257P/Catalina

257P/Catalina
2013 Oct. 12.95 UT: m1=16.1 CCD, Dia.=0.5′, Tail= 6.3′ in PA: 262 deg ... 0.40-m f/8 Ritchey-Chretien + CCD... V.Gerke & T.Prystavski (Ka-Dar observatory, TAU station C32, remotely Nizhniy Arkhyz, Russia)
2013 Oct. 08.68 UT: m1=16.2 CCD, Dia.=0.44′, Tail= 4.4′ in PA: 263 deg... 0.40-m f/8 Ritchey-Chretien + CCD... V.Gerke & T.Prystavski (Ka-Dar observatory, TAU station C32, remotely Nizhniy Arkhyz, Russia)
2013 Oct. 03.96 UT: m1=[15.8... 50.8-cm refl. (307x)... Sandor Szabo (Hungary) [NEGATIVE, fainter than 15.8 mag.]
2013 Sep. 06.96 UT: m1=[15.8, NEGATIVE... 50.8-cm L (307x)... Sandor Szabo (Hungary) [Comet is not seen, fainter than 15.8 mag]
2013 Aug. 11.26 UT: m1=17.3, DC=3... Visual 36″ F/3.5... Jean-François Viens (Cd’OA, Monts Notre-Dame, Québec, Canada)
2013 May  08.43 UT: m1=18.1 CCD, Dia.=0.16′, Tail= 0.3′ in PA: 264 deg ... 0.43-m f/4.5 astrograph + CCD... A. Novichonok & T.Prystavski (iTelescope observatory, H06 (remotely Mayhill, U.S.A.)
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