C/2012 J1 (Catalina)

C/2012 J1 (Catalina)
2014 Feb. 23.49 UT: m1=17.2 CCD, Dia.=0.2′, Tail= 0.2′, in PA: 311 deg ... 0.32-m f/7.4 Ritchey-Chretien + CCD... A. Novichonok & T. Prystavski (iTelescope observatory, Q62. Remotely Siding Spring, Australia)
2014 Jan. 26.58 UT: m1=15.7 CCD, Dia.=0.51′... 0.32-m f/7.4 Ritchey-Chretien + CCD... A. Novichonok & T. Prystavski (iTelescope observatory, Q62. Remotely Siding Spring, Australia)
2013 Dec. 30.47 UT: m1=15.2: CCD, Dia.=0.51′, Tail= 1′ in PA: 299 deg ... [T9] 0.32-m f/7.4 Ritchey-Chretien + CCD... A. Novichonok & T. Prystavski (iTelescope observatory, Q62, remotely Siding Spring, Australia)
2013 Dec. 04.89 UT: m1=15.6: CCD... 0.078-m f/1.7 camera lens + CCD... S. Korotkiy & T. Prystavski (Ka-Dar observatory, TAU station, remotely Nizhniy Arkhyz, Russia) [7 frames were co-added for the photometry]
2013 Nov. 30.73 UT: m1=15.6: CCD, Dia.=0.4′, Tail= 1.1′ in PA: 292 deg ... 0.32-m f/7.4 Ritchey-Chretien + CCD... A. Novichonok & T. Prystavski (iTelescope observatory, Q62. Remotely Siding Spring, Australia)
2013 Oct. 03.76 UT: m1=15.7 CCD, Dia.=0.42′, Tail= 0.4′ in PA: 278 deg ... 0.32-m f/7.4 Ritchey-Chretien + CCD... A. Novichonok & T.Prystavski (iTelescope observatory, Q62. Remotely Siding Spring, Australia)
2013 Sep. 04.78 UT: m1=15.8: CCD, Dia.=&0.4′, Tail= 1.1′ in PA: 274 deg ... 0.43-m f/6.8 astrograph + CCD... A. Novichonok & T.Prystavski (iTelescope observatory, Q62. Remotely Siding Spring, Australia)
2013 Aug. 03.82 UT: m1=14.9: CCD, Dia.=&0.6′, Tail= 0.7′ in PA: 282 deg ... 0.32-m f/7.4 Ritchey-Chretien + CCD... A. Novichonok & T. Prystavski (iTelescope observatory Q62. Remotely Siding Spring, Australia)
2013 Mar. 24.00 UT: m1=14.1 CCD, Dia.=0.3’... CCD images unfiltered... Clermont Vallière (Centre d’Observation Astronomique des Monts Notre-Dame, Québec, Canada) [comparison star 3UCAC 216-009548 mag.=15.58]
2013 Jan. 27.97 UT: m1=14.3 CCD, Dia.=0.3’... CCD images unfiltered... Clermont Vallière (Centre d’Observation Astronomique des Monts Notre-Dame, Québec, Canada) [comparison star 3UCAC 217-004200 mag.=15.81]
2013 Jan. 21.09 UT: m1=14.5 CCD, Dia.=0.3’... CCD images unfiltered... Clermont Vallière (Centre d’Observation Astronomique des Monts Notre-Dame, Québec, Canada) [Comparison star 3UCAC 217-003551 mag.=13.79]
2013 Jan. 11.81 UT: m1=13.8, Dia.=1.0′, DC=5... 50.8-cm L (189x)... Sandor Szabo (Hungary)
2013 Jan. 06.10 UT: m1=13.5 V CCD, Dia.=1.1′... 11-cm R + CCD... Artyom Novichonok (remotely from Mayhill, U.S.A.)
2013 Jan. 06.08 UT: m1=13.9 CCD, Dia.=0.9′... 30.5-cm SCT... Jakub Cerny (robotic telescope FRAM, Malargue, Argentina)
2013 Jan. 05.98 UT: m1=14.98 CCD, Dia.=0.4’... CCD images unfiltered... Clermont Vallière (Centre d’Observation Astronomique des Monts Notre-Dame, Québec, Canada) [radial profil model with comparison star 3UCAC 219-002129 mag.=13.57]
2013 Jan. 03.45 UT: m1=12.9, Dia.=0.8’, DC=1/2... 25-cm L f:5 (83x)... Chris Wyatt (Walcha, NSW, Australia) [Small and very diffuse coma, difficult observation to make due to slight haze in atmosphere in the direction of the field. Method= S... Cat= TA]
2013 Jan. 03.08 UT: m1=13.8 CCD, Dia.=0.8′... 30.5-cm SCT... Jakub Cerny (robotic telescope FRAM, Malargue, Argentina)
2013 Jan. 02.97 UT: m1=14.29 CCD, Dia.=0.3’...CCD images unfiltered... Clermont Vallière (Centre d’Observation Astronomique des Monts Notre-Dame, Québec, Canada) [comparison star 3UCAC 220-002069 mag.=14.38]
2012 Dec. 24.04 UT: m1=13.8 CCD, Dia.=0.4’... CCD images unfiltered... Clermont Vallière (Centre d’Observation Astronomique des Monts Notre-Dame, Québec, Canada)
2012 Dec. 16.75 UT: m1=13.3, Dia.=0.7′, DC=4... 20-cm L (222x)... Artyom Novichonok (Konchezero, Russia) [Very faint, near limit of the telescope]
2012 Dec. 16.03 UT: m1=13.5 CCD, Dia.=0.4’... CCD images unfiltered... Clermont Vallière (Centre d’Observation Astronomique des Monts Notre-Dame, Québec, Canada)
2012 Dec. 15.08 UT: m1=13.6 CCD, Dia.=0.4’... CCD images unfiltered... Clermont Vallière (Centre d’Observation Astronomique des Monts Notre-Dame, Québec, Canada)
2012 Dec. 13.44 UT: m1=13.7, Dia.=1.2’, DC=5/6... 25-cm L f:5 (83x)... Chris Wyatt (Walcha, NSW, Australia) [Easy to locate, faint outer coma, central condensation appears stellar in periods of good seeing with diffuse light surrounding the condensation of the inner coma, fading toward edges. Appears circular. Method= M... Cat= AQ]
2012 Dec. 12.04 UT: m1=13.6 CCD, Dia.=0.3’... CCD images unfiltered... Clermont Vallière (Centre d’Observation Astronomique des Monts Notre-Dame, Québec, Canada)
2012 Dec. 08.85 UT: m1=12.7, Dia.=1′, DC=5, Tail not visible... 23.5-cm SCT (94x)... Carlos Labordena (Castellón, España)
2012 Dec. 08.81 UT: m1=12.5, Dia.=1.2′, DC=6... 20-cm SCT (133x)... Juan José González (Alto del Trichero – Soto y Amío, alt. 1190 m, León, España)
2012 Dec. 04.08 UT: m1=[11.3... 15-cm SCT (37x)... Salvador Aguirre (Hermosillo, Sonora, Mexico)
2012 Dec. 04.05 UT: m1=13.7 CCD, Dia.=0.8′... 30.5-cm SCT... Jakub Cerny (robotic telescope FRAM, Malargue, Argentina)
2012 Dec. 02.79 UT: m1=12.5, Dia.=1.3′, DC=6... 20-cm SCT (133x)... Juan José González (Alto del Trichero – Soto y Amío, alt. 1190 m, León, España) [Estrellas de campo comprobadas en el DSS. Estrellas de comparación de la fotometría APASS cercana al cometa. Cielo muy claro de montaña]
2012 Nov. 24.41 UT: m1=[12.1... 40.0-cm L f/4.5 (257x)... Seiichi Yoshida (Gunma, Japan)
2012 Nov. 20.05 UT: m1=13.4 CCD, Dia.=0.9′... 30.5-cm schmidt-cassegrain... Jakub Cerny [robotic telescope FRAM in Malargue, Argentina]
2012 Nov. 17.84 UT: m1=13.6 CCD, Dia.=0.3’... CCD images unfiltered... Clermont Vallière (Centre d’Observation Astronomique des Monts Notre-Dame, Québec, Canada)
2012 Nov. 16.00 UT: m1=12.2 (S), Dia.=1′, DC=4... 22-cm L (160x)... Marco Goiato (Araçatuba, Brasil)
2012 Nov. 14.21 UT: m1=13.3 CCD, Dia.=0.6’... CCD images unfiltered... Clermont Vallière (Centre d’Observation Astronomique des Monts Notre-Dame, Québec, Canada)
2012 Nov. 13.75 UT: m1=12.4, Dia.=1′... 32-cm reflector... Uwe Pilz (Leipzig, Germany)
2012 Nov. 11.98 UT: m1=11.9 (S), Dia.=1′, DC=5... 22-cm L (160x)... Marco Goiato (Araçatuba, Brasil)
2012 Nov. 11.92 UT: m1=13.4 CCD, Dia.=0.3’... CCD images unfiltered... Clermont Vallière (Centre d’Observation Astronomique des Monts Notre-Dame, Québec, Canada)
2012 Nov. 10.97 UT: m1=12.3, DC=6... Visual Aperture 91-cm F:3.5... Jean-François Viens (Centre d’Observation Astronomique des Monts Notre-Dame, Québec, Canada)
2012 Nov. 10.94 UT: m1=13.2 CCD, Dia.=0.5’... CCD images unfiltered... Clermont Vallière (Centre d’Observation Astronomique des Monts Notre-Dame, Québec, Canada)
2012 Nov. 06.89 UT: m1=11.8, Dia.=1.2′, DC=6... 20-cm SCT (100x)... Juan José González (Pandorado, alt. 1190 m, León, España)
2012 Oct. 24.03 UT: m1=13.4 CCD, Dia.=0.5’... CCD images unfiltered... Clermont Vallière (Centre d’Observation Astronomique des Monts Notre-Dame, Québec, Canada)
2012 Oct. 21.08 UT: m1=[11.0... 15-cm SCT (37x)... Salvador Aguirre (Hermosillo, Sonora, Mexico)
2012 Oct. 20.89 UT: m1=13.0, Dia.=0.6′, DC=7... 20.3-cm L (120x)... Mieczyslaw Leszek Paradowski (Dabrowa, Poland)[Comparison stars taken from APASS (AQ)]
2012 Oct. 19.19 UT: m1=12.4 CCD, Dia.=0.7′... 30.5-cm schmidt-cassegrain... Jakub Cerny [robotic telescope FRAM in Malargue, Argentina]
2012 Oct. 17.03 UT: m1=13.6 CCD, Dia.=0.4’... CCD images unfiltered... Clermont Vallière (Centre d’Observation Astronomique des Monts Notre-Dame, Québec, Canada)
2012 Oct. 13.07 UT: m1=13.9 CCD, Dia.=0.5’, Tail= 0,8′ in PA: 232°... Clermont Vallière (Centre d’Observation Astronomique des Monts Notre-Dame, Québec, Canada)
2012 Oct. 09.78 UT: m1=12.7, Dia.=0.5′, DC=2... 32-cm L f:5 (96x)... Uwe Pilz (Leipzig, Germany)
2012 Oct. 09.00 UT: m1=13.4 CCD, Dia.=0.3’... CCD images unfiltered... Clermont Vallière (Centre d’Observation Astronomique des Monts Notre-Dame, Québec, Canada)
2012 Oct. 05.87 UT: m1=12.8, Dia.=0.8′, DC=6... 20-cm SCT (133x)... Juan José González (Ranedo de Curueño, alt. 1075 m, León, España) [Estrellas de campo comprobadas en el DSS. Estrellas de comparación APASS cercanas al cometa]
2012 Sep. 24.24 UT: m1=13.7 CCD, Dia.=0.3’... CCD images unfiltered... Clermont Vallière (Centre d’Observation Astronomique des Monts Notre-Dame, Québec, Canada)
2012 Sep. 15.94 UT: m1=13.7, Dia.=0.6′, DC=7... 35.6-cm L (133x)... Artyom Novichonok (Shadzhatmaz, Caucasus, Russia)
2012 Sep. 15.04 UT: m1=14.0, Dia.=0.6′, DC=5/... 35.6-cm L (133x)... Artyom Novichonok (Shadzhatmaz, Caucasus, Russia)
2012 Sep. 14.03 UT: m1=13.0, DC=5... Visual Aperture 36″ F/ 3.5... Jean-François Viens (Centre d’Observation Astronomique des Monts Notre-Dame, Québec, Canada)
2012 Sep. 13.85 UT: m1=13.0, Dia.=0.9′, DC=7/... 35-cm reflector (107x)... Jakub Cerny (Senohraby, Czech Republic)
2012 Sep. 11.95 UT: m1=13.5, Dia.=0.6′, DC=7... 35.6-cm L (133x)... Artyom Novichonok (Shadzhatmaz, Caucasus, Russia) [Small, faint, compact]
2012 Sep. 10.95 UT: m1=13.7 CCD + V filter, Dia.=0.5′... 15-cm L f:5... Mieczyslaw Leszek Paradowski (Lublin, Poland) [Calibration stars registered on the same 10 frames taken from APASS (AQ)]
2012 Sep. 09.90 UT: m1=13.7, Dia.=0.4′, DC=6... 50.8-cm L (189x)... Sandor Szabo (Sopron, Hungary) [Very compact with stalike nucleus]
2012 Aug. 22.03 UT: m1=14.3, Dia.=0.6′, DC=6... 30-cm L f:5 (188x)... Mieczyslaw Leszek Paradowski (Dabrowa, Poland) [Comparison stars taken from APASS. Motion observed over a 90-min period. Nearby field stars checked in DSS]
2012 Aug. 21.98 UT: m1=13.5, Dia.=0.6′, DC=5... 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 APASS cercana al cometa]
2012 July 28.19 UT: m1=13.5, DC=5... Visual Aperture 36″ F/3.5... Jean-François Viens (Centre d’Observation Astronomique des Monts Notre-Dame, Québec, Canada)
2012 July 19.03 UT: m1=[14.6, Dia.=0′.5... 35-cm reflector (261x)... Jakub Cerny (Korcula Island, Croatia)
2012 July 17.01 UT: m1=13.8, Dia.=0.5′, DC=4... 20-cm SCT (206x)... Juan José González (Pandorado, 1190 m alt., León, España)[Estrellas de campo comprobadas en el DSS. Estrellas de comparación de la fotometría Henden del sector de EG And. Cielo muy claro de montaña]