C/2009 P1 (Garradd)

C/2009 P1 (Garradd)
2013 Mar. 17.09 UT: m1=17.0 CCD, Dia.=0.3’... CCD images unfiltered... Clermont Vallière (Centre d’Observation Astronomique des Monts Notre-Dame, Québec, Canada) [comparison star 3UCAC 162-093818 mag.=16.52]
2013 Mar. 10.29 UT: m1=16.5, DC=3... Visual 36″ f/3.5... Jean-François Viens (Centre d’Observation Astronomique des Monts Notre-Dame, Québec, Canada)
2013 Mar. 04.82 UT: m1=15.2, Dia.=0.3’, DC=2... 50.8-cm reflector (287x)... Sandor Szabo (Sopron, Hunagry) [Small comet but easy to see with averted vision]
2013 Feb. 11.23 UT: m1=16.2 CCD, Dia.=0.2’... CCD images unfiltered... Clermont Vallière (Centre d’Observation Astronomique des Monts Notre-Dame, Québec, Canada) [comparison star 3UCAC 159-097990 mag.=15.17]
2013 Feb. 07.22 UT: m1=16.8 CCD, Dia.=0.2’... CCD images unfiltered... Clermont Vallière (Centre d’Observation Astronomique des Monts Notre-Dame, Québec, Canada) [comparison star 3UCAC 159-099844 mag.=16.75]
2013 Feb. 03.23 UT: m1=16.2 CCD... Dia.=0.4’... CCD images unfiltered... Clermont Vallière (Centre d’Observation Astronomique des Monts Notre-Dame, Québec, Canada) [comparison star 3UCAC 159-100771 mag.=16.23]
2013 Feb. 02.23 UT: m1=16.5 CCD... Dia.=0.4’... CCD images unfiltered... Clermont Vallière (Centre d’Observation Astronomique des Monts Notre-Dame, Québec, Canada) [comparison star 3UCAC 159-100771 mag.=16.23]
2013 Feb. 02.22 UT: m1=15.2 CCD, Dia.=0.6′... 30.5-cm SCT... Jakub Cerny (robotic telescope FRAM, Malargue, Argentina)
2013 Jan. 19.21 UT: m1=15.7 CCD, Dia.=0.8′... 30.5-cm SCT... Jakub Cerny (robotic telescope FRAM, Malargue, Argentina)
2013 Jan. 18.28 UT: m1=16.5 CCD, Dia.=0.4’... CCD images unfiltered... Clermont Vallière (Centre d’Observation Astronomique des Monts Notre-Dame, Québec, Canada) [comparison star 3UCAC 243-087517 mag. = 15.76]
2013 Jan. 09.45 UT: m1=13.9 C CCD, Dia.=&2.0′, Tail= 20′ in PA: 32 deg ... 11-cm R + CCD... Artyom Novichonok (remotely from Mayhill, U.S.A.)
2013 Jan. 09.28 UT: m1=15.4 CCD, Dia.=1.1′... 30.5-cm SCT... Jakub Cerny (robotic telescope FRAM, Malargue, Argentina)
2012 Dec. 13.18 UT: m1=14.0, Dia.=0.5′, DC=2... 40-cm L (250x)... Sandor Szabo (Sopron, Hungary) [Only 5’ from gamma Sextantis, but can be seen with averted vision]
2012 Dec. 12.33 UT: m1=14.8 CCD, Dia.=1.3′... 30.5-cm SCT... Jakub Cerny (robotic telescope FRAM, Malargue, Argentina)
2012 Nov. 24.78 UT: m1=13.0, Dia.=1.4′, DC=3... 40.0-cm L f/4.5 (144x)... Seiichi Yoshida (Gunma, Japan)
2012 Nov. 19.30 UT: m1=14.9 CCD, Dia.=0.9′... 30.5-cm schmidt-cassegrain... Jakub Cerny [robotic telescope FRAM in Malargue, Argentina]
2012 June 23.37 UT: m1=10.2, Dia.=3.2’, DC=2/3... 25-cm L f:5 (39x)... Chris Wyatt (Walcha, NSW, Australia) [No tail, moonlight affected, outer coma visible using averted vision, central condensation slightly brighter but AP:pears like a small broad circular smudge of light. Extinction corrected. Method= S. Cat= TK]
2012 June 19.35 UT: m1=10.3, Dia.=4.5’, DC=2/3... 25-cm L f:5 (39x)... Chris Wyatt (Walcha, NSW, Australia) [No tail, coma edges diffuse, gradually brightens to a diffusely formed central condensation around 1’ diameter, zodiacal light interference. Method= S. Cat= TK]
2012 June 18.35 UT: m1=10.3, Dia.=4’, DC=4... 25-cm L f:5 (39x)... Chris Wyatt (Walcha, NSW, Australia) [No tail, averted vision to determine coma dia, small diffuse central condensation using direct vision. Method= S. Cat= TK]
2012 June 16.89 UT: m1=10.6, Dia.=5′, DC=3, Tail= 10′... 23.5-cm SCT (67x)... Carlos Labordena (Castellón, España)
2012 June 15.36 UT: m1=9.9, Dia.=3.5’, DC=2... 25-cm L f:5 (39x)... Chris Wyatt (Walcha, NSW, Australia) [No tail, coma diffuse. Extinction corrected. Method= S... Cat= TK]
2012 June 14.35 UT: m1=10.5, Dia.=4’, DC=2... 25-cm L f:5 (39x)... Chris Wyatt (Walcha, NSW, Australia) [No tail, close to bright star, slight interference by zodiacal light, small diffuse central condensation, slightly brighter than the edges of the coma, visible with direct vision but better to see using averted vision. Method= S... Cat= TK]
2012 June 13.94 UT: m1=10.2, Dia.=5′, DC=3/... 20-cm SCT (77x)... Juan Jose Gonzalez (Alto del Castro, 1720 m alt., León, España) [Cola de polvo de 0.2º en AP: 30º]
2012 May  27.14 UT: m1=10.0, Dia.=3´, DC=3, Tail= not visible... 15-cm SCT (37x)... Salvador Aguirre (Hermosillo, Sonora, Mexico)
2012 May  21.90 UT: m1=9.5:, Dia.=2′, DC=1... 18-cm L (57x)... Alexandre Amorim (Florianopolis, Brazil)
2012 May  19.90 UT: m1=9.3, Dia.=4′, DC=3... 20.3-cm L f:6 (48x)... Mieczyslaw Leszek Paradowski (Dabrowa, Poland)
2012 May  18.937 UT: m1=9.1, Dia.=6′, DC=3... 22-cm L f:6.5 (60x)... Marco Goiato (Araçatuba, Brasil)
2012 May  17.89 UT: m1=10.2, Dia.=2′, DC=4, Tail= 0.05 deg. in PA: 56 and 153 deg.... 32-cm reflector (96x)... Uwe Pilz (Leipzig, Germany)
2012 May  15.90 UT: m1=9.5, Dia.=2′, DC=1... 18-cm L (57x)... Alexandre Amorim (Florianopolis, Brazil)
2012 May  14.97 UT: m1=8.2, Dia.=6′, DC=4... 25×100 B... Juan José González (Pandorado, 1190 m alt., León, España) [Varias estrellas en la coma, teniendo la más brillante mag. 10.1 (TK)]
2012 May  14.43 UT: m1=8.7, Dia.=4′... 25×100 B... David A. J. Seargent (Cowra, NSW, Australia) Observed at low elevation.
2012 May  13.89 UT: m1=9.4, Dia.=6′, DC=3... 20.3-cm L f:6 (48x)... Mieczyslaw Leszek Paradowski (Dabrowa, Poland)
2012 May  11.16 UT: m1=9.0, Dia.=4´, DC=3, Tail= not visible... 15-cm SCT (37x)... Salvador Aguirre (Hermosillo, Sonora, Mexico)
2012 May  09.95 UT: m1=8.2, Dia.=6′, DC=5... 25×100 B... Juan José González (El Fito – Sierra del Sueve, 570 m alt., Asturias, España)
2012 May  09.937 UT: m1=9.2, Dia.=4′, DC=3... 22-cm L f:6.5 (60x)... Marco Goiato (Araçatuba, Brasil)
2012 May  08.88 UT: m1=8.7, Dia.=3′... 8-cm refractor ... Uwe Pilz (Leipzig, Germany)
2012 Apr. 24.937 UT: m1=8.3, Dia.=6′, DC=3/... 20x100 B... Marco Goiato (Araçatuba, Brasil)
2012 Apr. 24.88 UT: m1=8.5, Dia.=5′, DC=5... 25.4-cm reflector (60x)... Vyacheslav Ivanov (Melovoe, Russia)
2012 Apr. 22.937 UT: m1=8.2, Dia.=7′, DC=3/... 20x100 B... Marco Goiato (Araçatuba, Brasil)
2012 Apr. 22.13 UT: m1=8.0, Dia=8´, DC=4, Tail= not visible... 15-cm SCT (37x)... Salvador Aguirre (Hermosillo, Sonora, Mexico)
2012 Apr. 21.87 UT: m1=8.1, Dia.=7′, DC=5, Tail= 20′... 23.5-cm SCT (67x)... Carlos Labordena (Castellón, España)
2012 Apr. 21.86 UT: m1=7.9, Dia.=6′, DC=4, no tail... 11×80 B... Carlos Labordena (Castellón, España)
2012 Apr. 21.63 UT: m1=7.7, Dia.=9′, DC=5... 10×50 B... M.-T. Hui (Mt. Mulan, Wuhan, China)
2012 Apr. 18.948 UT: m1=8.2, Dia.=5′, DC=4... 22-cm L f:6.5 (60x)... Marco Goiato (Araçatuba, Brasil) [Altitude do cometa: 24º]
2012 Apr. 18.937 UT: m1=8.0, Dia.=7′, DC=3/... 20x100 B... Marco Goiato (Araçatuba, Brasil) [Altitude do cometa: 24º]
2012 Apr. 16.033 UT: m1=7.7:... 20×50 B... Luis Mansilla (Rosario, Argentina) [brumoso, altura 8 grados]
2012 Apr. 14.12 UT: m1=7.5, Dia.=8´, DC=4, Tail= not visible... 15-cm SCT (37x)... Salvador Aguirre (Hermosillo, Sonora, Mexico)
2012 Apr. 13.948 UT: m1=7.9, Dia.=6′, DC=4... 20X100 B... Marco Goiato (Araçatuba, Brasil) [Altitude do cometa: 20º]
2012 Apr. 13.937 UT: m1=7.6:, Dia.=8′, DC=3... 7X50 B... Marco Goiato (Araçatuba, Brasil) [Altitude do cometa: 20º]
2012 Apr. 13.38 UT: m1=7.6, Dia.=4′... 25×100 B... David A. J. Seargent (Cowra, NSW, Australia) [Observed at low elevation]
2012 Apr. 10.84 UT: m1=7.6, Dia.=7′, DC=4... 6.8-cm R f:5.8 (23)... Mieczyslaw Leszek Paradowski (Lublin, Poland)
2012 Apr. 09.83 UT: m1=7.6, Dia.=7′, DC=4... 6.8-cm R f:5.8 (23x)... Mieczyslaw Leszek Paradowski (Lublin, Poland)
2012 Apr. 08.86 UT: m1=7.4, Dia.=12′, DC=5... 10×50 B... Juan José González (Pandorado, alt. 1190 m., León, España) [Cola de polvo de 0.5º en AP: 30º]
2012 Mar. 30.15 UT: m1=7.0, Dia.=10´, DC=4, Tail= not visible... 15-cm SCT (37x)... Salvador Aguirre (Hermosillo, Sonora, Mexico).
2012 Mar. 28.10 UT: m1=7.1, Dia.=12′, DC=5... 10×50 B... Juan José González (Alto del Castro – Aralla, alt. 1720 m., León, España)[Cola de polvo de 0.7º en AP: 40º]
2012 Mar. 24.83 UT: m1=7.4, Dia.=10′, DC=4... 7×50 B... Mieczyslaw Leszek Paradowski (Lublin, Poland)
2012 Mar. 24.83 UT: m1=7.1, Dia.=7.3′, DC=5, Dust Tail: 0.5 deg. in PA: 40 deg., Ion Tail: 0.4 deg. in PA: 126 deg ... 10.2-cm Maksutov reflector... M.-T. Hui (Mt. Mulan, Wuhan, China) [several stars inside the coma]
2012 Mar. 15.08 UT: m1=6.9, Dia.=13′, DC=6... 10×50 B... Juan José González (Alto del Castro – Aralla, alt. 1720 m., León, España) [Cola de polvo de 0.5º en AP: 50º. Débil cola iónica]
2012 Mar. 13.65 UT: m1=7.2, Dia.=18.0’±0.9′, DC=5... 7×50 B... Artyom Novichonok (Nam Cat Tien National Park, Vietnam)
2012 Mar. 11.86 UT: m1=6.8, Dia.=14′, DC=6... 10×50 B... Juan José González (Alto del Castro – Aralla, alt. 1720 m., León, España) [Cola de polvo de 0.4º en AP: 80º. La cola iónica se muestra más débil que en mi observación previa de Mar. 1.04]
2012 Mar. 05.89 UT: m1=6.9, Dia.=14.7’±1.2′, DC=5... 7×50 B... Artyon Novichonok (Nam Cat Tien National Park, Vietnam)
2012 Mar. 04.16 UT: m1=6.3, Dia.=8′, DC=7, no tail... Naked Eye.... Carlos Labordena (Castellón, España)
2012 Mar. 04.15 UT: m1=6.5, Dia.=9′, DC=5, Tail= 60′... 11×80 B... Carlos Labordena (Castellón, España)
2012 Mar. 01.77 UT: m1=6.7, Dia.=14.1’±0.4′, DC=5... 7×50 B... Artyom Novichonok (Nam Cat Tien National Park, Vietnam)
2012 Mar. 01.25 TU m1=6.6, Dia.=4′, DC=5... 19-cm R f/13.9 (65x)... Isbel González González (Guayos, Sancti Spíritus, Cuba) [Método Beyer... Estrellas ref.: TYC 4187-894-1 (8.20) y TYC 4187-319-1 (9.24)... Polución lumínica... Altura sobre el horizonte: 30 grados... MALE instrumental: 12,5]
2012 Mar. 01.20 UT: m1=6.5, Dia.=10′, DC=3... 10×50 B... José J. Chambó (Vallés, Valencia, España) [Cat= Tycho2, Met= Sidgwick, VLMag= 4,7]
2012 Mar. 01.05 UT: m1=6.2, Dia.=10′, DC=7... Naked Eye... Juan José González (Puerto de Aralla, alt. 1530 m., León, España) [En 10x50B: Cola iónica de 1.3º en AP: 260º y cola de polvo de 0.5º en AP: 110º. Observación realizada bajo mejores condiciones, y desde mayor altitud, que en la previa de Feb. 20.93]
2012 Feb. 29.87 UT: m1=6.9, Dia.=15.5’±0.4′, DC=4... 7×50 B... Artyom Novichonok (Nam Cat Tien National Park, Vietnam)
2012 Feb. 28.82 UT: m1=6.7, Dia.=17.4’±0.8′, DC=4... 7×50 B... Artyom Novichonok (Nam Cat Tien National Park, Vietnam)
2012 Feb. 27.81 UT: m1=7.0, Dia.=15.5’±1.2′, DC=4... 7×50 B... Artyom Novichonok (Nam Cat Tien National Park, Vietnam)
2012 Feb. 24.46 UT: m1=6.8, Dia.=15’, DC=4... 10×50 B... Jorge Solano (San José Pinula, Guatemala)
2012 Feb. 22.81 UT: m1=7.0:, Dia.=14.0’±0.4′, DC=4... 7×50 B... Artyom Novichonok (Nam Cat Tien National Park, Vietnam)
2012 Feb. 20.93 UT: m1=7.0, Dia.=10′, DC=5, Tails= 0.2 deg to PA: 100 deg and 0.25 deg to PA: 300 deg ... 11-cm reflector (32x)... Vyacheslav Ivanov (Saratov, Russia)
2012 Feb. 20.93 UT: m1=6.6, Dia.=12′, DC=6, Tail= 1.4º in PA: 280º... 10×50 B... Juan José González (Alto del Trichero, alt. 1190 m., León, España) [Cola iónica de 1.4º en AP: 280º y cola de polvo de 0.4º en AP: 110º]
2012 Feb. 19.97 UT: m1=7.0, Dia.=10′, DC=5, Tails= 0.25 deg to PA 100 deg and 0.3 deg to PA 300 deg ... 11-cm reflector (32x)... Vyacheslav Ivanov (Saratov, Russia)
2012 Feb. 19.84 UT: m1=6.8, Dia.=14′, DC=4/... 7×50 B... Artyom Novichonok (Nam Cat Tien National Park, Vietnam)
2012 Feb. 19.45 UT: m1=6.5, Dia.=7′, DC=6/, Tail= not visible... 15-cm SCT (37x)... Salvador Aguirre (Hermosillo, Sonora, Mexico)
2012 Feb. 19.24 UT: m1=6.7, Dia.=8′, DC=5, Tail= 35′... 15-cm T(30x)... Carlos Labordena (Castellón, España)
2012 Feb. 19.22 UT: m1=6.5, Dia.=8′, DC=3... 10×50 B... José J. Chambó (Vallés, Valencia, España) [Cat=Tycho2, Met=Sidgwick, Mag”2=19,1 VLMag=4,8]
2012 Feb. 18.76 UT: m1=7.2, Dia.=5′, DC=5... 11-cm reflector (32x)... Vyacheslav Ivanov (Saratov, Russia)
2012 Feb. 17.24 UT: m1=6.7, Dia.=9′, DC=5, Tail= 35′... 20-cm SCT (50x)... Carlos Labordena (Castellón, España)
2012 Feb. 17.14 UT: m1=6.5, Dia.=8′, DC=4, Tail= 20′... 11×80 B... Carlos Labordena (Castellón, España)
2012 Feb. 14.42 UT: m1=6.5, Dia.=6′, DC=7, Tail= not visible... 25-cm Reflector (48x)... Salvador Aguirre (Hermosillo, Sonora, Mexico)
2012 Feb. 04.08 UT: m1=7.2, Dia.=6′, DC=4... 11-cm reflector (32x)... Vyacheslav Ivanove (Saratov, Russia)
2012 Feb. 03.24 UT: m1=7.1, Dia.=7′, DC=4... 20×60 B... José J. Chambó (Vallés, Valencia, España) [Cat=Tycho2, Met=Sidgwick, Mag”2=18,8 VLMag=4,6]
2012 Feb. 03.07 UT: m1=7.3, Dia.=5′, DC=5... 11-cm reflector (32x)... Vyacheslav Ivanov (Saratov, Russia)
2012 Jan. 31.01 UT: m1=7.3, Dia.=6′, DC=5... 11-cm reflector (32x)... Vyacheslav Ivanov (Saratov, Russia)
2012 Jan. 30.87 UT: m1=7.1, Dia.=15′, DC=6... 7×50 binoculars... Artyom Novichonok (Nam Cat Tien national park, Vietnam)
2012 Jan. 30.22 UT: m1=6.7, Dia.=7′, DC=4, Tail= 15′... 11×80 B... Carlos Labordena (Castellón, España)
2012 Jan. 30.22 UT: m1=6.9, Dia.=8′, DC=6, Tail= 30′... 20-cm T20 (50x)... Carlos Labordena (Castellón, España)
2012 Jan. 30.03 UT: m1=7.5:, Dia.=6′, DC=5... 11-cm reflector (32x)... Vyacheslav Ivanov (Saratov, Russia)
2012 Jan. 29.89 UT: m1=7.0, Dia.=16′, DC=6... 7×50 binoculars... Artyom Novichonok (Nam Cat Tien national park, Vietnam)
2012 Jan. 29.06 UT: m1=7.5:, Dia.=5′, DC=5... 11-cm reflector (32x)... Vyacheslav Ivanov (Saratov, Russia)
2012 Jan. 27.88 UT: m1=7.2, Dia.=13′, DC=6... 7×50 binoculars... Artyom Novichonok (Nam Cat Tien national park, Vietnam)
2012 Jan. 27.03 UT: m1=7.6, Dia.=6′, DC=5... 11-cm reflector (32x)... Vyacheslav Ivanov (Saratov, Russia)
2012 Jan. 26.01 UT: m1=7.3, Dia.=6′, DC=5... 11-cm reflector (32x)... Vyacheslav Ivanov (Saratov, Russia)
2012 Jan. 25.88 UT: m1=7.4, Dia.=12′, DC=6... 7×50 binoculars... Artyom Novichonok (Nam Cat Tien national park, Vietnam)
2012 Jan. 25.03 UT: m1=7.5, Dia.=4′, DC=5... 11-cm reflector (32x)... Vyacheslav Ivanov (Saratov, Russia)
2012 Jan. 24.05 UT: m1=7.5, Dia.=4′, DC=5... 11-cm reflector (32x)... Vyacheslav Ivanov (Saratov, Russia)
2012 Jan. 23.04 UT: m1=7.2, Dia.=6′, DC=5... 11-cm reflector (32x)... Vyacheslav Ivanov (Saratov, Russia)
2012 Jan. 22.05 UT: m1=7.5, Dia.=5′, DC=6... 11-cm reflector (32x)... Vyacheslav Ivanov (Saratov, Russia)
2012 Jan. 21.95 UT: m1=7.5, Dia.=12′, DC=5... 7×50 binoculars... Artyom Novichonok (Nam Cat Tien national park, Vietnam)
2012 Jan. 08.25 UT: m1=6.8, Dia.=7′, DC=5, Tail= 15′... 11×80 B... Carlos Labordena (Castellón, España)
2012 Jan. 08.24 UT: m1=7.0, Dia.=8′, DC=6, Tail= 20′... 20-cm SCT (50x)... Carlos Labordena (Castellón, España)
2011 Dec. 23.23 UT: m1=6.9, Dia.=7′, DC=4, Tail= 25′... 11×80 B... Carlos Labordena (Castellón, España)
2011 Dec. 22.77 UT: m1=6.8, Dia.=10′, DC=5/... 10×50 B... Juan José González (Collada del Fresno – Sierra del Aramo, 1221 m, Asturias, España) [Altura sobre el horizonte: 11º. Cielo muy claro de montaña]
2011 Dec. 07.25 UT: m1=6.7, Dia.=10′, DC=5/... 10×50 B... Juan José González (Alto del Castro – Aralla, alt. 1720 m., León, España) [La baja altitud, 8º al comienzo del crepúsculo astronómico, no permitió obtener con los binoculares 10×50 una satisfactoria toma de datos de la cola iónica]
2011 Dec. 06.24 UT: m1=7.2, Dia.=5′, DC=4, Tail= 20′... 11×80 B... Carlos Labordena (Castellón, España)
2011 Nov. 29.06 UT: m1=7.3, Dia.=6´, DC=7, Tail= visible ... 25-cm Reflector (48x)... Salvador Aguirre (Hermosillo, Sonora, Mexico)
2011 Nov. 26.78 UT: m1=6.9, Dia.=10′, DC=6, Tail= 0.8º en PA: 45º... 10×50 B... Juan José González (Alto del Castro – Aralla, alt. 1720 m., León, España) [La cola iónica se muestra menos brillante que en la observación previa, del 17 de Noviembre]
2011 Nov. 25.38 UT: m1=7.7, Dia.=7′, DC=7/... 40.0-cm L f/4.5 (36x)... Seiichi Yoshida (Gunma, Japan)
2011 Nov. 24.76 UT: m1=7.3, Dia.=6′, DC=4, Tail= 40′... 11×80 B... Carlos Labordena (Castellón, España)
2011 Nov. 24.38 UT: m1=7.8, Dia.=7′, DC=7... 40.0-cm L f/4.5 (36x)... Seiichi Yoshida (Gunma, Japan)
2011 Nov. 23.78 UT: m1=7.3, Dia.=4′, DC=2... 20×60 B... José J. Chambó (Vallés, Valencia, España) [Cat=Tycho2, Met=Sidgwick, Mag”2=18,8 VLMag=4,6]
2011 Nov. 23.06 UT: m1=6.8, Dia.=6´, DC=7, Tail= visible... 25-cm L (48x)... Salvador Aguirre (Hermosillo, Sonora, Mexico)
2011 Nov. 18.05 UT: m1=6.5, Dia.=6´, DC=6, Tail= visible... 15-cm Reflector (37x)... Salvador Aguirre (Hermosillo, Sonora, Mexico)
2011 Nov. 17.80 UT: m1=7.1, Dia.=9′, DC=6, Tail= 1.1º en PA: 50º... 10×50 B... Juan José González (Angliru – Sierra del Aramo, alt. 1540 m., Asturias, España) [La cola iónica se muestra más larga y brillante que en las observaciones previas]
2011 Nov. 01.937 UT: m1=7.2, Dia.=8′, DC=5/... 20X100 B... Marco Goiato (Araçatuba, Brasil) [Luar, altitude do cometa: 15º]
2011 Nov. 01.07 UT: m1=6.5, Dia.=8´, DC=5, Tail= visible... 15-cm Reflector (37x)... Salvador Aguirre (Hermosillo, Sonora, Mexico)
2011 Oct. 29.85 UT: m1=7.1, Dia.=8′, DC=6, Tail= 0.5º en PA: 110º... 10×50 B... Juan José González ( Puerto de Aralla, alt. 1490 m., León, España)
2011 Oct. 29.52 UT: m1=7.4, Dia.=6.1′, DC=4/... 20.0-cm L... M.-T. Hui (Canton, China) [severe city lights]
2011 Oct. 28.04 TU m1=7.8, Dia.=2.5′, DC=4... 19-cm R f/13.9 (70x)... Isbel González González (Guayos, Sancti Spíritus, Cuba) [Método Beyer... Altura: 28 grados]
2011 Oct. 26.93 UT: m1=7.5, Dia.=&4′, DC=4... 20×60 B... Willian Souza (Sao Paulo, Brazil)
2011 Oct. 26.08 TU m1=7.9, Dia.=2.5′, DC=4... 19-cm R f/13.9 (70x)... Isbel González González (Guayos, Sancti Spíritus, Cuba) [Método Beyer... Altura: 17 grados]
2011 Oct. 25.79 UT: m1=7.2, Dia.=8′, DC=5, Tail= 50′... 11×80 B... Carlos Labordena (Castellón, España)
2011 Oct. 24.75 UT: m1=7.8, Dia.=5′, DC=4, Tail= 0.4º en AP: 70º... 20×60 B... José J. Chambó (Vallés, Valencia, Espana) [VLMag=4,7]
2011 Oct. 22.93 UT: m1=7.5, Dia.=4´, DC=4... 18-cm L (57x)... Alexandre Amorim (Florianopolis, Brazil)
2011 Oct. 21.93 UT: m1=7.5, Dia.=4′, DC=5... 7-cm R (28x)... Alexandre Amorim (Florianopolis, Brazil)
2011 Oct. 21.09 UT: m1=6.5, Dia.=10´, DC=5/6, Tail= visible ... 15-cm Reflector (37x)... Salvador Aguirre (Hermosillo, Sonora, Mexico)
2011 Oct. 20.10 TU m1=8.2, Dia.=2.5′, DC=4... 19-cm R f/13.9 (70x)... Isbel González González (Guayos, Sancti Spíritus, Cuba) [Método Beyer... Altura: 15 grados]
2011 Oct. 18.41 UT: m1=7.3 ... 6×35 B... David A. J. Seargent (Cowra, NSW, Australia)
2011 Oct. 17.41 UT: m1=7.7 ... 25×100 B... David A. J. Seargent (Cowra, NSW, Australia) [AP:peared smaller and fainter, but was close to bright star]
2011 Oct. 16.94 UT: m1=7.5, Dia.=5′, DC=5... 7-cm R (28x)... Alexandre Amorim (Florianopolis, Brazil)
2011 Oct. 15.80 UT: m1=6.9, Dia.=10′, DC=6, Tail= 0.5º en AP: 110º... 10×50 B... Juan José González (Aralla, alt. 1360 m., León, España) [En 20 -cm SCT (77x): ancha cola en abanico, entre AP: 80º y 130º ].
2011 Oct. 15.40 UT: m1=6.9, Dia.=6... 25×100 B... David A. J. Seargent (Cowra, NSW, Australia)
2011 Oct. 10.46 UT: m1=7.5, Dia.=6′, DC=7... 40-cm L f/4.5 (36x)... Seiichi Yoshida (Gunma, Japan)
2011 Oct. 10.45 UT: m1=6.9, Dia.=12′, DC=5/... 10×70 R... Seiichi Yoshida (Gunma, Japan)
2011 Oct. 07.44 UT: m1=6.8, Dia.=12′, DC=6/... 10×70 R... Seiichi Yoshida (Gunma, Japan)
2011 Oct. 07.43 UT: m1=7.9, Dia.=5.8′, DC=7... 40-cm L f/4.5 (36x)... Seiichi Yoshida (Gunma, Japan)
2011 Oct. 05.93 UT: m1=7.2, DC=4... 7-cm R (28x)... Alexandre Amorim (Florianopolis, Brazil) [moonlight]
2011 Oct. 05.08 UT: m1=7.5, Dia.=6´, DC=6, Tail= visible... 15-cm Reflector (37x)... Salvador Aguirre (Hermosillo, Sonora, Mexico)
2011 Oct. 03.94 UT: m1=7.3, Dia.=4′, DC=3... 20×80 B... Willian Souza (Sao Paulo, Brazil)
2011 Sep. 30.93 UT: m1=6.8, Dia.=4′, DC=3/... 20×80 B... Willian Souza (Sao Paulo, Brazil)
2011 Sep. 29.93 UT: m1=7.5, Dia.=3′.5, DC=4... 7-cm R (28x)... Alexandre Amorim (Florianopolis, Brazil)
2011 Sep. 28.93 UT: m1=6.9, Dia.=4′, DC=4... 10×50 B... Alexandre Amorim (Florianopolis, Brazil)
2011 Sep. 27.94 UT: m1=7.2, Dia.=3′, DC=4... 7-cm R (28x)... Alexandre Amorim (Florianopolis, Brazil)
2011 Sep. 27.85 UT: m1=8.1, Dia.=6′, DC=3... 20×60 B... José J. Chambó (Vallés, Valencia, Espana) [VLMag=4,6]
2011 Set. 27.000 UT: m1=6.8, Dia.=10′, DC=4... 7X50 B... Marco Goiato (Araçatuba, Brasil)
2011 Sep. 26.92 UT: m1=6.9, Dia.=5′, DC=5... 10×50 B... Alexandre Amorim (Florianopolis, Brazil)
2011 Sep. 26.74 UT: m1=7.2, Dia.=10’, DC=7... 15×60 B... Mike Begbie (Harare, Zimbabwe) [Coma well condensed, and Bobrovnikoff Method used]
2011 Sep. 26.72 UT: m1=6.7, DC=9... unaided eye... Mike Begbie (Harare, Zimbabwe) [Observation made in a widespread power-cut. Naked eye limiting magnitude 7.0. Comet held with averted vision up to 30 seconds, direct vision up to 10 seconds. Coma AP:peared stellar]
2011 Sep. 25.83 UT: m1=7.4, Dia.=3′, DC=3... 20×60 B... José J. Chambó (Vallés, Valencia, Espana) [VLMag=4,6]
2011 Sep. 24.85 UT: m1=6.9, Dia.=10′, DC=5/... 10×50 B... Juan José González (Alto del Castro – Aralla, alt. 1720 m., León, España) [En 20-cm SCT (77x): Cola de 0.5º en AP: 110º]
2011 Sep. 22.93 UT: m1=6.9, Dia.=5′, DC=4... 10×50 B... Alexandre Amorim (Florianopolis, Brazil)
2011 Sep. 22.85 UT: m1=7.9, Dia.=7′, DC=3... 20×60 B... José J. Chambó (Vallés, Valencia, España) [VLMag=4,6]
2011 Sep. 22.39 UT: m1=7.5, Dia.=13’, DC=5... 7×50 B... Chris Wyatt (Walcha, NSW, Australia) [Faint tail to SE (P.A. 135) 26’ in length, best visible with averted vision, coma easy to find using direct vision, small central condensation. Comp Star= TYC 1573-546-1... Method= M... Cat= TJ]
2011 Sep. 21.84 UT: m1=7.9, Dia.=7′, DC=4... 20×60 B... José J. Chambó (Vallés, Valencia, España) [VLMag=4,7]
2011 Sep. 21.44 UT: m1=7.2, Dia,=4´, Tail= 0.2 degrees PA: 120 degrees ... 25×100 B... David A. J. Seargent (Cowra, NSW, Australia) [Tail faint and broad]
2011 Sep. 21.40 UT: m1=7.5, Dia.=18’, DC=5... 7×50 B... Chris Wyatt (Walcha, NSW, Australia] [No tail, background star at Eastern edge of coma, small but noticeable central condensation. Comp Star= TYC 1573-1437-1... Method= M... Cat= TJ]
2011 Sep. 20.94 UT: m1=7.7, Dia.=8′, DC=4... 20×60 B... José J. Chambó (Vallés, Valencia, España) [VLMag=4,8]
2011 Sep. 20.86 UT: m1=7.3, Dia.=8′, DC=5, Tail= 12′... 11×80 B... Carlos Labordena (Castellón, España)
2011 Set. 20.010 UT: m1=7.0, Dia.=8′, DC=6, Tail= 20′ in PA: 100 deg ... 20X100 B... Marco Goiato (Araçatuba, Brasil)
2011 Set. 20.000 UT: m1=6.8, Dia.=9′, DC=4... 7X50 B... Marco Goiato (Araçatuba, Brasil)
2011 Sep. 19.89 UT: m1=6.7, Dia.=12′, DC=5/... 10×50 B... Juan José González (Alto del Castro – Aralla, alt. 1720 m., León, España) [En 20 -cm SCT (77x): Cola de 0.5º en AP: 110º]
2011 Sep. 19.88 UT: m1=7.1, Dia.=10′, DC=6... 20×50 B... Alfons Diepvens (Balen, Belgium)
2011 Sep. 19.01 UT: m1=7.0, Dia.=6′, DC=4/... 20×80 B... Willian Souza (Sao Paulo, Brazil)
2011 Sep. 18.948 UT: m1=6.9, Dia.=8′, DC=4... 7X50 B... Marco Goiato (Araçatuba, Brasil)
2011 Sep. 17.44 UT: m1=7.1, Dia.=6´... 25×100 B... David A. J. Seargent (Cowra, NSW, Australia)
2011 Sep. 17.43 UT: m1=8.1, Dia.=17’, DC=4... 7×50 B... Chris Wyatt (Walcha, NSW, Australia) [Central condensation noticeable, no tail, AP:peared slightly elongated to SE. Comp Star= TYC 1587-696-1... Method= M... Cat= TJ]
2011 Sep. 17.11 UT: m1=7.0, Dia,=4/5´, DC=5, Tail= not visible... 15--cm L (37x)... Salvador Aguirre (Hermosillo, Sonora, Mexico)
2011 Sep. 15.39 UT: m1=8.1, Dia.=8’, DC=4... 7×50 B... Chris Wyatt (Walcha, NSW, Australia) [No tail. Comp Star= TYC 1587-696-1... Method= M... Cat= TJ]
2011 Set. 14.958 UT: m1=7.0, Dia.=7′, DC=4/... 20×100 B... Marco Goiato (Araçatuba, Brasil)
2011 Sep. 14.39 UT: m1=8.4, Dia.=5’, DC=5... 25-cm L f:5 (39x)... Chris Wyatt (Walcha, NSW, Australia) [Tail 13’ in length in P.A. 160, slight faint elongation to NW. Comp Star= TYC 1592-953-1... Method= M... Cat= TJ]
2011 Sep. 14.37 UT: m1=7.9, Dia.=10’, DC=3... 7×50 B... Chris Wyatt (Walcha, NSW, Australia) [Observation made difficult with bright stars in proximity to comet, no tail, bright inner coma. Comp Star= TYC 1588-1028-1... Method= S... Cat= TJ]
2011 Sep. 14.1181 UT: m1=7.0, Dia.=4´, DC=5, Tail= not visible... 25-cm Reflector (48x)... Salvador Aguirre (Hermosillo, Sonora, Mexico)
2011 Sep. 13.95 UT: m1=7.1, Dia.=3′, DC=4... 7-cm R (28x)... Alexandre Amorim (Florianopolis, Brazil) [moonlight]
2011 Sep. 13.38 UT: m1=8.1, Dia.=6’, DC=5... 25-cm L f:5 (39x)... Chris Wyatt (Walcha, NSW, Australia) [Tail to SSE, 6’ in length. Central condensation small but bright, very faint and tenuous elongation to NW. Tail visible using averted vision, coma enhances in Swan Band filter but tail does not enhance. Comp Star= TYC 1587-696-1... Method= M... Cat= TJ]
2011 Sep. 12.93 UT: m1=7.2, Dia.=4′, DC=4... 10×50 B... Alexandre Amorim (Florianopolis, Brazil) [moonlight]
2011 Sep. 11.37 UT: m1=8.6, Dia.=3.5’, DC= 5... 25-cm L f:5 (39x)... Chris Wyatt (Walcha, NSW, Australia) [Central condensation small, outer coma large and faint, elongated to SSE, no tail visible, moonlight affected. Comp Star= TYC 1589-553-1... Method= M... Cat= TJ]
2011 Sep. 10.99 UT: m1=7.2, Dia.=5′, DC=4... 10×50 B... Alexandre Amorim (Florianopolis, Brazil) [moonlight]
2011 Sep. 08.06 UT: m1=7.2... 20×80 B... Willian Souza (Sao Paulo, Brazil) [moonlight interference]
2011 Sep. 07.04 UT: m1=6.8, Dia.=10′, DC=5/... 10×50 B... Juan José González (Alto del Castro – Aralla, alt. 1720 m., León, España) [En 20-cm SCT (77x): Cola de 0.5º en AP: 120º]
2011 Sep. 06.37 UT: m1=7.6, Dia.=4’... DC=5... 25-cm L f:5 (39x)... Chris Wyatt (Walcha, NSW, Australia) [Central condensation not stellar but small and compact, gradually fading of inner coma to edge, faint tail to SSE using averted vision. Comp Star= TYC 1607-146-1... Method= M... Cat= TJ]
2011 Sep. 06.10 UT: m1=7.0, Dia.=6′, DC=4... 20×60 B... Willian Souza (Sao Paulo, Brazil)
2011 Set. 05.146 UT: m1=7.0, Dia.=10′, DC=4... 7×50 B... Marco Goiato (Araçatuba, Brasil)
2011 Sep. 04.97 UT: m1=7.2, Dia.=5′, DC=4... 10×50 B... Alexandre Amorim (Florianopolis, Brazil) [moonlight]
2011 Sep. 04.95 UT: m1=7.0, Dia.=10′, DC=5... 20×60 B... Willian Souza (Maresias, Brazil)
2011 Sep. 03.95 UT: m1=6.9, Dia.=10′, DC=5... 20×60 B... Willian Souza (Maresias, Brazil) [Tail of 20´ suspected in PA 110deg.]
2011 Sep. 03.93 UT: m1=6.8, Dia.=10′, DC=5... 11.0-cm reflector (32x)... Vyacheslav Ivanov (Saratov, Russia)
2011 Sep. 03.08 UT: m1=7.1, Dia.=6′, DC=4... 20×60 B... Willian Souza (Sao Paulo, Brazil)
2011 Sep. 03.03 UT: m1=7.2, Dia.=10′, DC=6... 10×50 B... Juan José Gonzalez (Pandorado, alt. 1190 m., León, España) [En 20-cm SCT (77x): m1=7.5, cola de 0.4º en AP: 120º]
2011 Sep. 03.03 UT: m1=7.0, Dia.=6′, DC=4... 10×50 B... Alexandre Amorim (Florianopolis, Brazil)
2011 Sep. 02.94 UT: m1=6.8, Dia.=6′, DC=4, Tail= 10′ in PA: 10 deg ... 20×60 B... José J. Chambó (Vallés, Valencia, España) [cielo suburbano, transparencia muy buena]
2011 Sep. 02.79 UT: m1=7.5, Dia.=6′, DC=4... 11.0-cm reflector (32x)... Vyacheslav Ivanov (Saratov, Russia)
2011 Sep. 02.37 UT: m1=7.9, Dia.=5’, DC= 5/6... 25-cm L f:5 (39x)... Chris Wyatt (Walcha, NSW, Australia) [Tail to SSE, 15’ in length, background stars in coma, moonlight affected, central condensation not quite stellar but compact and diffuse. Tail visible using averted vision, outer coma enhances well with Swan band filter. Comp Star= TYC 1608-447-1... Method= M... Cat= TJ]
2011 Set. 02.041 UT: m1=7.2, Dia.=8′, DC=4... 7×50 B... Marco Goiato (Araçatuba, Brasil)
2011 Sep. 01.94 UT: m1=7.2, Dia.=6′, DC=5... 10×50 B... Alexandre Amorim (Florianopolis, Brazil)
2011 Sep. 01.75 UT: m1=7.5, Dia.=5′, DC=3... 11.0-cm reflector (32x)... Vyacheslav Ivanov (Saratov, Russia)
2011 Sep. 01.45 UT: m1=7.1, Dia.=6´... 10×50 B... David A. J. Seargent (The Entrance, NSW, Australia)
2011 Sep. 01.10 UT: m1=7.2, Dia.=6′, DC=3... 20×60 B... Willian Souza (Sao Paulo, Brazil)
2011 Sep. 01.02 UT: m1=7.2, Dia.=7′, DC=5... 10×50 B... Alexandre Amorim (Florianopolis, Brazil)
2011 Set. 01.000 UT: m1=7.2, Dia.=8′, DC=4... 7×50 B... Marco Goiato (Araçatuba, Brasil)
2011 Aug. 31.97 UT: m1=7.0, Dia.=10′, DC=5... 25.4-cm reflector (60x)... Vyacheslav Ivanov (Melovoe, Russia)
2011 Aug. 30.89 UT: m1=7.1, Dia.=10′, DC=7... 20×50 B... Alfons Diepvens (Fécamp, France)
2011 Aug. 30.76 UT: m1=7.5, Dia.=5′, DC=3... 11.0-cm reflector (32x)... Vyacheslav Ivanov (Saratov, Russia)
2011 Aug. 30.04 UT: m1=7.2, Dia.=6′, DC=3... 20×80 B... Willian Souza (Sao Paulo, Brazil)
2011 Aug. 29.85 UT: m1=7.0, Dia.=10′, DC=5... 20.3-cm reflector (60x)... Vyacheslav Ivanov (Saratov, Russia)
2011 Aug. 29.10 UT: m1=7.2, Dia.=6′, DC=4... 20×80 B... Willian Souza (Sao Paulo, Brazil)
2011 Aug. 28.958 UT: m1=7.5, Dia.=7′, DC=3/... 7×50 B... Marco Goiato (Araçatuba, Brasil) [nebulosidade]
2011 Aug. 28.91 UT: m1=7.0, Dia=10′, DC=6, 20×50 B... Alfons Diepvens (Balen, Belgium)
2011 Aug. 28.78 UT: m1=7.3, Dia.=8′, DC=5... 11.0-cm reflector (32x)... Vyacheslav Ivanov (Saratov, Russia)
2011 Aug. 28.57 UT: m1=7.2... 10×50 B... David A. J. Seargent (The Entrance, NSW, Australia)
2011 Aug. 28.08 UT: m1=7.2, Dia.=6′, DC=4... 20×80 B... Willian Souza (Sao Paulo, Brazil)
2011 Aug. 27.94 UT: m1=7.4, Dia.=8, DC=4... 7×50 B... José Carvajal (Avila, España)
2011 Aug. 27.84 UT: m1=7.5, Dia.=7′, DC=5... 11.0-cm reflector (32x)... Vyacheslav Ivanov (Saratov, Russia)
2011 Aug. 27.44 UT: m1=8.3, Dia.=3′, DC=7... 20.0-cm T f/10 (80x)... Seiichi Yoshida (Niigata, Japan)
2011 Aug. 27.00 UT: m1=7.0, Dia.=9′, DC=5/... 10×50 B... Juan José González (Alto del Castro – Aralla, alt. 1720 m., León, España) [En 20-cm SCT (77x): m1=7.5, cola de 0.5º en AP: 130º]
2011 Aug. 26.79 UT: m1=7.5, Dia.=6′, DC=5... 11.0-cm reflector (32x)... Vyacheslav Ivanov (Saratov, Russia)
2011 Aug. 26.50 UT: m1=7.7, Dia.=6.5’, DC=4... 7×50 B... Chris Wyatt (Walcha, NSW, Australia) [Coma small, tail not visible, central condensation noticeable as a gradual brightening to centre, not stellar but small intensely condensed spot. Comp Star= TYC 1616-2512-1... Method= M... Cat= TJ
2011 Aug. 26.062 UT: m1=7.5, Dia.=7′, DC=3/... 7×50 B... Marco Goiato (Araçatuba, Brasil)
2011 Aug. 25.83 UT: m1=7.1, Dia.=10′, DC=5... 5-cm refractor (9x)... Vyacheslav Ivanov (Melovoe, Russia)
2011 Aug. 25.65 UT: m1=7.0, Dia.=10.6′, DC=6, Tail= 26′ in PA: 145°... 20-cm L f/5... Man-To Hui (Canton, China) [city lights]
2011 Aug. 25.55 UT: m1=7.2, Dia.=4´, DC=6, Tail= 0.2 degrees in PA= 140 degrees ... 25×100 B... David A. J. Seargent (Cowra, NSW, Australia)
2011 Aug. 25.49 UT: m1=8.3, Dia.=4.5’, DC=6... 25-cm L f:5 (39x)... Tail to P.A. 160 (SSE)... Chris Wyatt (Walcha, NSW, Australia) [Coma large, bright inner coma with small central condensation. Tail faint but noticeable, coma enhances with Swan Band filter but tail does not. Comp Star= TYC 1621-260-1... Method= S... Cat= TJ
2011 Aug. 24.95 UT: m1=7.1, Dia=8′, DC=6... 20×50 B... Alfons Diepvens (Balen, Belgium)
2011 Aug. 24.50 UT: m1=7.8, Dia.=4.7’, DC=6... 25-cm L f:5 (39x)... Chris Wyatt (Walcha, NSW, Australia) [Central condensation small but bright, outer coma thinly veiled, glow around central condensation sweeps into the faint tail and AP:pears “tear drop” shAP:ed. Edge of outer coma falling back and fanning out, 13’ in length to SSE, tail best visible using averted vision. Comp Star= TYC 1621-78-1... Method= M... Cat= TJ
2011 Aug. 24.083 UT: m1=7.6, Dia.=7′, DC=4... 7×50 B... Marco Goiato (Araçatuba, Brasil)
2011 Aug. 23.84 UT: m1=7.7, Dia.=5′, DC=5... 25.4 -cm reflector (60x)... Vyacheslav Ivanov (Melovoe, Russia)
2011 Aug. 23.53 UT: m1=7.2... 6×35 B... David A. J. Seargent (Cowra, NSW, Australia)
2011 Aug. 22.66 UT: m1=7.1, Dia.=9.4′, DC=5, Tail= 0.4° in PA: 150°... 20-cm L f/5... Man-To Hui (Canton, China) [city lights]
2011 Aug. 22.104 UT: m1=7.7, Dia.=3.3’, DC=6, Tail= 6’ in AP: 140°... 12.5-cm SC f/10 (50x)... Rodolfo Ferraiuolo (Sierra Pintada, San Rafael, Mendoza, Argentina) [Condensación central brillante]
2011 Aug. 21.96 UT: m1=7.1, Dia.=8′, DC=6... 20×50 B... Alfons Diepvens (Balen, Belgium)
2011 Aug. 21.38 UT: m1=7.1... 25×100 B... David A. J. Seargent (Cowra, NSW, Australia) [Tail quite bright for first 5 min. AP:prox.]
2011 Aug. 21.09 UT: m1=7.8, Dia.=8’, DC=5, Tail= not visible... 20-cm SCT (40x)... Alberto Anunziato (Oro Verde, Argentina) [Mét.: Sidgwick, Cat.: Tycho II]
2011 Aug. 20.95 UT: m1=7.5, Dia.=4′... 10×50 B... Alexandre Amorim(Florianopolis,Brazil)
2011 Aug. 20.91 UT: m1=7.5, Dia.=7′, DC=5... 11.0-cm reflector (32x)... Vyacheslav Ivanov (Saratov, Russia)
2011 Aug. 19.95 UT: m1=7.3, Dia.=8′, DC=6... 20×50 B... Alfons Diepvens (Balen, Belgium)
2011 Aug. 19.61 UT: m1=7.4, Dia.=9′.1, DC=6, Tail= 15′ in PA: 150 deg ... 20.0-cm reflector... M.-T. Hui (Canton, China) [a mag 10.8 star extremely close to the pseudonucleus, city lights, thin clouds]
2011 Aug. 19.48 UT: m1=7.9, Dia.=6′, DC=6... 25×100 B... Michael Mattiazzo (Castlemaine, Victoria, Australia) [Tycho 2 VT comparison stars]
2011 Aug. 19.44 UT: m1=7.3, Dia.=4´... DC=5... Tail= 0.3 degrees in PA: 138 deg ... 25×100 B... David A. J. Seargent (Cowra, NSW, Australia) [Slightly fainter through Swan Band filter]
2011 Aug. 19.042 UT: m1=7.8, Dia.=8′, DC=4... 7×50 B... Marco Goiato (Araçatuba, Brasil)
2011 Aug. 17.55 UT: m1=7.5, Dia.=8′.9, DC=6... 20.0-cm reflector... M.-T. Hui (Canton, China) [city lights, thin clouds]
2011 Aug. 17.04 UT: m1=7.8, Dia.=5′, DC=4... 20×80 B... Willian Souza (Sao Paulo, Brazil)
2011 Aug. 16.96 UT: m1=7.7... 7-cm R (28x)... Alexandre Amorim (Florianopolis, Brazil)
2011 Aug. 16.958 UT: m1=7.9, Dia.=8′, DC=5... 20×100 B... Marco Goiato (Araçatuba, Brasil)
2011 Aug. 16.51 UT: m1=7.4, Dia.=9′, DC=5... 20×80 B... Artyom Novichonok (Nam Cat Tien National Park, Vietnam)
2011 Aug. 16.38 UT: m1=7.5... 25×100 B... David A. J. Seargent (Cowra, NSW, Australia) [Approximate estimate. Brief observation with comet at low elevation]
2011 Aug. 16.06 UT: m1=7.8:... 20×80 B... Willian Souza (Sao Paulo, Brazil) [Moonlight interference]
2011 Aug. 14.10 UT: m1=7.6, Dia.=5′, DC=4... 20×80 B... Willian Souza (Sao Paulo, Brazil) [Moonlight interference]
2011 Aug. 13.10 UT: m1=7.6, Dia.=6′, DC=4... 20×80 B... Willian Souza (Sao Paulo, Brazil) [Moonlight interference]
2011 Aug. 12.96 UT: m1=7.8, Dia.=5′, DC=5... 11.0-cm reflector (32x)... Vyacheslav Ivanov (Saratov, Russia)
2011 Aug. 12.96 UT: m1=8.1, Dia.=3′, DC=6... 18-cm L (57x)... Alexandre Amorim (Florianopolis, Brazil) [moonlight]
2011 Aug. 12.56 UT: m1=7.6, Dia.=6´... 25×100 B... David A. J. Seargent (Cowra, NSW, Australia) [Comet readily visible despite bright moonlight]
2011 Aug. 09.92 UT: m1=7.7, Dia.=5′, DC=4... 25.4-cm reflector (60x)... Vyacheslav Ivanov (Saratov, Russia)
2011 Aug. 09.73 UT: m1=8.5, Dia.=4.2′, DC=7/... 40-cm L f/4.5 (36x)... Seiichi Yoshida (Gunma, Japan)
2011 Aug. 08.78 UT: m1=7.7, Dia.=7′, DC=5... 20.0-cm reflector (60x)... Vyacheslav Ivanov (Saratov, Russia)
2011 Aug. 08.25 UT: m1=7.7, Dia.=5′, DC=5/... 20×80 B... Willian Souza (Sao Paulo, Brazil)
2011 Aug. 08.12 UT: m1=7.7, Dia.=10′, DC=5/... 10×50 B... Juan José González (Pandorado, alt. 1190 m., León, España) [En 20 -cm SCT (77x): m1=8.1, cola en abanico entre AP: 150º y 200º, 0.4º en AP: 170º]
2011 Aug. 08.135 UT: m1=7.8, Dia.=8′, DC=5... 20×100 B... Marco Goiato (Araçatuba, Brasil) [Luar]
2011 Aug. 08.146 UT: m1=7.6, Dia.=10′, DC=4... 7×50 B... Marco Goiato (Araçatuba, Brasil) [Luar]
2011 Aug. 08.04 UT: m1=8.1, Dia.=4′, DC=5... 18-cm L (57x)... Alexandre Amorim (Florianopolis, Brazil) [moonlight and nebulosity]
2011 Aug. 07.87 UT: m1=8.0, Dia.=5′, DC=4... 25.4-cm reflector (60x)... Vyacheslav Ivanov (Saratov, Russia)
2011 Aug. 07.51 UT: m1=7.6, Dia.=9′, DC=5, Tail= 0.2′ in PA: 160 deg ... 20×80 B... Artyom Novichonok (Nam Cat Tien National Park, Vietnam)
2011 Aug. 07.17 UT: m1=7.8, Dia.=7′, DC=5... 20×80 B... Willian Souza (Sao Paulo, Brazil)
2011 Aug. 07.06 UT: m1=7.7, Dia.=4′, DC=6... 10×50 B... Alexandre Amorim (Florianopolis, Brazil) [moonlight and nebulosity]
2011 Aug. 06.99 UT: m1=7.6, Dia=10′, DC=4... 7×50 B... Toni Scarmato (Calabria, Italy)
2011 Aug. 06.95 UT: m1=7.7, Dia.=5′, DC=4... 25.4-cm reflector (60x)... Vyacheslav Ivanov (Melovoe, Russia)
2011 Aug. 06.95 UT: m1=7.5, Dia.=10′, DC=4... 9×50 monoculars... Vyacheslav Ivanov (Melovoe, Russia)
2011 Aug. 06.12 UT: m1=7.8, Dia.=7′, DC=4... 20×80 B... Willian Souza (Sao Paulo, Brazil)
2011 Aug. 06.03 UT: m1=7.7, Dia.=4′, DC=6... 10×50 B... Alexandre Amorim (Florianopolis, Brazil)
2011 Aug. 06.01 UT: m1=7.5, Dia=10′, DC=4... 7×50 B... Toni Scarmato (Calabria, Italy)
2011 Aug. 05.10 UT: m1=7.8, Dia.=5′, DC=6... 10×50 B... Alexandre Amorim (Florianopolis, Brazil)
2011 Aug. 05.08 UT: m1=8.0, Dia.=7′, DC=4... 20×80 B... Willian Souza (Sao Paulo, Brazil)
2011 Aug. 04.14 UT: m1=7.9, Dia.=8′, DC=5/... 10×50 B... Juan José González (Alto del Castro – Aralla, alt. 1720 m., León, España) [En 20 -cm SCT (77x): m1=8.3, cola en abanico entre AP: 160º y 200º, 0.4º en AP: 180º]
2011 Aug. 04.125 UT: m1=8.1, Dia.=8′, DC=5... 20×100 B... Marco Goiato (Araçatuba, Brasil)
2011 Aug. 04.03 UT: m1=7.7, Dia.=5′, DC=6... 10×50 B... Alexandre Amorim (Florianopolis, Brazil)
2011 Aug. 03.60 UT: m1=7.9, Dia.=8′, DC=4/, Tail= 0.3′ in PA: 190 deg ... 20×80 B... Artyom Novichonok (Nam Cat Tien National Park, Vietnam)
2011 Aug. 03.53 UT: m1=8.3, Dia.=5′, DC=6... 25×100 B... Michael Mattiazzo (Castlemaine, Victoria) [Tycho 2 VT comparison stars. Short tail directed in PA180. M15 in same field of view]
2011 Aug. 03.10 UT: m1=8.0, Dia.=7′, DC=5... 20×80 B... Willian Souza (Sao Paulo, Brazil)
2011 Aug. 03.08 UT: m1=8.3, Dia.=9′, DC=6, Tail= 12′... 23.5-cm SCT (67x)... Carlos Labordena (Castellón, España)
2011 Aug. 03.07 UT: m1=8.0, Dia.=8′, DC=5, no tail... 11×80 B... Carlos Labordena (Castellón, España)
2011 Aug. 03.07 UT: m1=8.0, Dia.=5′, DC=5/... 10×50 B... Alexandre Amorim (Florianopolis, Brazil)
2011 Aug. 02.81 UT: m1=7.9, Dia.=6.8′, DC=5/... 20-cm reflector ... M.-T. Hui (Canton, China) [city lights]
2011 Aug. 02.64 UT: m1=8.2, Dia.=7.0′, DC=4/, Tail= 0.3′ in PA: 190 deg ... 20×80 B... Artyom Novichonok (Nam Cat Tien National Park, Vietnam)
2011 Aug. 02.02 UT: m1=7.8, Dia=10′, DC=4... 7×50 B... Toni Scarmato (Calabria, Italy)
2011 Aug. 01.81 UT: m1=8.0, Dia.=6.9´, DC=6... 20.0-cm L (30x)... M.-T. Hui (Canton, China) [southward broad fan tail... city lights... smog]
2011 Ago. 01.00 UT: m1=8.1, Dia.=10′, DC=5/... 10×50 B... Juan José González (Alto del Castro – Aralla, alt. 1720 m., León, España) [En 20-cm SCT (77x): m1=8.4, cola en abanico entre AP: 160º y 210º, 0.4º en AP: 190º]
2011 July 31.13 UT: m1=8.1, Dia.=8.5′, DC=5... 7×10 B... José Carvajal (Madrid, España) [Método: M, Cat: TI]
2011 July 30.97 UT: m1=8.3, Dia.=8′, DC=6, Tail= 10′... 23.5-cm SCT (67x)... Carlos Labordena (Castellón, España
2011 July 30.96 UT: m1=8.1, Dia.=7′, DC=5, no tail... 11×80 B... Carlos Labordena (Castellón, España)
2011 July 30.92 UT: m1=8.5, Dia.=4′, DC=4... 11-cm reflector (32x)... Vyacheslav Ivanov (Saratov, Russia)
2011 July 30.271 UT: m1=8.2, Dia.=7′, DC=4/... 20×100 B... Marco Goiato (Araçatuba, Brasil) [Nuvens]
2011 July 29.92 UT: m1=8.5, Dia.=4′, DC=4... 11-cm reflector (32x)... Vyacheslav Ivanov (Saratov, Russia)
2011 July 29.59 UT: m1=8.5, Dia.=4’, DC=5/6... 25-cm L f:5 (39x)... Chris Wyatt (Walcha, NSW, Australia) [Broad faint tail to SSE, 7’ in length, central condensation not quite stellar but is small and bright, bright star at edge of coma. Fainter halo around central condensation, spreads and fades into surrounding coma. Comp Star= TYC 267-273-1... Method= S... Cat= TJ]
2011 July 29.01 UT: m1=8.1, Dia.=9′, DC=4... 7×10 B... José Carvajal (Madrid, España) [Método: M, Cat: TI]
2011 July 28.92 UT: m1=8.1, Dia.=6′, DC=5... 13-cm reflector (65x)... Danil Sidorko (Korenovsk, Russia)
2011 July 28.55 UT: m1=8.5, Dia.=4.1’, DC=6... 25-cm L f:5 (39x)... Chris Wyatt (Walcha, NSW, Australia) [Coma elongated to SSW, broad tail AP:prox 4’ in length, fainter veil-like extremities. Enhances slightly with Swan Band filter. Comp Star= TYC 1126-185-1... Method= S... Cat= TJ]
2011 July 28.23 UT: m1=8.2, Dia.=5′, DC=5... 20×80 B... Willian Souza (Sao Paulo, Brazil)
2011 July 28.01 UT: m1=8.3, Dia.=8′, DC=4... 7×10 B... José Carvajal (Madrid, España) [Método: M, Cat: TI]
2011 July 27.98 UT: m1=8.1, Dia.=9′, DC=5/... 10×50 B... Juan José González (Alto del Castro – Aralla, alt. 1720 m., León, España) [En 20-cm SCT (77x): m1=8.5, cola en abanico entre AP: 160º y 210º, 0.2º en AP: 200º]
2011 July 27.91 UT: m1=8.2, Dia.=7′, DC=4... 25-cm reflector (60x)... Vyacheslav Ivanov (Saratov, Russia)
2011 July 27.91 UT: m1=8.0, Dia.=10′, DC=4... 5-cm refractor (60x)... Vyacheslav Ivanov (Saratov, Russia)
2011 July 27.79 UT: m1=8.2, Dia.=8.0´, DC=6... 20.0-cm L (30x)... M.-T. Hui (Canton, China) [southward broad fan tail... city lights]
2011 July 27.30 UT: m1=8.2, Dia.=5′, DC=5... 20×80 B... Willian Souza (Sao Paulo, Brazil)
2011 July 27.09 UT: m1=8.2, Dia.=5′, DC=5/... 10×50 B... Alexandre Amorim (Florianopolis, Brazil)
2011 July 26.79 UT: m1=8.3, Dia.=9.4´, DC=5/... 20.0-cm L (30x)... M.-T. Hui (Canton, China) [southward broad fan tail... city lights]
2011 July 26.30 UT: m1=8.3, Dia.=5′, DC=6... 11×80 B... Willian Souza (Sao Paulo, Brazil)
2011 July 26.14 UT: m1=8.4, Dia.=5′, DC=5... 20×60 B... Willian Souza (Sao Paulo, Brazil)
2011 July 26.13 UT: m1=8.1, Dia.=8′, DC=4... 7×10 B... José Carvajal (Madrid, España) [Método: M, Cat: TI]
2011 July 26.125 UT: m1=8.2, Dia.=7′, DC=5... 20×100 B... Marco Goiato (Araçatuba, Brasil) [nuvens]
2011 July 26.104 UT: m1=8.3, Dia.=7′, DC=5... 20×100 B... Marco Goiato (Araçatuba, Brasil)
2011 July 24.81 UT: m1=8.3, Dia.=6′.5, DC=5/... 20.0-cm L (30x)... M.-T. Hui (Canton, China) [moonlight, city lights, smog]
2011 July 24.167 UT: m1=8.4, Dia.=6′, DC=4/... 20×100 B... Marco Goiato (Araçatuba, Brasil)
2011 July 23.97 UT: m1=8.4, Dia.=7′, DC=5, no tail... 11×80 B... Carlos Labordena (Castellón, España)
2011 July 23.83 UT: m1=8.4, Dia.=8′.1, DC=5... 20.0-cm L (30x)... M.-T. Hui (Canton, China) [southward broad fan tail, moonlight, city lights]
2011 July 23.208 UT: m1=8.5, Dia.=6′, DC=4/... 20×100 B... Marco Goiato (Araçatuba, Brasil) [Nuvens]
2011 July 23.08 UT: m1=8.4, Dia=5′, DC=6/... 10×50 B... Alexandre Amorim (Florianopolis, Brazil)
2011 July 22.95 UT: m1=8.2, Dia.=8′, DC=5/... 25×100 B... Juan José González (Pandorado, alt. 1190 m., León, España)
2011 July 22.91 UT: m1=8.7, Dia.=2′, DC=4... 20×50 B... Alfons Diepvens (Balen, Belgium)
2011 July 22.83 UT: m1=8.4, Dia.=7.1′, DC=6... 20-cm L (30x)... M.-T. Hui (Canton, China) [moonlight... city lights... heavy dew]
2011 July 21.95 UT: m1=8.9, Dia.=6′, DC=5, Tail= 7′... 20-cm SCT (50x)... Carlos Labordena (Castellón, España)
2011 July 21.94 UT: m1=8.7, Dia.=6′, DC=4, no tail... 11×80 B... Carlos Labordena (Castellón, España)
2011 July 17.14 UT: m1=8.6, Dia.=3′, DC=5... 18-cm L (57x)... Alexandre Amorim (Florianopolis, Brazil) [moonlight interference]
2011 July 14.84 UT: m1=8.5, Dia.=6′, DC=5... 20-cm L (30x)... M.-T. Hui (Canton, China) [Ci clouds... strong moonlight... city lights]
2011 July 12.12 UT: m1=9.1, Dia.=5′, DC=5, Tail= 5′... 20-cm SCT (50x)... Carlos Labordena (Castellón, España)
2011 July 12.11 UT: m1=8.9, Dia.=6′, DC=4, no tail... 11×80 B... Carlos Labordena (Castellón, España)
2011 July 10.354 UT: m1=8.9, Dia.=5′, DC=4... 20×100 B... Marco Goiato (Araçatuba, Brasil)
2011 July 10.17 UT: m1=9.0... 18-cm L (50x)... Alexandre Amorim (Florianopolis, Brazil)
2011 July 09.96 UT: m1=8.5, Dia.=4.5′, DC=6... 13-cm reflector (65x)... Danil Sidorko (Korenovsk, Russia)
2011 July 09.16 UT: m1=8.6, Dia.=4′, DC=5... 7.6-cm L (33x)... Alexandre Amorim (Florianopolis,Brazil)
2011 July 07.96 UT: m1=8.7, Dia.=4′, DC=6... 13-cm reflector (65x)... Danil Sidorko (Korenovsk, Russia)
2011 July 07.59 UT: m1=8.8, Dia.=4´... 25×100 B... David A. J. Seargent (Cowra, NSW, Australia)
2011 July 07.38 UT: m1=9.0: ... 7.6-cm L (33x)... Alexandre Amorim (Florianopolis, Brazil) [clouds interference]
2011 July 06.96 UT: m1=8.7, Dia.=4.5′, DC=6... 13-cm reflector (65x)... Danil Sidorko (Korenovsk, Russia)
2011 July 06.37 UT: m1=8.8, Dia.=3′, DC=6... 7.6-cm L (33x)... Alexandre Amorim (Florianopolis, Brazil)
2011 July 05.99 UT: m1=9.6 CCD, Dia.=2.1′, DC=7... 25-cm L + CCD unfilter... Toni Scarmato (Calabria, Italia)
2011 July 05.37 UT: m1=8.9, Dia.=4′, DC=5... 7.6-cm L (33x)... Alexandre Amorim (Florianopolis, Brazil)
2011 July 05.09 UT: m1=8.6, Dia.=6′, DC=5/... 25×100 B... Juan José González (Alto del Castro – Aralla, alt. 1720 m., León, España) [En 20 -cm SCT (77x): m1=8.8, cola en abanico, 0.2º en AP: 240º]
2011 July 03.98 UT: m1=8.8, Dia.=4′, DC=6... 13-cm reflector (65x)... Danil Sidorko (Korenovsk, Russia)
2011 July 03.21 UT: m1=9.5, Dia.=1.75’, DC=2, Tail= not visible... 20-cm SCT (32x)... Alberto Anunziato (Oro Verde, Argentina) [Mét. Sidgwick, Cat. Tycho II]
2011 July 01.12 UT: m1=8.7, Dia.=6′, DC=6... 10×50 B... Juan José González (Alto del Castro – Aralla, alt. 1720 m., León, España) [En 20-cm SCT (77x): m1=8.9, cola en abanico entre AP: 170º y 240º]
2011 June 28.36 UT: m1=9.0, Dia.=4′, DC=7... 7.6-cm L (33x)... Alexandre Amorim (Florianopolis, Brazil)
2011 June 27.123 UT: m1=9.4, Dia.=3.5´, DC=5/, Tail= not visible... 25-cm Reflector (48x)... Salvador Aguirre (Hermosillo, Sonora, Mexico)
2011 June 26.77 UT: m1=10.6, Dia.=2.5’, DC= 6... 25-cm L f:5 (39x)... Chris Wyatt (Walcha, NSW, Australia) [Coma bright with bright central condensation, broad fan-like elongation to SW, close to bright star, moonlight affected. Comp Star= TYC 568-610-1... Method= M... Cat= TJ]
2011 June 26.03 UT: m1=9.4, Dia.=5′, DC=3, no tail... 11×80 B... Carlos Labordena (Castellón, España)
2011 June 26.02 UT: m1=9.6, Dia.=4′, DC=5, no tail... 23.5-cm SCT(67x)... Carlos Labordena (Castellón, España)
2011 June 25.208 UT: m1=9.2, Dia.=5′, DC=5... 22-cm L f:6.5 (60x)... Marco Goiato (Araçatuba, Brasil)
2011 June 25.02 UT: m1=9.5, Dia.=5′, DC=3, no tail... 11×80 B... Carlos Labordena (Castellón, España)
2011 June 25.02 UT: m1=9.8, Dia.=4′, DC=4, no tail... 20-cm SCT(50x)... Carlos Labordena (Castellón, España)
2011 June 25.01 UT: m1=9.1, Dia.=4′, DC=5... 20-cm SCT (77x)... Juan José González (Alto del Castro – Aralla, alt. 1720 m., León, España) [Cola en abanico entre AP: 170º y 240º. Observación realizada antes del orto lunar. Altura sobre el horizonte: 15º]
2011 June 24.59 UT: m1=9.6, Dia.=4’, DC= 6... 25-cm L f:5 (39x)... Chris Wyatt (Walcha, NSW, Australia) [Coma has diffuse edges, fan shAP:ed elongation to SW. Bright star-like central condensation, inner coma surrounding central condensation AP:pears elongated to SW, enhances well with Swan Band filter. Comp Star= TYC 568-817-1... Method= M... Cat= TJ]
2011 June 10.73 UT: m1=9.9, Dia.=3´... 25×100 B... David A. J. Seargent (Cowra, NSW, Australia)
2011 June 09.98 UT: m1=10.0, Dia.=1.5′, DC=6... 13-cm reflector (65x)... Danil Sidorko (Korenovsk, Russia)
2011 June 06.75 UT: m1=9.9, Dia.=4.5’, DC=5/... 25-cm L f:5 (39x)... Chris Wyatt (Walcha, NSW, Australia) [Coma slightly elongated to South, enhanced inner coma using Swan band filter, central condensation almost stellar. Comp Star= TYC 5245-886-1... Method= M... Cat= TJ]
2011 June 05.98 UT: m1=9.7, Dia.=1.3′, DC=6... 13-cm reflector (65x)... Danil Sidorko (Korenovsk, Russia)
2011 June 05.11 UT: m1=10.4, Dia.=2′, DC=5, no tail... 23.5-cm SCT (67x)... Carlos Labordena (Castellón, España)
2011 June 04.98 UT: m1=9.7, Dia.=1.3′, DC=6... 13-cm reflector (65x)... Danil Sidorko (Korenovsk, Russia)
2011 June 04.10 UT: m1=9.4, Dia.=5.5′, DC=3/... 20-cm SCT (77x)... Juan José González (Alto del Castro – Aralla, alt. 1720 m., León, España) [Altura sobre el horizonte: 19º]
2011 June 03.97 UT: m1=10.0, Dia.=1′, DC=6... 13-cm reflector (65x)... Danil Sidorko (Korenovsk, Russia)
2011 June 03.77 UT: m1=9.9, Dia.=3.5’, DC=6... 25-cm L f:5 (39x)... Chris Wyatt (Walcha, NSW, Australia) [Come has diffuse edges, inner coma brightens gradually to a small, bright, star-like central condensation which AP:pears slightly elongated to the South. No enhancement with Swan band filter. Comp Star= TYC 5245-886-1... Method= M... Cat= TJ]
2011 June 03.408 UT: m1=9.7, Dia.=2.0´, DC=5/6, Tail= not visible... 25-cm Reflector (48x)... Salvador Aguirre (Hermosillo, Sonora, Mexico)
2011 June 03.34 UT: m1=10.1, Dia.=1′, DC=6... 18-cm L (57x)... Alexandre Amorim (Florianopolis, Brazil)
2011 June 02.34 UT: m1=10.0, Dia.=1′, DC=6... 18-cm L (57x)... Alexandre Amorim (Florianopolis, Brazil)
2011 June 01.98 UT: m1=10.2, Dia.=1.2′, DC=6... 13-cm reflector (65x)... Danil Sidorko (Korenovsk, Russia)
2011 June 01.34 UT: m1=10.0, Dia.=1′, DC=7... 18-cm L (70x)... Alexandre Amorim (Florianopolis, Brazil)
2011 May  31.34 UT: m1=10.1, Dia.=1′, DC=6... 18-cm L (57x)... Alexandre Amorim (Florianopolis, Brazil)
2011 May  30.35 UT: m1=10.1, Dia.=1′, DC=6... 18-cm L (57x)... Alexandre Amorim (Florianopolis, Brazil)
2011 May  28.424 UT: m1=10.0, Dia.=2.5´, DC=5, Tail= not visible... 25-cm Reflector (48x)... Salvador Aguirre (Hermosillo, Sonora, Mexico)
2011 May  28.36 UT: m1=9.9, Dia.=1′, DC=6... 18-cm L (57x)... Alexandre Amorim (Florianopolis, Brazil)
2011 May  15.14 UT: m1=9.9, Dia.=2.2′, DC=5... 20-cm SCT (100x)... Juan José González (Alto del Castro – Aralla, alt. 1720 m., León, España) [Observación realizada tras el ocaso lunar, en el crepúsculo astronómico. Cielo muy claro de montaña. Altura sobre el horizonte: 11º]
2011 May  14.77 UT: m1=10.8, Dia.=4’, DC=6... 25-cm L f:5 (39x)... Chris Wyatt (Walcha, NSW, Australia) [Coma has diffuse, evenly illuminated coma with small star-like central condensation, enhances well with Swan band filter, slight interference by zodiacal light, coma also AP:pears elongated to the South. Comp Star= TYC 5820-220-1... Method= M... Cat= TJ]
2011 May  10.76 UT: m1=11.2, Dia.=2’, DC=6... 25-cm L f:5 (39x)... Chris Wyatt (Walcha, NSW, Australia) [No tail, coma has diffuse edges with small stellar central condensation, elongated to South. Coma enhances slightly with Swan band filter. Comp Star= ASAS-3 230200-0802.8... Method= M... Cat= AU]
2011 May  10.48 UT: m1=10.8, Dia=2′, DC=4, Tail= not visible... 25-cm Reflector (48x)... Salvador Aguirre (Hermosillo, Sonora, Mexico)
2011 May  04.74 UT: m1=10.9, Dia.=4’, DC=5/6... 25-cm L f:5 (39x)... Chris Wyatt (Walcha, NSW, Australia) [No tail, close to star, coma has diffuse edges with tight, bright and small central condensation. Comp Star= ASAS-3 225820-0859.7... Method= M... Cat= AU]
2011 May  03.71 UT: m1=11.1, Dia.=2′, DC=5... 25.4-cm reflector (71x)... David A. J. Seargent (Cowra, NSW, Australia)
2011 May  01.78 UT: m1=11.0, Dia.=2.5’, DC=5... 25-cm L f:5 (39x)... Chris Wyatt (Walcha, NSW, Australia) [No tail, coma diffuse with bright central condensation, slight interference by zodiacal light. Comp Star= ASAS-3 225643-1000.3... Method= M... Cat= AU]
2011 Apr. 30.78 UT: m1=10.4, Dia.=3.8’, DC=5... 25-cm L f:5 (39x)... Chris Wyatt (Walcha, NSW, Australia) [Coma larger than previous observations, diffuse with tight, small central condensation, no tail, coma enhances slightly with Swan band filter. Comp Star= TYC 5813-785-1... Method= M... Cat= TJ]
2011 Apr. 03.35 UT: m1=[11.0... 18-cm L (57x)... Alexandre Amorim (Florianopolis, Brazil) [altitude 23 degrees]
2010 Dec. 31.44 UT: m1=13.0, Dia.=1.1’, DC=1/2... 25-cm 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... 22-cm L f:6.5 (160x)... Marco Goiato (Araçatuba, Brasil)
2010 Dec. 29.44 UT: m1=13.8, Dia.=1.2’, DC=2/3... 25-cm 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... 40-cm L f:4 (144x)... Seiichi Yoshida (Kita-karuizawa, Gunma, Japan)
2010 Nov. 25.43 UT: m1=13.2, Dia.=0.8′, DC=3... 25-cm L f:5 (83x)... Chris Wyatt (Walcha, NSW, Australia) [No tail, coma small and diffuse, slight central condensation AP:pearing 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... 20-cm 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... 25-cm 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... 22-cm L f:6.5 (160x)... Marco Goiato (Araçatuba, Brasil)
2010 Oct. 29.958 UT: m1=12.8, Dia.=1′, DC=4... 22-cm L f:6.5 (160x)... Marco Goiato (Araçatuba, Brasil)
2010 Sep. 12.66 UT: m1=13.3 CCD, Dia.=0.7′... 18-cm 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... 25-cm 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 ... 22-cm L f:6.5 (230x)... Marco Goiato (Araçatuba, Brasil)
2010 Aug. 20.10 UT: m1=12.8, Dia.=0.7′, DC=4... 20-cm 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:]
2009 Sep. 13.32 UT: m1=17.7 CCD, Dia.=0.13′... 20-cm L + CCD... Walter Robledo (Córdoba, Argentina)
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