C/2014 Q3 (Borisov)

C/2014 Q3 (Borisov)
Reported observations:
2015 Feb. 23.05 UT: m1=17.2: CCD Dia.=&0.5′... 0.3-m f/1.5 astrograph + CCD... G. Borisov & T. Prystavski (MARGO – MPC L51, Crimea-Nauchnij)
2015 Jan. 14.11 UT: m1=15.4 CCD, Dia.=0.6′... 0.3-m f/1.5 astrograph + CCD... G. Borisov & T. Prystavski (MARGO – MPC L51, Crimea-Nauchnij)
2015 Jan. 10.72 UT: m1=[12.0, Dia.=1.3′, NEGATIVE... 7.6-cm f/4 L (38x)... Marek Biely (Brno, Czech Republic) [Not visible as I expected. Fainter than 12.0 mag. Slight interference of low clouds.]
2014 Dec. 20.20 UT: m1=[11.4, Dia.=2.6′, NEGATIVE... 7.6-cm f/4 L (38x)... Marek Biely (Brno, Czech Republic) [Fainter than 11.4 mag. Slight interference of astronomical twilight]
2014 Dec. 13.15 UT: m1=12.4: CCD, Dia.=4.0′... 0.3-m f/1.5 astrograph + CCD... G. Borisov & T. Prystavski (MARGO – MPC L51, Crimea-Nauchnij)
2014 Dec. 08.82 UT: m2=15.8 CCD, Dia.=&3.5′... 0.35-m Schmidt-Cassegrain+f/6 focal reducer+CCD... D. Buczynski & T. Prystavski (Tarbatness Observatory, I81 Portmahomack, Scotland, U.K.) [interference by Moon: Moon phase 0.95, altitude 12 deg.]
2014 Nov. 29.38 UT: m1=12.1, Dia.=2.1′, DC=2... 40.0-cm L f/4.5 (75x)... Seiichi Yoshida (Gunma, Japan)
2014 Nov. 24.73 UT: m1=10.7, Dia.=6.0′, DC=2/...  12-cm R f/5 (20x)... Uwe Pilz (Leipzig, Germany)
2014 Nov. 25.67 UT: m2=15.4 CCD, Dia.=&7.2′... 0.3-m f/1.5 astrograph + CCD... G. Borisov & T. Prystavski (MARGO – MPC L51, Crimea-Nauchnij)
2014 Nov. 23.16 UT: m2=15.4 CCD, Dia.=&6.5′... 0.35-m Schmidt-Cassegrain+f/6 focal reducer+CCD... D. Buczynski & T. Prystavski (Tarbatness Observatory, I81, Portmahomack, Scotland, U.K.)
2014 Nov. 23.08 UT: m1=[11.5, Negative... 15-cm SCT (75x)... Salvador Aguirre (Hermosillo, Sonora, Mexico)
2014 Nov. 20.00 UT: m2=15.6 CCD, Dia.=&6.5′... 0.35-m Schmidt-Cassegrain+f/6 focal reducer+CCD... D. Buczynski & T. Prystavski (Tarbatness Observatory, I81, Portmahomack, Scotland, U.K.)
2014 Nov. 18.78 UT: m1=10.8, Dia.=2.5′, DC=3, no tail... 20-cm SCT (50x)... Carlos Labordena (Castellón, España)
2014 Nov. 17.45 UT: m1=11.0:, Dia.=3′, DC=3/, Tail= Not visible... 15-cm SCT (75x)... Salvador Aguirre (Hermosillo, Sonora, Mexico)
2014 Nov. 15.77 UT: m1=11.1, Dia.=2′, DC=3, no tail... 20-cm SCT (50x)... Carlos Labordena (Castellón, España)
2014 Nov. 15.73 UT: m1=13.7... 32-cm L f/5 (144x)... Uwe Pilz (Leipzig, Germany)
2014 Nov. 14.09 UT: m2=15.2 CCD, Dia.=&7.3′... 0.35-m Schmidt-Cassegrain+f/6 focal reducer+CCD... D. Buczynski & T. Prystavski (Tarbatness Observatory, I81, Portmahomack, Scotland, U.K.)
2014 Nov. 13.74 UT: m1=11.3: CCD, Dia.=&7.2′... 0.3-m f/1.5 astrograph + CCD... G. Borisov & T. Prystavski (MARGO – MPC L51, Crimea-Nauchnij)
2014 Nov. 13.10 UT: m2=15.2 CCD, Dia.=&7.3′... 0.35-m Schmidt-Cassegrain+f/6 focal reducer+CCD... D. Buczynski & T. Prystavski (Tarbatness Observatory, I81, Portmahomack, Scotland, U.K.)
2014 Nov. 09.78 TU: m1=10.9, Dia.=2′, DC=2... 11.4-cm L f/8 (45x)... Neil Norman (Ipswich, England) [Comet appears small and diffuse. Best seen with averted vision]
2014 Nov. 05.14 UT: m1=10.3:, Dia.=&3′, DC=2... 20×80 B... Marek Biely (Brno, Czech Republic) [Probably in maximal brightness. Very difficult object visible only with averted vision. Limit observation]
2014 Nov. 03.10 UT: m2=15.1 CCD, Dia.=&7.0′... 0.35-m Schmidt-Cassegrain+f/6 focal reducer+CCD... D. Buczynski & T. Prystavski (Tarbatness Observatory, I81, Portmahomack, Scotland, U.K.) [interference by Moon: Moon phase 0.82, altitude 2 deg.]
2014 Nov. 02.17 UT: m1=12.6, Dia.=1.0′, DC=1... 32-cm L f/5 (96x)... Uwe Pilz (Leipzig, Germany)
2014 Oct. 30.92 TU: m1=10.7, Dia.=2′, DC=3... 11.4-cm ref f/8 (45x)... Neil Norman (Ipswich, England) [Notable movement over the last two days. Comet diffuse and not easy to see,averted vision was required]
2014 Oct. 30.48 UT: m1=11.0, Dia.=4′, DC=1/, Tail= Not visible... 15-cm SCT (75x)... Salvador Aguirre (Hermosillo, Sonora, Mexico)
2014 Oct. 29.00 UT: m2=14.7 CCD, Dia.=&6.3′... 0.35-m Schmidt-Cassegrain+f/6 focal reducer+CCD... D. Buczynski & T. Prystavski (Tarbatness Observatory, I81, Portmahomack, Scotland, U.K.)
2014 Oct. 28.90 UT: m1=11.1:, Dia.=&2.5′, DC=2/... 7.6-cm L f/4 (38x)... Marek Biely (Brno, Czech Republic) [Unexpectedly already visible. But it is so faint, I needed about 20 minutes to see it. Limit observation]
2014 Oct. 28.04 UT: m1=11.2, Dia.=2.5’, DC=4... 50.8-cm L (189x)... Sandor Szabo (Stuhleck, Austria)
2014 Oct. 27.82 TU: m1=11.1, Dia.=2, DC=3... 11.4-cm L f/8 (45x)... Neil Norman (Ipswich, England)
2014 Oct. 26.98 UT: m1=11.5: CCD, Dia.=&6.3′... 0.3-m f/1.5 astrograph + CCD... G. Borisov & T. Prystavski (MARGO – MPC L51, Crimea-Nauchnij)
2014 Oct. 26.42 UT: m1=11.1, Dia.=3.5′, DC=2/... 30.5-cm L f/4.9 (150x)... Todd Augustyniak (Green River State Wildlife Area, Harmon, Illinois, USA) [Rather diffuse with a sizeable coma visible... really jumps out with averted vision]
2014 Oct. 25.75 UT: m1=12.0, Dia.=1.9′, DC=3... 40.0-cm L (75x)... Seiichi Yoshida (Gumma, Japan) [is fairly bright]
2014 Oct. 25.49 UT: m1=10.5, Dia.=2’, DC=2... 30×125 B... Carl Hergenrother (Tucson, AZ, USA)
2014 Oct. 24.88 UT: m2=15.1 CCD, Dia.=&6.2′... 0.35-m Schmidt-Cassegrain+f/6 focal reducer+CCD... D. Buczynski & T. Prystavski (Tarbatness Observatory, I81, Portmahomack, Scotland, U.K.)
2014 Oct. 24.82 UT: m1=10.7, Dia.=2.5′, DC=3... 15-cm R f/5 (38x)... Maik Meyer (Frauenstein, Erzgebirge Mts., Germany) [no enhancement using a Lumicon Swan Band filter]
2014 Oct. 20.83 UT: m2=15.3 CCD, Dia.=&5.4′... 0.3-m f/1.5 astrograph + CCD... G. Borisov & T. Prystavski (MARGO – MPC L51 Crimea-Nauchnij)
2014 Oct. 19.03 UT: m1=12.2: CCD, Dia.=&3.5′... 0.35-m Schmidt-Cassegrain+f/6 focal reducer+CCD... D. Buczynski & T. Prystavski (Tarbatness Observatory, I81, Portmahomack, Scotland, U.K.)
2014 Oct. 18.75 UT: m1=13.8, Dia.=0.6’, DC=3... 50.8-cm L (189x)... Sandor Szabo (Sopron, Hungary)
2014 Oct. 16.00 UT: m1=12.2: CCD, Dia.=&3.5′... 0.35-m Schmidt-Cassegrain+f/6 focal reducer+CCD... D. Buczynski & T. Prystavski (Tarbatness Observatory, I81, Portmahomack, Scotland, U.K.) [Moon phase 0.48, altitude +12 deg... coma diameter can be underestimated]
2014 Oct. 12.02 UT: m1=13.1: CCD, Dia.=&2.2′... 0.3-m f/1.5 astrograph + CCD... G. Borisov & T. Prystavski (MARGO – MPC L51 (Crimea-Nauchnij) [Moon phase 0.85, altitude +63 deg... coma diameter can be underestimated]
2014 Oct. 06.04 UT: m1=12.1: CCD, Dia.=&5.1′... 0.3-m f/1.5 astrograph + CCD... G. Borisov & T. Prystavski (MARGO – MPC L51, Crimea-Nauchnij)
2014 Oct. 04.01 UT: m1=14.9, Dia.=0.6′, DC=4/... 35-cm L (239x)... Jakub Cerny (Zachotin, Czech Republic)
2014 Sep. 30.33 UT: m1=12.6: CCD, Dia.=&3.0′... [T12] 0.11-m f/5.0 refractor + CCD... A. Novichonok & T. Prystavski (iTelescope observatory, Q62, remotely from Siding Spring, Australia)
2014 Sep. 29.92 UT: m1=12.0: CCD, Dia.=&5′... 0.3-m f/1.5 astrograph + CCD... G. Borisov & T. Prystavski (MARGO – MPC L51, Crimea-Nauchnij)
2014 Sept. 28.23 UT: m1=15.7, DC=3... Visual 36″ F/3.5... Jean-François Viens (Cd’OA des Monts Notre-Dame, Québec, Canada)
2014 Sep. 01.47 UT: m1=16.0 CCD, Dia.=0.33′... 0.51-m f/4.5 reflector + CCD... A. Novichonok & T. Prystavski (iTelescope observatory, H06, remotely from Mayhill, U.S.A.)
2014 Aug. 23.01 UT: m1=16.1 CCD, Dia.=0.5′... 0.3-m f/1.5 astrograph + CCD... G. Borisov & T. Prystavski (MARGO – MPC L51, Crimea-Nauchnij)
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