185P/Petriew

185P/Petriew
2012 Sep. 22.37 UT: m1=12.8 CCD, Dia.=1.5′... 30.5-cm schmidt-cassegrain... Jakub Cerny [robotic telescope FRAM in Malargue, Argentina]
2012 Sep. 17.05 UT: m1=12.2:, Dia.=2.2′, DC=2/... 35.6-cm L (133x)... Artyom Novichonok (Shadzhatmaz, Caucasus, Russia) [Bright and vague, zodiacal light]
2012 Sep. 16.04 UT: m1=12.0:, Dia.=2.2′, DC=2/... 35.6-cm L (133x)... Artyom Novichonok (Shadzhatmaz, Caucasus, Russia)
2012 Sep. 15.79 UT: m1=11.5, Dia.=2.4′, DC=3... 40.0-cm L f/4.5 (75x)... Seiichi Yoshida (Gunma, Japan)
2012 Sep. 14.75 UT: m1=11.0, Dia.=2’, DC=2/3... 25-cm L f:5 (83x)... Chris Wyatt (Walcha, NSW, Australia) [No tail, very diffuse coma with weak central condensation, averted vision. Extinction corrected. Method=S. Cat=AQ]
2012 Sep. 14.12 UT: m1=11.5, Dia.=2′... 32-cm reflector... Uwe Pilz (Leipzig, Germany)
2012 Sep. 13.04 UT: m1=12.8:, Dia.=1.8′, DC=3... 35.6-cm L (133x)... Artyom Novichonok (Shadzhatmaz, Caucasus, Russia)
2012 Aug. 26.88 UT, m1=10.7, Dia.=3′, DC=2... 20-cm reflector... Man-To Hui (Luogang, Canton, China) [city lights and twilight. The comet appears very diffuse]
2012 Aug. 24.79 UT: m1=10.5, Dia.= 2.8’, DC=2/3... 25-cm L f:5 (83x)... Chris Wyatt (Walcha, NSW, Australia) [No tail, slight interference by zodiacal light and Venus. Method=S. Cat=AQ]
2012 Aug. 24.33 UT: m1=12.4 CCD, Dia.=0.6’, Tail= 0.6′ PA: 278°... Measures taken on CCD images... Pierre Laporte (Centre d’Observation Astronomique des Monts Notre-Dame, Québec, Canada)
2012 Aug. 22.15 UT: m1=9.7, Dia.=5′, DC=2... 20-cm SCT (77x)... Juan José González (Alto del Castro – Aralla, alt. 1720 m, León, España) [Varias estrellas en la coma, siendo la más brillante de magnitud 12.0 (Tycho-2)].
2012 Aug. 19.80 UT: m1=11.2, Dia.=3’, DC= 2... 25-cm L f:5 (39x)... Chris Wyatt Walcha, NSW, Australia] [No tail, coma diffuse, slight haze in local atmosphere. Method= S. Cat= TK]
2012 Aug. 19.75 UT: m1=10.1, Dia.=3.6′, DC=4... 40.0-cm L f/4.5 (75x)... Seiichi Yoshida (Gunma, Japan)
2012 Aug. 18.40 UT: m1=11.9, Dia.=0.8′, 30.5-cm schmidt-cassegrain... Jakub Cerny (Czech Republic) [robotic telescope FRAM in Malargue, Argentina]
2012 Aug. 18.14 UT: m1=11.3, Dia.=2′, DC=4, no tail... 23.5-cm SCT(94x)... Carlos Labordena (Castellón, España)
2012 Aug. 17.79 UT: m1=10.8, Dia.=2.2’, DC=2... 25-cm L f:5 (39x)... Chris Wyatt (Walcha, NSW, Australia) [No tail, coma appears large and diffuse, gradually increasing brightness to centre with a broad patch of light, enhances using Swan Band filter. Method= S. Cat= AQ]
2012 July 31.33 UT: m1=11.5, DC=3... Visual 36″ F/3.5... Jean-François Viens (Centre d’Observation Astronomique des Monts Notre-Dame, Québec, Canada)
2012 July 28.31 UT: m1=11.0, DC=4... Visual 36″ F/3.5... Jean-François Viens (Centre d’Observation Astronomique des Monts Notre-Dame, Québec, Canada)
2012 July 28.41 UT: m1=11.7 CCD, Dia.=1.6′... 30.5-cm schmidt-cassegrain + CCD... Jakub Cerny [remotly FRAM Malargue, Argentina]
2012 July 28.36 UT: m1=11.0 (S), Dia.=2′, DC=3... 22-cm L (160x)... Marco Goiato (Araçatuba, Brasil)
2012 July 27.41 UT: m1=12.1 CCD, Dia.=1′.6... 30.5-cm schmidt-cassegrain + CCD... Jakub Cerny [remotly FRAM Malargue, Argentina]
2012 July 23.13 UT: m1=10.4, Dia.=3.5′, DC=2/... 20-cm SCT (77x)... Juan José González (Alto del Castro – Aralla, alt. 1720 m, León, España) [Mejores condiciones atmosféricas de observación permitieron realizar una estimación más brillante que la obtenida hace seis días]
2012 July 21.35 UT: m1=11.3 (S), Dia.=1.5′, DC=4... 22-cm L (160x)... Marco Goiato (Araçatuba, Brasil)
2012 July 19.04 UT: m1=13.5, Dia.=0′.9, DC=4... 35-cm reflector (117x)... Jakub Cerny (Korcula Island, Croatia)
2012 July 17.13 UT: m1=11.0, Dia.=2.5′, DC=2... 20-cm SCT (100x)... Juan José González (Pandorado, 1190 m alt., León, España)
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