C/2014 R1 (Borisov)

C/2014 R1 (Borisov)
Reported observations:
2015 Apr. 20.03 CCD, m1=15.4: CCD Dia.=&0.5′... 0.3-m f/1.5 astrograph + CCD... G. Borisov & T. Prystavski (MARGO – MPC L51 Crimea-Nauchnij)
2015 Mar. 24.06 UT: m1=14.3: CCD Dia.=&0.6′ Tail=&1.1′ in PA 270 deg ... 0.3-m f/1.5 astrograph + CCD... G. Borisov & T. Prystavski (MARGO – MPC L51 Crimea-Nauchnij)
2015 Feb. 19.09 UT: m1=12.4 CCD Dia.=2.2′, Tail=7.5′ in PA 288 deg ... 0.3-m f/1.5 astrograph + CCD... G. Borisov & T. Prystavski (MARGO – MPC L51, Crimea-Nauchnij)
2015 Feb. 18.08 UT: m1=13.5 CCD + R filter, Dia.=1′, DC 5, Tail: > 11′ in PA: 284 deg ... 70-cm f/4 L + CCD... Alexander Baransky (Kyiv comet station MPC 585, Ukraine)
2015 Feb. 17.13 UT: m1=12.7 CCD + R filter, Dia.=1′20″, DC 5, Tail: > 8’30” in PA: 283 deg ... 70-cm f/4 L + CCD... Alexander Baransky (Kyiv comet station MPC 585, Ukraine)
2015 Feb. 16.17 UT: m1=[11.4, Dia.=1.6′... 7.6-cm L f/4 (38x)... Marek Biely (Brno, Czech Republic) [Fainter than 11.4 mag.]
2015 Feb. 15.48 UT: m1=12.1 CCD, Dia.=1.8′, Tail=&8.0′ in PA 286 deg ... [T20] 0.1-m f/5.0 astrograph + CCD... A. Novichonok & T. Prystavski (iTelescope observatory, H06 remotely from Mayhill, U.S.A.)
2015 Jan. 24.71 UT: m1=12.8, Dia.=1.4’, DC=3/... 25-cm L f:5 (83x)... Chris Wyatt (Walcha, NSW, Australia) [Coma small and diffuse with slight brightening to centre, no tail]
2015 Jan. 17.51 UT: m1=11.3: CCD, Dia.=&2.5′, Tail=&11.2′ in PA 292 deg ... [T20] 0.1-m f/5.0 astrograph + CCD... A. Novichonok, T. Prystavski, N. Teymurov (iTelescope observatory, H06, remotely from Mayhill, U.S.A.)
2015 Jan. 11.50 UT: m1=11.6: CCD, Dia.=&2.6′, Tail=&15.0′ in PA 291 deg ... [T20] 0.1-m f/5.0 astrograph + CCD... A. Novichonok, T. Prystavski, N. Teymurov (iTelescope observatory, H06, remotely from Mayhill, U.S.A.) [interference by Moon: Moon phase 0.68, altitude 56 deg.]
2015 Jan. 02.11 UT: m1=11.3: CCD, Dia.=&4.5′, Tail=&20′ in PA: 293 deg ... 0.3-m f/1.5 astrograph + CCD... G. Borisov & T. Prystavski (MARGO – MPC L51, Crimea-Nauchnij)
2014 Dec. 20.51 UT: m1=10.6: CCD, Dia.=&4.7′, Tail=13.5′ in PA: 294 deg ... [T20] 0.11-m f/5.0 refractor + CCD... A. Novichonok, T. Prystavski, N. Teymurov (iTelescope observatory, H06 (remotely Mayhill, U.S.A.)
2014 Dec. 20.19 UT: m1=10.9:, Dia.=&1.5′, DC=4... 7.6-cm f/4 reflector (38x)... Marek Biely (Brno, Czech Republic) [Extremely difficult observation. Visible only thanks to super sky. I needed almost 1 hour to see it. Limit observation]
2014 Dec. 13.09 UT: m1=11.2: CCD, Dia.=3.5′, Tail=11.0′ in PA: 296 deg ... 0.3-m f/1.5 astrograph + CCD... G. Borisov & T. Prystavski (MARGO – MPC L51, Crimea-Nauchnij) [interference by Moon: Moon phase 0.64, altitude 51 deg.]
2014 Nov. 29.81 UT: m1=10.6, Dia.=1.5′, DC=5... 40.0-cm L f/4.5 (75x)... Seiichi Yoshida (Gunma, Japan)
2014 Nov. 28.51 UT: m1=[11.2, Negative... 15-cm SCT (75x)... Salvador Aguirre (Hermosillo, Sonora, Mexico)
2014 Nov. 26.83 UT: m1=10.7, Dia.=2′.3, DC=4... 25.4-cm L f/4 (46x)... Katsumi Yoshimoto (Yamaguchi, Japan)
2014 Nov. 25.50 UT: m1=11.2 CCD, Dia.=2.5′, Tail=3.5′ in PA: 301 deg.... [T20] 0.1-m f/5.0 astrograph + CCD... A. Novichonok & T. Prystavski (iTelescope observatory, H06, remotely from Mayhill, U.S.A.)
2014 Nov. 23.52 UT: m1=[11.7, Negative... 15-cm SCT (75x)... Salvador Aguirre (Hermosillo, Sonora, Mexico)
2014 Nov. 21.72 UT: m1=10.9, Dia.=1.5’, DC=2/... 25-cm L f:5 (83x)... Chris Wyatt (Walcha, NSW, Australia) [Low altitude= 5.6°... Twilight interference, difficult. At x39 the coma enhances using Swan Band filter and was easier to tease out of the twilight using the filter]
2014 Nov. 20.20 UT: m1=11.6, Dia.=1.5′, DC=3, no tail... 20-cm SCT (80x)... Carlos Labordena (Castellón, España)
2014 Nov. 17.50 UT: m1=[10.8, Negative... 15-cm SCT (75x)... Salvador Aguirre (Hermosillo, Sonora, Mexico)
2014 Nov. 05.15 UT: m1=[10.3, Dia.=1.4′, NEGATIVE... 20×80 B... Marek Biely (Brno, Czech Republic) [Not visible. Fainter than 10.3 mag]
2014 Oct. 30.49 UT: m1=[11.4... 15cm SCT (75x)... Salvador Aguirre (Hermosillo, Sonora, Mexico)
2014 Oct. 28.10 UT: m1=11.2, Dia.=2.0’, DC=5... 50.8-cm L (189x)... Sandor Szabo (Stuhleck, Austria)
2014 Oct. 26.45 UT: m1=11.8, Dia.=1.3′, DC=3... 30.5-cm L f/4.9 (188x)... Todd Augustyniak (Green River State Wildlife Area, Harmon, Illinois, USA) [Immediately visible... easy to see]
2014 Oct. 25.82 UT: m1=12.0, Dia.=1.3′, DC=2... 40.0-cm L (144x)... Seiichi Yoshida (Gumma, Japan) [is fairly bright]
2014 Oct. 11.08 UT: m1=12.0: CCD, Dia.=&2.8′, Tail=&8.1′ in PA 294 deg ... 0.3-m f/1.5 astrograph + CCD... G. Borisov & T. Prystavski (MARGO – MPC L51 Crimea-Nauchnij) [interference by full Moon]
2014 Oct. 06.09 UT: m1=12.2 CCD, Dia.=2.8′, Tail=8.6′ in PA: 287 deg ... 0.3-m f/1.5 astrograph + CCD... G. Borisov & T. Prystavski (MARGO – MPC L51, Crimea-Nauchnij)
2014 Oct. 01.49 UT: m1=12.5 CCD, Dia.=1.9′, Tail=&5.0′ in PA: 290 deg ... [T20] 0.1-m f/5.0 astrograph + CCD... A. Novichonok & T. Prystavski (iTelescope observatory, H06, remotely from Mayhill, U.S.A.)
2014 Sep. 06.07 UT: m1=13.2 CCD, Dia.=2.0′, Tail=3.7′ in PA: 284 deg ... 0.3-m f/1.5 astrograph + CCD... G. Borisov & T. Prystavski (MARGO – MPC L51, Crimea-Nauchnij)
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