78P/Gehrels 2

78P/Gehrels 2
Reported observations:
2013 Mar. 18.02 UT: m1=17.2 CCD, Dia.=0.3’ ... CCD images unfiltered... Clermont Vallière (Centre d’Observation Astronomique des Monts Notre-Dame, Québec, Canada) [comparison star 3UCAC 192-105758 mag.=15.75]
2013 Mar. 17.19 UT: m1=17.4 CCD, Dia.=0.4’ ... CCD images unfiltered... Clermont Vallière (Centre d’Observation Astronomique des Monts Notre-Dame, Québec, Canada) [comparison star 3UCAC 191-101320 mag.=16.57]
2013 Mar. 15.22 UT: m1=17.5 CCD, Dia.=0.3’ ... CCD images unfiltered... Clermont Vallière (Centre d’Observation Astronomique des Monts Notre-Dame, Québec, Canada) [comparison star 3UCAC 191-101374 mag.=17.03]
2013 Mar. 10.26 UT: m1=18.0 CCD, Dia.=0.2’ ... CCD images unfiltered... Clermont Vallière (Centre d’Observation Astronomique des Monts Notre-Dame, Québec, Canada) [comparison star 3UCAC 190-099954 mag.=15.92]
2013 Feb. 19.27 UT: m1=17.6 CCD, Dia.=0.2’ ... CCD images unfiltered... Clermont Vallière (Centre d’Observation Astronomique des Monts Notre-Dame, Québec, Canada) [ comparison star 3UCAC 187-097828 mag.=17.62]
2013 Feb. 11.29 UT: m1=17.5 CCD, Dia.=0.2’ ... CCD images unfiltered... Clermont Vallière (Centre d’Observation Astronomique des Monts Notre-Dame, Québec, Canada) [ comparison star 3UCAC 185-101447 mag.=16.50]
2013 Feb. 10.34 UT: m1=17.9 CCD, Dia.=0.2’ ... CCD images unfiltered... Clermont Vallière (Centre d’Observation Astronomique des Monts Notre-Dame, Québec, Canada) [comparison star 3UCAC 185-105605 mag.=16.13]
2013 Jan. 11.11 UT: m1=16.8 CCD, Dia.=0.31′, Tail= 0.2′ in PA: 62 deg ... 0.40-m f/8 Ritchey-Chretien + CCD... V.Gerke & T.Prystavski (Ka-Dar observatory, TAU station C32, remotely Nizhniy Arkhyz, Russia)
2012 Dec. 13.30 UT: m1=17.3 CCD, Dia.=0.6′ ... 30.5-cm SCT... Jakub Cerny (robotic telescope FRAM, Malargue, Argentina)
2012 Nov. 22.33 UT: m1=17.4 CCD, Dia.=0.2′ ... 30.5-cm schmidt-cassegrain... Jakub Cerny [robotic telescope FRAM in Malargue, Argentina]
2012 Abr. 08.85 UT: m1=10.8, Dia.=2.5′, DC=3 ... 20-cm SCT (100x)... Juan José González (Pandorado, alt. 1190 m., León, España) [Fin del crepúsculo astronómico]
2012 Mar. 11.84 UT: m1=10.5, Dia.=3′, DC=3 ... 20-cm SCT (77x)... Juan José González (Alto del Castro – Aralla, alt. 1720 m., León, España)
2012 Feb. 20.83 UT: m1=10.5, Dia.=5′, DC=3 ... 20-cm SCT (77x)... Juan José González (Collada de la Cobertoria, alt. 1175 m., Asturias, España)
2011 Feb. 18.82 UT: m1=11.4, Dia.=2′, DC=2, no tail... 23.5-cm SCT(94x)... Carlos Labordena (Castellón, España)
2012 Feb. 14.11 UT: m1=[11.1 ... 25-cm reflector (120x)... Salvador Aguirre (Hermosillo, Sonora, Mexico)
2012 Jan. 10.79 UT: m1=10.1, Dia.=5′, DC=3/ ... 20-cm SCT (77x)... Juan José González (Alto del Castro – Aralla, alt. 1720 m., Leon, España) [Ligera interferencia de la luz lunar]
2011 Jan. 08.75 UT: m1=11.1, Dia.=3′, DC=2, no tail... 23.5-cm SCT (137x)... Carlos Labordena (Castellón, España)
2012 Jan. 01.968 UT: m1=10.8, Dia.=1.5′, DC=2/ ... 22-cm L f:6.5 (160x)... Marco Goiato (Araçatuba, Brasil)
2011 Dec. 22.80 UT: m1=10.5, Dia.=5′, DC=3/ ... 20-cm SCT (77x)... Juan José González (Collada del Fresno – Sierra del Aramo, 1221 m, Asturias, España)
2011 Dec. 20.97 UT: m1=11.0, Dia.=5′ ... 18-cm L (72x)... Alexandre Amorim(Florianopolis,Brazil)
2011 Dec. 19.98 UT: m1=11.0, Dia.=5′ ... 18-cm L (72x)... Alexandre Amorim(Florianopolis,Brazil)
2011 Dec. 14.44 UT: m1=11.7, Dia.=3′ ... 25.4-cm L (71x)... David A. J. Seargent (Cowra, NSW, Australia)
2011 Dec. 13.44 UT: m1=12.1, Dia.=1.8′, DC=3 ... 25-cm L f:5 (39x)... Chris Wyatt (Walcha, NSW, Australia) [Coma small, close to brightish stars. Comp star= ASAS-3 000645+0026.0 Method= S. Cat= AU]
2011 Nov. 29.09 UT: m1=11.0, Dia.=3´, DC=3, Tail= not visible... 25-cm Reflector (48x)... Salvador Aguirre (Hermosillo, Sonora, Mexico)
2011 Nov. 28.00 UT: m1=10.6, Dia.=3′, DC=3 ... 22-cm L f:6.5 (120x)... Marco Goiato (Araçatuba, Brasil)
2011 Nov. 26.76 UT: m1=9.8, Dia.=6′, DC=3 ... 25×100 B... Juan José González (Alto del Castro – Aralla, alt. 1720 m., León, España)
2011 Nov. 24.79 UT: m1=10.9, Dia.=3′, DC=2, no tail... 23.5-cm SCT(94x)... Carlos Labordena (Castellón, España)
2011 Nov. 24.41 UT: m1=10.9, Dia.=2.0′, DC=6 ... 40.0-cm L f/4.5 (144x)... Seiichi Yoshida (Gunma, Japan)
2011 Nov. 23.958 UT: m1=10.8, Dia.=3′, DC=4 ... 22-cm L f:6.5 (160x)... Marco Goiato (Araçatuba, Brasil)
2011 Nov. 18.48 UT: m1=11.4, Dia.=3' ... 25×100 B... David A. J. Seargent (Cowra, NSW, Australia)
2011 Nov. 17.82 UT: m1=9.8, Dia.=5′, DC=3 ... 20-cm SCT (77x)... Juan José González (Angliru – Sierra del Aramo, alt. 1540 m., Asturias, España)
2011 Nov. 16.00 UT: m1=11.0 ... 27-cm reflector ... José G. de S. Aguiar (Campinas, Brazil)
2011 Nov. 15.47 UT: m1=11.6, Dia.=3´, DC=4 ... 25.4-cm L (71x)... David A. J. Seargent (Cowra, NSW, Australia) [Comet faintly visible in 25×100 binocular]
2011 Nov. 14.00 UT: m1=11.0 ... 27-cm reflector ... José G. de S. Aguiar (Campinas, Brazil)
2011 Nov. 01.104 UT: m1=10.6, Dia.=3′, DC=4 ... 22-cm L f:6.5 (160x)... Marco Goiato (Araçatuba, Brasil)
2011 Nov. 01.08 UT: m1=11.0, Dia.=3´, DC=3, Tail= not visible... 15-cm Reflector (37x)... Salvador Aguirre (Hermosillo, Sonora, Mexico)
2011 Oct. 30.29 UT: m1=11.5, Dia.=2’, DC=1, Tail= not visible... 25-cm SCT (32x)... Alberto Anunziato (Oro Verde, Entre Rios, Argentina) [Mét. Sidgwick, Cat. Tycho II]
2011 Oct. 29.97 UT: m1=10.3, Dia.=6′, DC=3/ ... 20-cm SCT (77x)... Juan José González (Alto del Castro – Aralla, alt. 1720 m., León, España)
2011 Oct. 27.99 UT: m1=11.0:, DC= 6 ... 18-cm L (57x)... Alexandre Amorim (Florianopolis,Brazil)
2011 Out. 27.125 UT: m1=10.8, Dia.=3′, DC=4 ... 22-cm L f:6.5 (160x)... Marco Goiato (Araçatuba, Brasil)
2011 Oct. 25.99 UT: m1=11.5 ... 18-cm L (57x)... Alexandre Amorim (Florianopolis, Brazil) [averted vision]
2011 Oct. 25.85 UT: m1=10.9, Dia.=4′, DC=4, no tail... 20-cm SCT (80x)... Carlos Labordena (Castellón, España)
2011 Oct. 22.94 UT: m1=11.5: ... 18-cm L (57x)... Alexandre Amorim (Florianopolis, Brazil)
2011 Oct. 21.98 UT: m1=11.5: ... 18-cm L (57x)... Alexandre Amorim (Florianopolis, Brazil) [averted vision]
2011 Oct. 20.96 UT: m1=10.5, Dia.=5′, DC=4 ... 20-cm SCT (77x)... Juan José González (Alto del Castro – Aralla, alt. 1720 m., León, España)
2011 Oct. 19.48 UT: m1=12.0 ... 25×100 B... David A. J. Seargent (Cowra, NSW, Australia)
2011 Oct. 16.43 UT: m1=12.1, Dia.=2' ... 25.4-cm L (71x)... David A. J. Seargent (Cowra, NSW, Australia) [Comet also glimpsed in 25×100 binocular telescope]
2011 Oct. 15.81 UT: m1=10.3, Dia.=5′, DC=3/ ... 20-cm SCT (77x)... Juan José González (Aralla, alt. 1360 m., León, España)
2011 Oct. 07.72 UT: m1=11.5, Dia.=1.8′, DC=5 ... 40-cm L f/4.5 (75x)... Seiichi Yoshida (Gunma, Japan)
2011 Oct. 01.08 UT: m1=11.0, Dia.=3.5′, DC=3/ ... 20-cm SCT (77x)... Juan José González (Alto del Castro – Aralla, alt. 1720 m., León, España) [Estrella de magnitud 12.9 (GSC) en la coma]
2011 Sep. 28.125 UT: m1=11.0, Dia.=2.5′, DC=3 ... 22-cm L f:6.5 (160x)... Marco Goiato (Araçatuba, Brasil)
2011 Sep. 24.87 UT: m1=10.8, Dia.=4′, DC=3/ ... 20-cm SCT (77x)... Juan José González (Alto del Castro – Aralla, alt. 1720 m., León, España)
2011 Sep. 22.41 UT: m1=12.0, Dia.=2’, DC=5/ ... 25-cm L f:5 (39x)... Chris Wyatt (Walcha, NSW, Australia) [Coma bright, small, central condensation visible using averted vision, coma elongated to WSW. Comp Star= ASAS-3 234901+0518.1 Method= M. Cat= AU]
2011 Sep. 21.42 UT: m1=12.9, Dia.=1’, DC=5 ... 25-cm L f:5 (83x)... Chris Wyatt (Walcha, NSW, Australia) [Close to bright star, central condensation bright, elongated to the West, averted vision gives the best view. Comp Star= ASAS-3 234920+0522.3 Method= M Cat= AU]
2011 Sep. 20.91 UT: m1=11.3, Dia.=1.5′, DC=4, no tail... 23.5-cm SCT (87x)... Carlos Labordena (Castellón, España)
2011 Sep. 19.90 UT: m1=10.8, Dia.=4′, DC=4 ... 20 -cm SCT (77x)... Juan José González (Alto del Castro – Aralla, alt. 1720 m., León, España) [El cometa se muestra significativamente más brillante que hace dos semanas, mostrando una más amplia coma]
2011 Sep. 19.125 UT: m1=11.5, Dia.=2′, DC=4 ... 22-cm L f:6.5 (160x)... Marco Goiato (Araçatuba, Brasil)
2011 Sep. 15.41 UT: m1=12.2, Dia.=1.5’, DC=5 ... 25-cm L f:5 (83x)... Chris Wyatt (Walcha, NSW, Australia) [Coma very diffuse, small central condensation noticeable in periods of good seeing, no Tail, enhances slightly in Swan Band filter. Averted vision used for m1 measurement. Comp Star= GSC-0593-0517 Method= M Cat= HS]
2011 Sep. 07.06 UT: m1=12.5, Dia.=1.2′, DC=5 ... 20-cm SCT (133x)... Juan José González (Alto del Castro – Aralla, alt. 1720 m., León, España) [Estrellas de comparación de la fotometría TASS]
2011 Sep. 03.04 UT: m1=12.8, Dia.=1.0′, DC=6 ... 20-cm SCT (100x)... Juan José Gonzalez (Pandorado, alt. 1190 m., León, España) [Estrellas de comparación de la fotometría TASS]
2011 Sep. 01.167 UT: m1=12.6, Dia.=1′, DC=4 ... 22-cm L f:6.5 (160x)... Marco Goiato (Araçatuba, Brasil)
2011 Aug. 29.91 UT: m1=13.5, Dia.=0.5′, DC=5 ... 20.3 -cm reflector (133x)... Vyacheslav Ivanov (Melovoe, Russia)
2011 Aug. 26.94 UT: m1=13.2, Dia.=1.0′, DC=6 ... 20-cm SCT (133x)... 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 TASS]
2011 Aug. 25.88 UT: m1=13.5, Dia.=0.7′, DC=6 ... 25.4 -cm reflector (171x)... Vyacheslav Ivanov (Melovoe, Russia)
2011 Aug. 25.51 UT: m1=13.3, Dia.=1’, DC=2/ ... 25-cm L f:5 (83x)... Chris Wyatt (Walcha, NSW, Australia) [Coma best seen with averted vision, no Tail. Comp Star= ASAS-3 000227+0741.7 Method= S. Cat= AU]
2011 Aug. 24.52 UT: m1=13.7, Dia.=1.3’, DC=2 ... 25-cm L f:5 (83x)... Chris Wyatt (Walcha, NSW, Australia) [Coma small, visible using averted vision. Comp Star= ASAS-3 000143+0732.6 Method= S. Cat= AU]
2005 May  03.46 UT: m1=[12.7 ... 40.0-cm L f/4.5 (144x) ... Seiichi Yoshida (Gunma, Japan) [Finally, it became invisible. But the limiting magnitude is not so faint due to the low altitude. Therefore it is uncertain whether the comet became much fainter or not]
2005 Apr. 09.85 UT: m1=12.2, Dia.=1', DC=2, no tail ... 23.5-cm SC(94x) ... Carlos Labordena (Castellón, España)
2005 Apr. 05.45 UT: m1=12.9, Dia.=1.6', DC=0/ ... 40.0-cm L f/4.5 (144x) ... Seiichi Yoshida (Ibaraki, Japan) [Very faint, widely diffused. Hard to see it.]
2005 Apr. 03.81 UT: m1=14.1 CCD, Dia.= 1.0' ... 0.25-m SCT/ccd ... G. Sostero (Remanzacco, Italy) [Distinct central condensation. Cousins R filter used]
2005 Mar. 29.81 UT: m1=13.3, Dia.=0.7', DC=3 ... 36-cm L (90x) ... A. Baransky (Pylypovychi, Ukraine)
2005 Mar. 11.88 UT: m1=12.8, Dia.=0.8', DC=2 ... 20-cm SCT (100x) ... Juan Jose Gonzalez (Camposagrado, alt. 1135 m., León, North Spain)
2005 Mar. 10.75 UT: m1=13.3, Dia.=0.7', DC=2 ... 30-cm L (180x) ... Vitali Nevski (Vitebsk, Belarus)
2005 Mar. 08.86 UT: m1=12.7, Dia.=1', DC=1, no tail ... 23.5-cm SCT (188x) ... Carlos Labordena (Castellón, España)
2005 Mar. 08.48 UT: m1=12.6, Dia.=1.3', DC=2/ ... 40.0-cm L f/4.5 (144x) ... Seiichi Yoshida (Ibaraki, Japan) [Still visible. Similar to the look in February, very diffused. It was in the Hyades, and many bright stars are shining in the field of view]
2005 Feb. 10.84 UT: m1=12.5:, Dia.=1.2', DC=2 ... 36-cm L (90x) ... A. Baransky (Pylypovychi, Ukraine)
2005 Feb. 08.73 UT: m1=12.5, Dia.=1.5', DC=3 ... 30-cm L (60x) ... Vitali Nevski (Vitebsk, Belarus)
2005 Feb. 08.69 UT: m1=12.3, Dia.=1', DC=3/ ... 41-cm L (89x) ... Sergey E. Shurpakov (Baran', Belarus)
2005 Feb. 07.78 UT: m1=11.9, Dia.=2.5', DC=3 ... 36-cm L (90x) ... A. Baransky (Pylypovychi, Ukraine)
2005 Feb. 06.45 UT: m1=12.4, Dia.=0.9', DC=3 ... 32-cm L (87x) ... Yoshimi Nagai (Nagano, Japan) [Faint object]
2005 Feb. 05.79 UT: m1=11.7, Dia.=2.0', DC=3 ... 30-cm L (60x) ... Vitali Nevski (Vitebsk, Belarus)
2005 Feb. 05.77 UT: m1=11.9, Dia.=2.6', DC=3 ... 36-cm L (90x) ... A. Baransky (Pylypovychi, Ukraine)
2005 Feb. 05.46 UT: m1=12.2, Dia.=1.4', DC=3 ... 40.0-cm L f/4.5 (144x) ... Seiichi Yoshida (Ibaraki, Japan) [Surprising transfiguration. Although it had been strongly condensed until January, now it is very diffused]
2005 Jan. 31.91 UT: m1=11.9, Dia.=1.5', DC=3 ... 20-cm SCT (77x) ... Juan Jose Gonzalez (Soto y Amio, alt. 1200 m, León, North Spain)
2005 Jan. 17.80 UT: m1=11.5, Dia.=1', DC=3 ... 41-cm L (89x) ... Sergey E. Shurpakov (Baran', Belarus)
2005 Jan. 16.99 UT: m1=11.3, Dia.=2.7', DC=3 ... 36-cm L (80x) ... A. Baransky (Pylypovychi, Ukraine)
2005 Jan. 11.75 UT: m1=11.2, Dia.=4', DC=3 ... 30-cm L(60x) ... Marcin Filipek (Jerzmanowice near Cracow, Poland)
2005 Jan. 10.56 UT: m1=11.4, Dia.=3', DC=3 ... 20-cm L (45x) ... Andrew Pearce (Noble Falls, Western Australia)
2005 Jan. 09.78 UT: m1=10.9, Dia.=2.0', DC=4 ... 36-cm L (80x) ... A. Baransky (Pylypovychi, Ukraine) [Ellipsoidal coma in the sizes 4'?2', extended in PA 50-230 deg., probably a tail]
2005 Jan. 08.43 UT: m1=11.2, Dia.=2.0', DC=6/ ... 40.0-cm L f/4.5 (144x) ... Seiichi Yoshida (Ibaraki, Japan) [Strongly condensed still now.]
2005 Jan. 07.92 UT: m1=11.1, Dia.=2.5', DC=4 ... 25-cm L (60x) ... J. Carvajal (Avila, Spain)
2005 Jan. 07.90 UT: m1=10.9, Dia.=2.5', DC=4 ... 20-cm SCT (77x) ... Juan Jose Gonzalez (Aralla, alt. 1360 m., León, North Spain)
2005 Jan. 07.87 UT: m1=11.3, Dia.=90", DC=5, no tail ... 23,5-cm (94x) ... Carlos Labordena (Castellón, España) 
2005 Jan. 07.83 UT: m1=11.4, Dia.=2', DC=4 ... 25-cm L (60x) ... J. M. San Juan (Avila, Spain)
2005 Jan. 03.85 UT: m1=10.9, Dia.=2.5', DC=4 ... 20-cm SCT (77x) ... Juan Jose Gonzalez (Aralla, alt. 1360 m., León, North Spain)
2005 Jan. 02.83 UT: m1=11.4, Dia.=1', DC=4 ... 15-cm R f:15 (75x) ... Alfons Diepvens (Balen, Belgium)
2005 Jan. 02.56 UT: m1=11.3, Dia.=2.5', DC=3 ... 20-cm L (45x) ... Andrew Pearce (Noble Falls, Western Australia)
2004 Dec. 30.57 UT: m1=11.3, Dia.=2.8', DC=3 ... 20-cm L (45x) ... Andrew Pearce (Noble Falls, Western Australia)
2004 Dec. 14.95 UT: m1=10.4, Dia.=3', DC=5 ... 25x100 B ... Juan Jose Gonzalez (Sierra del Aramo, alt. 1240 m, Asturias, North Spain)
2004 Dec. 14.01 UT: m1=10.6, Dia.=1.5', DC=4/ ... 19-cm L (38x) ... Sergey E. Shurpakov (Baran', Belarus)
2004 Dec. 13.94 UT: m1=10.7, Dia.=1', DC=4 ... 15-cm R f:15 (75x) ... Alfons Diepvens (Balen, Belgium)
2004 Dec. 13.04 UT: m1=10.1, Dia.=2.3', DC=5/ ... 20-cm L (38x) ... Tilen Cadez (Kisovec, alt. 1250m, Slovenia) [Transparent sky, good seeing. Sidgwick method was used, because star 12.3 mag was at the edge of comet's coma]
2004 Dec. 12.92 UT: m1=10.8, Dia.=3', DC=5 ... 20-cm SCT (77x) ... Juan Jose Gonzalez ( Sierra del Aramo, alt. 1240 m, Asturias, North Spain)
2004 Dec. 11.82 UT: m1=10.9, Dia.=2', DC=5, no tail ... 23,5-cm SCT (67x) ... Carlos Labordena (Castellon, Spain)
2004 Dec. 11.74 UT: m1=10.8, Dia.=3.3', DC=3/ ... 20-cm L (45x) ... Andrew Pearce (Noble Falls, Western Australia)
2004 Dec. 11.41 UT: m1=11.2, Dia.=1.9', DC=7 ... 40.0-cm L f/4.5 (75x) ... Seiichi Yoshida (Gunma, Japan) [Getting fainter a bit, but still strongly condensed.]
2004 Dec. 09.52 UT: m1=11.1, Dia.=2.1', DC=6 ... 32-cm L (58x) ... Yoshimi Nagai (Nagano, Japan)
2004 Dec. 09.02 UT: m1=10.2, Dia.=2.9', DC=4 ... 20-cm L (38x) ... Tilen Cadez (Kisovec, alt. 1250m, Slovenia) [Transparent sky, good seeing, windy]
2004 Dec. 06.00 UT: m1=10.5, DC=7 ... SCT 8" F/10 ... Pierre Laporte (C.O.A.M.N.D., Québec, Canada)
2004 Dec. 05.94 UT: m1=10.3, Dia.=3', DC=5 ... 20-cm SCT (77x) ... Juan Jose Gonzalez (Camposagrado, alt.1135 m, Leon, North Spain)
2004 Dec. 05.80 UT: m1=10.3, Dia.=2', DC=6 ... 20.3-cm L (63x) ... Piotr Guzik (Krosno, Poland) [Still bright and highly condensed.]
2004 Dec. 03.90 UT: m1=10.7, Dia.=2', DC=4 ... 15-cm R f:15 (75x) ... Alfons Diepvens (Balen, Belgium)
2004 Dec. 02.49 UT: m1=10.7, Dia.=2.0', DC=6 ... 32-cm L (58x) ... Yoshimi Nagai (Nagano, Japan)
2004 Nov. 22.05 UT: m1=10.1, Dia.=2.3', DC=4/ ... 20-cm L (38x) ... Tilen Cadez (Kamnik, Slovenia) [Moon (75%) setting]
2004 Nov. 22.00 UT: m1=11.1, Dia.=1.5', DC=5 ... 19-cm L (38x) ...  Sergey E. Shurpakov (Baran', Belarus)
2004 Nov. 21.01 UT: m1=9.9, Dia.=2', DC=5, ... 15-cm R f:15 (75x) ... Alfons Diepvens (Balen, Belgium)
2004 Nov. 20.80 UT: m1=10.3, Dia.=2.5', DC=5 ... 20-cm L (45x) ... Andrew Pearce (Noble Falls, Western Australia) [Bright and prominent central condensation]
2004 Nov. 20.05 UT: m1=10.0, Dia.=1.8', DC=4/ ... 20-cm L (38x) ... Tilen Cadez (Kamnik, Slovenia)
2004 Nov. 18.03 UT: m1=9.9, Dia.=1.8', DC=4 ... 20-cm L (38x) ... Tilen Cadez (Kamnik, Slovenia)
2004 Nov. 17.90 UT: m1=12.6 CCD, Dia.=35", DC=8 ... 11-cm L (1/7,3) ... Sergey E. Shurpakov (Baran', Belarus)
2004 Nov. 16.99 UT: m1=9.6, Dia.=3', DC=3/ ... 20-cm L (70x) ... A. Baransky (Bucha, Ukraine)
2004 Nov. 16.77 UT: m1=10.4, Dia.=1.7', DC=7, Tail= 6' in PA: 270 deg ... 30-cm L (60x) ... Vitali Nevski (Vitebsk, Belarus)
2004 Nov. 16.72 UT: m1=10.6, Dia.=2', DC=4/ ... 19-cm L (38x) ... Sergey E. Shurpakov (Baran', Belarus)
2004 Nov. 16.57 UT: m1=10.2, Dia.=1.8', DC=6/ ... 32-cm L (58x) ... Yoshimi Nagai (Nagano, Japan)
2004 Nov. 16.53 UT: m1=10.1, Dia.=2', DC=6 ... 25x100 B ... Michael Mattiazzo (Stockport Observatory, South Australia) [Surprised to see it this bright. ?outburst activity or light curve asymmetry. In a 38-cm reflector, a bright stellar nucleus is visible with a short tail in PA 280]
2004 Nov. 16.07 UT: m1=9.8, Dia.=3', DC=5 ... 25x100 B ... Juan Jose Gonzalez (Camposagrado, alt.1135 m, Leon, North Spain)
2004 Nov. 16.06 UT: m1=10.2, Dia.=1.4', DC=5 ... 20-cm L (38x) ... Tilen Cadez (Kamnik, Slovenia)
2004 Nov. 15.76 UT: m1=10.6, Dia.=1.6', DC=5 ... 41-cm L (89x) ... Sergey E. Shurpakov (Baran', Belarus)
2004 Nov. 14.83 UT: m1=10.3, Dia.=1.5', DC=5 ... 20-cm L (45x) ... Jacek Powichrowski (Bialystok, Poland)
2003 Nov. 14.74 UT: m1=10.8, Dia.=1.5', DC=4/ ... 19-cm L (38x) ... Sergey E. Shurpakov (Baran', Belarus)
2004 Nov. 13.90 UT: m1=11.1, Dia.=90", DC=7, Tail= 90" ... 23.5-cm SCT (67x) ... Carlos Labordena (Castellon, Spain)
2004 Nov. 13.90 UT: m1=10.9, Dia.=1', DC=7 ... 15-cm F8 R (30x) ... Rafael Benavides (Posadas, Cordoba, Spain)
2004 Nov. 13.89 UT: m1=9.7, Dia.=2', DC=6 ... 15-cm R f:15 (75x) ... Alfons Diepvens (Balen, Belgium)
2004 Nov. 13.79 UT: m1=10.4, Dia.=2', DC=5 ... 20-cm L (45x) ... Andrew Pearce (Noble Falls, Western Australia)
2004 Nov. 13.50 UT: m1=10.5, Dia.=3', DC 5, Tail= 5' ... 20-cm L (61x) ... Paul Camilleri (Koonoomoo, Cobram, Victoria, Australia) [Comet was a bright small condense object with a short tail, was easily seen through 20x80B]
2004 Nov. 13.06 UT: m1=10.4, Dia.=2.5', DC=6 ... 20-cm SCT (77x) ... Juan Jose Gonzalez (Camposagrado, alt.1135 m, Leon, North Spain)
2004 Nov. 11.96 UT: m1=10.2, Dia.=1.9, DC=4, Tail= 3 in PA: 275 deg ... 100x25 B ... Ali Koohpaee (central desert, Semnan, Iran) [easily to see]
2004 Nov. 11.82 UT: m1=10.1, Dia.=2', DC=7 ... 20.3-cm L (63x) ... Piotr Guzik (Krosno, Poland) [Very bright, well condensed, much brighter than in the middle of September. The comet seemed to be even a bit brighter than C/2004 Q1 (Tucker)]
2004 Nov. 09.92 UT: m1=9.6, Dia.=1,2', DC=3 ... 20-cm SCT (80x) ... Jose Pablo Navarro Pina (El Palmar, Murcia, Spain)
2004 Nov. 09.86 UT: m1=10.4, Dia.=2', DC=6 ... 30-cm L(60x) ... Marcin Filipek (Jerzmanowice near Cracow, Poland)
2004 Nov. 09.52 UT: m1=10.3, Dia.=2.1', DC=6, Tail= 4.2' in PA: 255 deg ... 40.0-cm L f/4.5 (36x) ... Seiichi Yoshida (Gunma, Japan)
2004 Oct. 28.01 UT: m1=10.7, DC=7 ... 8" SCT: m1=10.2, Dia.=1.5', DC=2 ... 20-cm SCT ... J. P. Navarro Pina (Murcia, Spain)
2004 Oct. 24.03 UT: m1=11.4, Dia.=0.8´, DC=4 ... 30-cm SCT (76x) ... Martin Adamovsky (Rokycany, Czech Republic) [moonlight]
2004 Oct. 23.81 UT: m1=10.8, Dia.=1.9', DC=6/ ... 32-cm L (58x) ... Yoshimi Nagai (Nagano, Japan)
2004 Oct. 23.05 UT: m1=11.6, Dia.=1´, DC=5 ... 30-cm SCT ... Martin Adamovsky (Rokycany, Czech Republic) [Easy visible]
2004 Oct. 22.81 UT: m1=11.3, Dia.=2.5', DC=4/ ... 20-cm L (45x) ... Andrew Pearce (Noble Falls, Western Australia)
2004 Oct. 19.89 UT: m1=12.0, Dia.=1', DC=5/ ... 30-cm L(105x) ... Marcin Filipek (Jerzmanowice near Cracow, Poland)
2004 Oct. 17.03 UT: m1=11.1, Dia.=2', DC=3 ... 23.5-cm SCT (58x) ... Rafael Benavides (Posadas, Cordoba, Spain)
2004 Oct. 16.96 UT: m1=11.0, Dia.=2', DC=4, no tail ...  23,5-cm SCT (94x) ... Carlos Labordena (Castellon, Spain)
2004 Oct. 16.81 UT: m1=11.6, Dia.=2.6', DC=4 ... 20-cm L (45x) ... Andrew Pearce (Noble Falls, Western Australia)
2004 Oct. 16.55 UT: m1=11.2, Dia.=2.2', DC=5/ ... 32-cm L (87x) ... Yoshimi Nagai (Nagano, Japan)
2004 Oct. 15.65 UT: m1=11.0, Dia.=2.3', DC=6 ... 32-cm L (58x) ... Yoshimi Nagai (Nagano, Japan)
2004 Oct. 15.56 UT: m1=11.0, Dia.=1.1', DC=7, Tail= 1.7' in PA: 260 deg ... 40.0-cm L f/4.5 (75x) ... Seiichi Yoshida (Gunma, Japan)
2004 Oct. 14.97 UT: m1=10.9, Dia.=1.8', DC=3, Tail= 3' in PA: 260 deg ... 20-cm L (70x) ... A. Baransky (Bucha, Ukraine)
2004 Oct. 14.93 UT: m1=13.5 CCD, Dia.=0.5', DC=8  ... 11-cm L ... Sergey E. Shurpakov (Baran', Belarus)
2004 Oct. 13.99 UT: m1=11.0, Dia.=1.7', DC=3/, Tail= 3' in PA: 260 deg ... 36-cm L (80x) ... A. Baransky (Pylypovychi, Ukraine)
2004 Oct. 13.85 UT: m1=10.7, Dia.=1', DC=6, Tail= 3' in PA: 250 deg ... 30-cm L (60x) ... Vitali Nevski (Vitebsk, Belarus)
2004 Oct. 12.08 UT: m1=11.2, Dia.=2.5', DC=3 ... 20-cm L (110x) ... Jacek Powichrowski (Bialystok, Poland)
2004 Oct. 12.01 UT: m1=11.2, Dia.=2', DC=3, no tail ... 23,5-cm SCT (57x) ... Carlos Labordena (Castellon, Spain)
2004 Oct. 10.62 UT: m1=11.4, Dia.=1.8', DC=6/ ... 32-cm L (58x) ... Yoshimi Nagai (Nagano, Japan)
2004 Oct. 10.38 UT: m1=11.4, Dia.=1.3', DC=3/ ... 25.6-cm L f/4.5 (105x) ... Charles S. Morris (Fillmore, CA) [Comet elongated. CCD image taken with a 41-cm SCT shows a significant tail > 10']
2004 Oct. 09.88 UT: m1=11.7, Dia.=1', DC=4 ... 30-cm L(105x) ... Marcin Filipek (Jerzmanowice near Cracow, Poland)
2004 Oct. 09.61 UT: m1=12.0, Dia.=2', DC=3 ... 38-cm L 150x ... Michael Mattiazzo (Stockport Observatory, South Australia)
2004 Oct. 08.82 UT: m1=11.6, Dia.=1.8', DC=4 ... 20-cm L (45x) ... Andrew Pearce (Noble Falls, Western Australia)
2004 Oct. 08.20 UT: m1=11.9, DC=7 ... 8" SCT F/10 ... Pierre Laporte (C.O.A.M.N.D., Québec, Canada) 
2004 Oct. 06.94 UT: m1=14.0 CCD, Dia.=0.6', DC=6, Tail= 3' in PA: 256 deg ... 11-cm L ... Sergey E. Shurpakov (Baran', Belarus)
2004 Sep. 24.85 UT: m1=11.8, Dia.=2.1', DC=4 ... 20-cm L (45x) ... Andrew Pearce (Noble Falls, Western Australia)
2004 Sep. 21.97 UT: m1=11.9, Dia.=2', DC=5 ... 20.3-cm L (63x) ... Piotr Guzik (Krosno, Poland)
2004 Sep. 20.22 UT: m1=12.2, DC=7 ... 8" SCT F/10 ... Pierre Laporte (C.O.A.M.N.D., Québec, Canada)
2004 Sep. 19.95 UT: m1=12.2, Dia.=1.5', DC=2/ ... 20-cm L (110x) ... Wojciech Burzynski (Czarna Bialostocka, Poland)
2004 Sep. 19.94 UT: m1=11.6, Dia.=1.4', DC=4 ... 20-cm L (110x) ... Jacek Powichrowski (Bialystok, Poland)
2004 Sep. 19.82 UT: m1=12.3, Dia.=1', DC=3/ ... 41-cm L(89x) ... Sergey E. Shurpakov (Baran', Belarus)
2004 Sep. 19.04 UT: m1=11.9, Dia.=2', DC=5 ... 20.3-cm L (63x) ... Piotr Guzik (Krosno, Poland)
2004 Sep. 18.99 UT: m1=11.8, Dia.=1', DC=3, no tail ... 23,5-cm SCT (94x) ... Carlos Labordena (Castellon, Spain)
2004 Sep. 18.93 UT: m1=12.0, Dia.=2.5', DC=3/ ... 36-cm L (80x) ... A. Baransky (Pylypovychi, Ukraine) [Rather bright, well seen comet, fanlike ?]
2004 Sep. 17.99 UT: m1=14.9 CCD, Dia.=0.26', DC=6, Tail= 1.3' in PA: 255 deg ... 11-cm L ... Sergey E. Shurpakov (Baran', Belarus)
2004 Sep. 17.98 UT: m1=11.9, Dia.=2', DC=5 ... 20.3-cm L (63x) ... Piotr Guzik (Krosno, Poland)
2004 Sep. 17.94 UT: m1=11.5, Dia.=1.5', DC=4 ... 30-cm L (60x) ... Vitali Nevski (Vitebsk, Belarus)
2004 Sep. 17.86 UT: m1=12.4, Dia.=1.2', DC=3 ... 20-cm L (90x) ... Andrew Pearce (Noble Falls, Western Australia)
2004 Sep. 17.70 UT: m1=11.7, Dia.=1.1', DC=7, Tail= 1.7' in PA: 240 deg ... 40.0-cm L f/4.5 (144x) ... Seiichi Yoshida (Gunma, Japan)
2004 Sep. 17.03 UT: m1=11.8, Dia.=2', DC=5 ... 20.3-cm L (63x) ... Piotr Guzik (Krosno, Poland) [Comet seems to be a bit brighter than a few days ago. Bigger and brighter than C/2004 Q1]
2004 Sep. 17.02 UT: m1=12.1, Dia.=1.8', DC=3 ... 20-cm SCT (77x) ... Juan Jose Gonzalez (Alto del Castro - Aralla, alt. 1720 m, Leon, North Spain)
2004 Sep. 17.01 UT: m1=12.5, Dia.=1.1', DC=4 ... 20-cm L (110x) ... Jacek Powichrowski (Bialystok, Poland)
2004 Sep. 15.76 UT: m1=11.5, Dia.=1.4', DC=6/ ... 32-cm L (87x) ... Yoshimi Nagai (Nagano, Japan) [Condense]
2004 Sep. 14.92 UT: m1=12.2, Dia.=1.5', DC=5 ... 20.3-cm L (63x) ... Piotr Guzik (Krosno, Poland)
2004 Sep. 13.98 UT: m1=11.8, Dia.=1.5', DC=3 ... 30-cm L (60x) ...  Vitali Nevski (Vitebsk, Belarus)
2004 Sep. 13.92 UT: m1=14.2 CCD, Dia.=30", DC=5 ... 11-cm L ... Sergey E. Shurpakov (Baran', Belarus)
2004 Sep. 11.96 UT: m1=13.0:, Dia.=1.5', DC=4 ... 36-cm L (80x) ... A. Baransky (Pylypovychi, Ukraine) [Difficult observations, comet close to star 11.8m ]
2004 Sep. 11.84 UT: m1=12.7, Dia.=1.2', DC=1/ ... 20-cm L (45x) ... Andrew Pearce (Noble Falls, Western Australia)
2004 Sep. 10.98 UT: m1=12.1, Dia.=1.2', DC=6 ... 20.3-cm L (63x) ... Piotr Guzik (Krosno, Poland)
2004 Sep. 10.90 UT: m1=12.5, Dia.=1', DC=3 ... 20-cm L (110x) ... Jacek Powichrowski (Bialystok, Poland)
2004 Sep. 10.87 UT: m1=12.0, Dia.=1', DC=3 ... 30-cm L(105x) ... Marcin Filipek (Jerzmanowice near Cracow, Poland)
2004 Sep. 10.85 UT: m1=12.6, Dia.=1.2', DC=2/ ... 20-cm L (45x) ... Andrew Pearce (Noble Falls, Western Australia)
2004 Sep. 09.99 UT: m1=11.9, Dia.=1', DC=4  ... 20-cm L (110x) ... Jacek Powichrowski (Bialystok, Poland)
2004 Sep. 08.93 UT: m1=12.3, Dia.=1.2', DC=5 ... 20.3-cm L (63x) ... Piotr Guzik (Krosno, Poland) [Easily visible, small, well condensed object.]
2004 Aug. 26.35 UT: m1=13.0 ccd, Dia.=24x35", DC=7/ ... 0.41-m SCT/ccd ... P. Clay Sherrod (ASO Petit Jean Mountain) [Very nice tail spike in PA 255 for 2' length, very condensed coma with strong central conds. (*m2=14.3ccd), coma is elongated (24" x 35") in axis of tail]
2004 Aug. 24.97 UT: m1=12.1, Dia.=1', DC=3/ ... 41-cm L (89 x) ... Sergey E. Shurpakov (Baran', Belarus)
2004 Aug. 21.76 UT: m1=12.4, Dia.=1.1', DC=5/ ... 40.0-cm L f/4.5 (144x) ... Seiichi Yoshida (Gunma, Japan)
2004 Aug. 21.14 UT: m1=12.5, Dia.=1.0', DC=3 ... 20-cm SCT (100x) ... Juan Jose Gonzalez (Alto del Castro - Aralla, alt. 1720 m, Leon, North Spain)
2004 Aug. 20.93 UT: m1=12.7, Dia.=0.8', DC=2 ... 30-cm L (100x) ... Vitali Nevski (Vitebsk, Belarus)
2004 Aug. 15.09 UT: m1=12.7, Dia.=3', DC=2, no tail ... 23.5-cm SCT (94x) ... Carlos Labordena (Castellon, Spain)
2004 Aug. 13.14 UT: m1=12.8, Dia.=0.8', DC=4 ... 20-cm SCT (100x) ... Juan Jose Gonzalez (Alto del Castro - Aralla, alt. 1720 m, Leon, North Spain)
2004 Aug. 12.94 UT: m1=13.4:, Dia.=1.3', DC=2 ... 36-cm L (70x) ... A. Baransky (Pylypovychi, Ukraine)
2004 Aug. 11.99 UT: m1=12.5, Dia.=1', DC=2 ... 30-cm L (60x) ... Vitali Nevski (Vitebsk, Belarus)