17P/Holmes

17P/Holmes
2015 Feb. 07.79 UT: m1=14.7, Dia.=0.5′, DC=2... 40-cm L (250x)... Sandor Szabo (Sopron, Hungary)
2015 Feb. 06.94 UT: m1=16.7 CCD + R filter, Dia.=30″, DC 3/... 70-cm f/4 L + CCD... Alexander Baransky (Kyiv comet station MPC 585, Ukraine)
2015 Jan. 29.73 UT: m1=13.2, Dia.=0.2′... 32.0-cm L f/5 (180x)... Uwe Pilz (Leipzig, Germany)
2015 Jan. 14.93 UT: m1=16.9 CCD + R filter, Dia.=10″, DC 4... 70-cm f/4 L + CCD... Alexander  Baransky (Kyiv comet station MPC 585, Ukraine)
2014 Dec. 20.78 UT: m2=16.8 CCD... [T16] 0.15-m f/7.3 refractor + CCD... A. Novichonok & T. Prystavski (AstroCamp Observatory, I89 remotely from Nerpio, Spain)
2014 Nov. 27.51 UT: m1=16.2 CCD, Dia.=0.3′, Tail= 0.6′ in PA: 247 deg ... [T20] 0.1-m f/5.0 astrograph + CCD... A. Novichonok & T. Prystavski (iTelescope observatory, H06, remotely Mayhill, U.S.A.)
2014 Oct. 02.47 UT: m2=16.7 CCD... [T21] 0.43-m f/6.8 astrograph + CCD + f/4.5 focal reducer... A. Novichonok & T.Prystavski (iTelescope observatory, H06, remotely Mayhill, U.S.A.) [couldn’t estimate coma diameter and total brightness because of poor limiting magnitude images obtained]
2014 Sep. 28.15 UT: m1=16.0, DC=3... Visual 36″ F/3.5... Jean-François Viens (Cd’OA des Monts Notre-Dame, Québec, Canada)
2014 Sep. 22.66 UT: m1=14.3, Dia.=0.6′, DC=4... 40-cm L f/4.5 (257x)... Seiichi Yoshida (Gunma, Japan)
2014 Aug. 30.19 UT: m1=16.0 CCD... Dia.=0.6’... CCD images unfiltered... Pierre Laporte (Cd’OA des Monts Notre-Dame, Québec, Canada)
2014 Aug. 28.38 UT: m1=14.8 CCD, Dia.=0.4′, Tail= 0.7′ in PA: 270 deg ... 0.43-m f/6.8 astrograph + CCD + f/4.5 focal reducer... A. Novichonok & T. Prystavski (iTelescope observatory, H06, remotely Mayhill, U.S.A.)
2014 Aug. 28.04 UT: m1=14.4, Dia.=0.9′, DC=2... 40-cm L (230x)... Jakub Cerny (Zachotin, Czech Republic)
2014 Aug. 25.03 UT: m1=14.6, Dia.=0.8′, DC=2/... 40-cm L (230x)... Jakub Černý (Zachotin, Czech Republic)
2014 Aug. 24.24 UT: m1=15.7, DC=2... Visual 36″ F/3.5... Jean-François Viens (Cd’OA des Monts Notre-Dame, Québec, Canada)
2014 Aug. 15.30 UT: m1=16.0 CCD, Dia.=0.1’... CCD images unfiltered... Clermont Vallière (Cd’A des Monts Notre-Dame, Québec, Canada)
2014 Aug. 01.04 UT: m1=13.5, DC=9... 32-cm L f/5 (144x)... Uwe Pilz (Leipzig, Germany)
2014 July 26.02 UT: m1=13.4, Dia.=1.2′, DC=4... 35-cm L (239x)... Jakub Cerný (Czech Republic)
2014 July 24.03 UT: m1=13.2, Dia.=1.0′, DC=3/... 35-cm L (239x)... Jakub Cerný (Czech Republic)
2014 July 02.00 UT: m1=14.0, Dia.=0.6′, DC=3... 50.8-cm L (245x)... Sandor Szabo (Sopron, Hungary)
2014 June 25.43 UT: m1=12.6: CCD, Dia.=&2.3′, Tail= 9′ in PA: 252 deg ... 0.11-m f/5.0 refractor + CCD... A. Novichonok & T. Prystavski (iTelescope observatory, H06 Remotely from Mayhill, U.S.A.) [very diffuse both coma and tail]
2014 June 07.43 UT: m1=13.1, Dia.=1.0′, DC=2/... 41-cm L (229x)... Alan Hale (Cloudcroft, New Mexico, USA) [The coma was pretty ill-defined]
2014 June 02.43 UT: m1=12.5, Dia.=2.0′, DC=~3... 41-cm L (70x)... Alan Hale (Cloudcroft, New Mexico, USA) [I still had to contend with low elevation, zodiacal light, and early twilight. Definite central brightening, but no condensation]
2014 June 01.43 UT: m1=12.8:, Dia.=1.0′... 41-cm L (229x)... Alan Hale (Cloudcroft, New Mexico, USA)
2013 Sep. 21.40 UT: m2=15.3 CCD, Dia.=&1.8′... 0.32-m f/7.4 Ritchey-Chretien + CCD... A. Novichonok & T.Prystavski (iTelescope observatory, Q62. Remotely Siding Spring, Australia))
2013 Aug. 03.40 UT: m2=15.6 CCD, Dia.=&0.7′... 0.32-m f/7.4 Ritchey-Chretien + CCD... A. Novichonok & T. Prystavski (iTelescope observatory Q62. Remotely Siding Spring, Australia)
2013 July 05.41 UT: m1=14.5: CCD, Dia.=0.56′... 0.51-m f/4.5 astrograph + CCD... A. Novichonok & T.Prystavski (iTelescope observatory Q62. Remotely Siding Spring, Australia) [Observations may contain uncertainty due to a star close to comet’s nucleus]
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