19P/Borrelly

19P/Borrelly
Reported observations:
2015 Nov. 12.15 UT: m1=13.6, Dia.=1.4′, DC=3... 60.3-cm L (244x)... Sandor Szabo (Sopron, Hungary)
2015 Oct. 15.22 UT: m1=10.2, Dia.=4′, DC=2... 20-cm SCT (100x)... Juan José González (Alto del Castro, alt. 1720 m, León, España) [Altura sobre el horizonte: 23º. Comienzo del crepúsculo astronómico. Luz zodiacal. Cielo muy claro de montaña]
2015 Sep. 19.13 UT: m1=10.9, Dia.=1.4′, DC=2... 32.0-cm L f/5 (96x)... Uwe Pilz (Leipzig, Germany)
2015 Feb. 01.42 UT: m1=15.1: CCD... [T31] 0.50-m f/6.8 astrograph + CCD + focal reducer... A. Novichonok & T. Prystavski (iTelescope observatory, Q62 remotely from Siding Spring, Australia) [nautical twilight, comet is low over the horizon: altitude +22 deg.]
2014 Dec. 12.44 UT: m1=16.2 CCD, Dia.=0.3′... [T31] 0.50-m f/6.8 astrograph + CCD + focal reducer... A. Novichonok & T. Prystavski (iTelescope observatory, Q62 remotely from Siding Spring, Australia)
2014 Nov. 21.48 UT: m1=16.9 CCD, Dia.=0.22′... [T9] 0.32-m f/7.4 Ritchey-Chretien + CCD... A. Novichonok & T. Prystavski (iTelescope observatory, Q62, remotely from Siding Spring, Australia)
2002 May  12.213 UT: m1=15.21 CCD, Dia.=3", DC=9/9 ... 0.3-m SCT /CCD ... P. Clay Sherrod (ASO, Conway, Arkansas) [perfectly stellar, confirmed by motion ... no diffuse coma nor tail ... very clear skies, deep clear]
2002 May  05.171 UT: m1=15.78 CCD, Dia.=2", DC=2/10 ... 0.3-m SCT /CCD ... P. Clay Sherrod (ASO, Conway, Arkansas) [good clearing and deep sky ... comet nearly stellar and confirmed via 30-minute displacement]
2002 Feb. 17.90 UT: m1=13.4, Dia.=1.0', DC=2 ... 41-cm L (121x) ... Maciej Reszelski (Szamotuly, Poland)
2002 Feb. 13.91 UT: m1=13.3, Dia.=1.0', DC=2/ ... 41-cm L (121x) ... Maciej Reszelski (Szamotuly, Poland)
2002 Jan. 06.15 UT: m1=12.1, Dia.=1'.5, DC=3 ... 25.4-cm L (76x) ... Njørn H. Granslo (Hågår Observatory, Eina, Norway) [Coma still clearly elongated. Close to 10th mag. star. Conditions were Bortle class 4 (last quarter Moon).]
2001 Dec. 22.83 UT: m1=11.8, Dia.=2.3' DC=4 ... 25.4-cm L (46x) ... Katsumi Yoshimoto (Yamaguchi, Japan)
2001 Dec. 21.08 UT: m1=11.8, Dia.=1', DC=3 ... 15-cm L(42x) ... Sergey E. Shurpakov (Baran', Belarus)
2001 Dec. 13.80 UT: m1=12.0, Dia.=1.4', DC=5/ ... 32-cm L (58x) ... Yoshimi Nagai (Yamanashi, Japan) [An object could be confirmed easily.]
2001 Dec. 09.97 UT: m1=11.4, Dia.=1.3', DC=3 ... 30-cm L (60x) ... Vitali Nevski (Vitebsk, Belarus)
2001 Nov. 25.15 UT: m1=11.5, Dia.=2', DC=1 ... 25-cm L (96x) ... C. Segarra (Algimia, Spain)
2001 Nov. 24.77 UT: m1=10.8, Dia.=2.3', DC=4 ... 32-cm L (58x) ... Yoshimi Nagai (Yamanashi, Japan)
2001 Nov. 23.73 UT: m1=11.4, Dia.=1.2', DC=3 ... 25.4-cm T f/6.3 (62x) ... Seiichi Yoshida (Ibaraki, Japan)
2001 Nov. 20.05 UT: m1=11.9, Dia.=2', DC=2 ... 25-cm L (96x) ... C. Segarra (Algimia, Spain)
2001 Nov. 17.11 UT: m1=10.8, Dia.=1x3', DC=4 ... 41-cm L (121x) ... Maciej Reszelski (Szamotuly, Poland) [Amazing conditions. I have first time excellent view 19P in this year. Looks very interesting, like bean 1'x 3' in size]
2001 Nov. 14.12 UT: m1=10.9, Dia.=1'.8, DC=3/ ... 20.3-cm f/10 T (100x) ... Bjørn H. Granslo (Fjellhamar, Norway) [Comet appeared elongated in E-W direction. Its visibility was clearly superior to that of C/2001 Q6. Conditions were Bortle scale 4-5.]
2001 Nov. 14.11 UT: m1=11.0, Dia.=1.5', DC=2/ ... 41-cm L (121x) ... Maciej Reszelski (Szamotuly, Poland)
2001 Nov. 13.09 UT: m1=11.0, Dia.=2'.1, DC=3 ... 20.3-cm T (100x) ... Bjørn H. Granslo (Fjellhamar, Norway) [Comet barely visible in a Bortle class 5 sky.]
2001 Oct. 25.09 UT: m1=11.0, Dia.=1', DC=3 ... 25-cm L(53x) ... Sergey E. Shurpakov (Baran', Belarus) [The comet has covered a star GSC with 1963 25 shine 11.2 m in 1h 55 m on UT. Accordingly estimation I have executed hardly later ...  At the moment of the observation, the comet was in immediate proximity from a star ... thus, not given me an opportunity to get a more exact result.]
2001 Oct. 24.96 UT: m1=10.7, Dia.=2', DC=3 ... 30-cm L (60x) ... Vitali Nevski (Vitebsk, Belarus)
2001 Oct. 24.72 UT: m1=10.3, Dia.=2.8', DC=5 ... 32-cm L (58x) ... Yoshimi Nagai (Yamanashi, Japan)
2001 Oct. 24.10 UT: m1=10.6, Dia.=2,5', DC=3/ ... 25-cm L(53x) ... Sergey E. Shurpakov (Baran', Belarus)
2001 Oct. 22.12 UT: m1=10.3, Dia.=3', DC=5 ... 19.5-cm L (50x) ... Darius Gasiunas (Vilnius, Lithuania)
2001 Oct. 22.07 UT: m1=10.8, Dia.=1.7', DC=4 ... 30-cm L (60x) ... Vitali Nevski (Vitebsk, Belarus)
2001 Oct. 20.02 UT: m1=9.8, Dia.=&2.5', DC=3 ... 41-cm L (121x) ... Maciej Reszelski (Szamotuly, Poland)
2001 Oct. 19.74 UT: m1=10.7, Dia.=2.7', DC=5 ... 25.4-cm T f/6.3 (62x) ... Seiichi Yoshida (Ibaraki, Japan)
2001 Oct. 18.68 UT: m1=10.3, Dia.=2.5', DC=4/ ... 32-cm L (58x) ... Yoshimi Nagai (Yamanashi, Japan)
2001 Oct. 17.05 UT: m1=10.6, Dia.=2.5', DC=4 ... 30-cm L (60x) ... Vitali Nevski (Vitebsk, Belarus)
2001 Oct. 14.77 UT: m1=10.5, Dia.=2.3', DC=4 ... 25.4-cm L (46x) ... Katsumi Yoshimoto (Yamaguchi, Japan)
2001 Oct. 13.76 UT: m1=10.6, Dia.=2.3', DC=4 ... 25.4-cm L (46x) ... Katsumi Yoshimoto (Yamaguchi, Japan)
2001 Sep. 29.05 UT: m1=10.7, Dia.=2', DC=4 ... 30-cm L (60x) ... Vitali Nevski (Vitebsk, Belarus)
2001 Sep. 28.75 UT: m1=9.7, Dia.=2.8', DC=5 ... 25.4-cm T f/6.3 (62x) ... Seiichi Yoshida (Ibaraki, Japan)
2001 Sep. 28.14 UT: m1=9.9, Dia.=3.9', DC=4 ... 25x100 B ... Werner Hasubick (Buchloe, Germany)
2001 Sep. 27.79 UT: m1=10.3, Dia.=2', DC=5 ... 20-cm L 45x ... Michael Mattiazzo (Wallaroo, South Australia) [Out-Out method. TJ comparisons 10.1, 10.5, 10.7]
2001 Sep. 27.51 UT: m1=10.9:, Dia.=1.5:, DC=4 ... 40-cm L (73x) ... Jim McCormick (West Point, Utah) [In-out method with GSC 1389 56]
2001 Sep. 27.09 UT: m1=10.0, Dia.=1,7', DC=4 ... 25-cm L (53x) ... Sergey E. Shurpakov (Baran', Belarus)
2001 Sep. 27.06 UT: m1=10.6, Dia.=2', DC=4 ... 30-cm L (60x) ... Vitali Nevski (Vitebsk, Belarus)
2001 Sep. 25.17 UT: m1=10.1, Dia.=3', DC=3 ... 25-cm L (60x) ... C. Segarra (Algimia, Spain)
2001 Sep. 22.79 UT: m1=10.0, Dia.=1.9', DC=5/ ... 32-cm L (58x) ... Yoshimi Nagai (Yamanashi, Japan)
2001 Sep. 22.73 UT: m1=10.0, Dia.=3.2', DC=3/ ... 25.4-cm T f/6.3 (62x) ... Seiichi Yoshida (Ibaraki, Japan)
2001 Sep. 21.08 UT: m1=9.2, Dia.=2.5', DC=5 ... 15-cm (48x) ... Piotr Guzik (Krosno,Poland)

///