC=2/; 22cm L f:6.5 (160x); Marco Goiato (Araçatuba, Brasil)
2010 May. 17.11 UT: m1=11.8, Dia.=1.5′, DC=3; 20cm SCT (160x); Juan José González (Cueto Rosales – Riello, alt. 1420 m., León, España)
2010 Maio 14.312 UT: m1=12.4:, Dia.=1.5′, DC=3; 22cm L f:6.5 (160x); Marco Goiato (Araçatuba, Brasil) [cometa entre 2 estrelas de m1= 5.98 e 6.81]
2010 May. 13.76 UT: m1=10.5, Dia.=7.7’, DC=1/2; 25cm L f:5 (39x); Chris Wyatt (Walcha, NSW, Australia) [No tail, coma large and diffuse, even brightness, no central condensation with direct vision, hint of broad central condensation using averted vision. Comp Star= TYC 5777-891-1; Method= S; Cat= TJ]
2010 May. 11.79 UT: m1=12.2, Dia.=3’, DC=2/3; 25cm L f:5 (83x); Chris Wyatt (Walcha, NSW, Australia) [Coma large and diffuse. Comp Star= GSC-5776-0341; Method= S; Cat= HS]
2010 May. 10.74 UT: m1=13.3, Dia.=0.7’, DC=1/2; 25cm L f:5 (83x); Chris Wyatt (Walcha, NSW, Australia) [No tail, faint and diffuse, averted vision. Comp Star= GSC-5776-0171; Method= S; Cat= HS]
2010 Apr. 23.65 UT: m1=13.8, Dia.=0.7’, DC=1; 25cm L f:5 (83x); Chris Wyatt (Walcha, NSW, Australia) [Coma faint and diffuse, even brightness, no tail, averted vision. Comp Star= GSC-5745-0018; Method= S; Cat= HS]
2010 Apr. 22.74 UT: m1=14.4, Dia.=0.5’, DC=1; 25cm L f:5 (83x); Chris Wyatt (Walcha, NSW, Australia) [Coma very small and diffuse, visible using averted vision. Comp Star= GSC-5749-0219; Method= S; Cat= HS]

2P/Encke (27 observaciones)
2010 Sep. 13.92 UT: m1=10.5, Dia.=2′, DC=3; 27cm L f:5 (46x); José G. de Souza Aguiar; (campinas, Brasil)
2010 Sep. 10.92 UT: m1=11.0:; 18cm L (160x); Alexandre Amorim (Florianopolis, Brazil)
2010 Sep. 10.41 UT: m1=10.6, Dia.=3.2′; 18cm L + CCD; Artyom Novichonok (remotely Moorook, S. Australia)
2010 Sep. 09.92 UT: m1=11.0:; 18cm L (57x); Alexandre Amorim (Florianopolis, Brazil)
2010 Sep. 08.94 UT: m1=10.0:; 18cm L (57x); Alexandre Amorim (Florianopolis, Brazil)
2010 Set. 07.937 UT: m1=10.2, Dia.=2.5′, DC=2/; 22cm L f:6.5 (160x); Marco Goiato (Araçatuba, Brasil)
2010 Sep. 06.36 UT: m1=11.0, Dia.= 4.2’, DC= 2/3; 25cm L f:5 (39x); Chris Wyatt (Walcha, NSW, Australia) [No tail, coma more diffuse in central condensation. Comp Star= TYC 6124-93-1; Method= S; Cat= TJ]
2010 Sep. 05.91 UT: m1=9.5, Dia.= 3′, DC=3; 18cm L (57x); Alexandre Amorim (Florianopolis, Brazil)
2010 Sep. 04.93 UT: m1=9.6, Dia.=2′, DC=2; 20Cm SCT (63x); Willian Souza (Sao Paulo, Brazil)
2010 Sep. 02.36 UT: m1=9.9, Dia.= 4.2’, DC= 3/4; 25cm L f:5 (39x); Chris Wyatt (Walcha, NSW, Australia) [Coma appears elongated to SE, no tail, fading twilight. Comp Star= TYC 5542-426-1; Method= S; Cat= TJ]
2010 Set. 01.937 UT: m1=9.8, Dia.=3′, DC=3; 22cm L f:6.5 (160x); Marco Goiato (Araçatuba, Brasil)
2010 Ago. 29.930 UT: m1=9.4 Dia.=4′, DC=3; 22cm L f:6.5 (60x); Marco Goiato (Araçatuba, Brasil) [Crepúsculo astronômico, altitude do cometa= 20° e próximo a estrela de m1: 8.27; melhora da imagem com o uso de filtro de cometa]
2010 Aug. 28.92UT: m1=9.2, Dia.=3′, DC=4; 20×60 B; Willian Souza (Monteiro Lobato, Brazil) [comet altitude ~18deg.]
2010 Aug. 27.93 UT: m1=9.0, Dia.=2′, DC=3; 25×100 B; Jose G. de S. Aguiar (Campinas, Brazil)
2010 Ago. 27.927 UT: m1=9.3 Dia.=4′, DC=3/; 22cm L f:6.5 (60x); Marco Goiato (Araçatuba, Brasil) [Crepúsculo astronômico, altitude do cometa= 17°]
2010 Aug. 26.93 UT: m1=8.8, Dia.=3′, DC=3; 25×100 B; Jose G. de S. Aguiar (Campinas, Brazil)
2010 Aug. 24.93 UT: m1=8.8, Dia.=3′, DC=3; 25×100 B; Jose G. de S. Aguiar (Campinas, Brazil)
2010 Aug. 23.93 UT: m1=8.7, Dia.=3′, DC=2/; 25×100 B; Jose G. de S. Aguiar (Campinas, Brazil)
2010 Aug. 21.93 UT: m1=8.7, Dia.=2′, DC=2/; 25×100 B; Jose G. de S. Aguiar (Campinas, Brazil)
2010 Aug. 21.35 UT: m1=8.8, Dia.=2.9′, DC=4/5; 25cm L (39x); Chris Wyatt (Walcha, NSW, Australia) [No tail, moonlight/twilight affected, 6 degrees above horizon. Comp Star= TYC 4933-146-1; Method= S; Cat= TJ]
2010 Aug. 20.93 UT: m1=8.6, Dia.=2′, DC=2/; 25×100 B; Jose G. de S. Aguiar (Campinas, Brazil)
2010 Aug. 20.35 UT: m1=9.0, Dia.=1.5′, DC=5; 25cm L (39x); Chris Wyatt (Walcha, NSW, Australia) [Coma slightly elongated to SW, no tail, moonlight/twilight affected, 6 degrees above local horizon, coma enhances well with Swan Band filter making the central condensation appear tighter but still not quite stellar. Comp Star= TYC 4923-981-1; Method= S; Cat= TJ]
2010 Aug. 19.93 UT: m1=8.5, Dia.=3′, DC=2/; 25×100 B; Jose G. de S. Aguiar (Campinas, Brazil)
2010 Aug. 19.89 UT: m1=8.8, Dia.=2′, DC=2; 20cm SCT (63x); Willian Souza (Sao Paulo, Brazil) [comet altitude ~12deg.]
2010 Aug. 18.93 UT: m1=8.4, Dia.=3′, DC=3; 25×100 B; Jose G. de S. Aguiar (Campinas, Brazil)
2010 Aug. 18.36 UT: m1=8.4, Dia.= 3′, DC= 5/6; 25cm L (39x); Chris Wyatt (Walcha, NSW, Australia) [No tail, coma diffuse with gradual concentration to centre, not quite stellar central condensation,coma appears very slightly elongated to SW. Enhances well with Swan band filter, 5 degrees above local horizon at time of observation, moonlight affected. Comp Star= TYC 263-668-1; Method= S; Cat= TJ]
2010 Aug. 16.90 UT: m1=[8.1; 20×80 B; Alexandre Amorim (Florianopolis, Brazil) [field altitude: 10 degrees]

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