C/2019 Q4 Borisov
- C/2019 Q4 Borisov 2020 February 29 18:29 UT, Planewave 510mm CDK f/4,5, FLI PL11002M, 300s, T 17,1: mag, N 17,1 mag (10"-Box 16,41 mag), Mayhill, New Mexico, Remote,
Michael Hauss
- C/2019 Q4 Borisov 2020 February 26 18:44 UT, Planewave 431mm CDK f/6,8, FLI PL16803, 300s, T 18,3 mag, N 18,3 mag (10"x10"-Box 18,29 mag), Siding Spring, Australia, Remote,
Michael Hauss
- C/2019 Q4 Borisov 2020 January 31 16:43 UT, RCOS 320mm f/9, Apogee Aspen CG16070, 300s, T 16,5, N 16,9 mag (10"x10"-Box 16,22 mag), Koma 13", Siding Spring, Australia, Remote,
Michael Hauss
- C/2019 Q4 Borisov 2020 January 22 17:48 UT, Planewave 20" CDK f/4,5, FLI PL09000, 300s, N 17,5 mag (10"-Box 17,16 mag), Koma 8", Siding Spring, Australien, Remote,
Michael Hauss
- C/2019 Q4 Borisov 2020 January 20 17:40 UT, Planewave 431mm CDK f/6,8, FLI PL16803, 300s, T 16,4 mag, N 17,1 mag (10"x10"-Box 17,01 mag), Koma 15", Siding Spring, Australia, Remote,
Michael Hauss
- C/2019 Q4 Borisov 2020 January 05 10:08 UT, 6x60sec.(GIF), LX200UHTC-254mm @f/6.5, ATIK314L+
Charles Triana Ortiz, AstroExplor Observatory, Colombia
- C/2019 Q4 Borisov 2020 January 01 07:03 UT, 25 x 60s 0.61-m f/6.5 Planewave CDK24 FLI ProLine 9000 X02 - Telescope.Live, Chile, Remote,
Erik Bryssinck
- C/2019 Q4 Borisov 2020 January 01 07:03 UT, 25 x 60s 0.61-m f/6.5 Planewave CDK24 FLI ProLine 9000 X02 - Telescope.Live, Chile, Remote,
Erik Bryssinck
- C/2019 Q4 Borisov 2019 December 28 15:45 UT, , 2 x 10 min., 0,5 m - Reflektor (f = 2,26 m), FLI-CCD, Siding Spring Observatory, Australien (T30-Teleskop des iTelescope- Netzwerkes), Remote,
Stefan Korth
- C/2019 Q4 Borisov 2019 December 25 16:16 UT, , 3 x 10 min., 0,5 m - Reflektor (f = 2,26 m), FLI-CCD, Siding Spring Observatory, Australien (T30-Teleskop des iTelescope- Netzwerkes)., Remote,
Stefan Korth
- C/2019 Q4 Borisov 2019 December 15 07:36 UT, 25 x 60s 0.61-m f/6.5 Planewave CDK24 FLI ProLine 9000 X02 - Telescope.Live, Chile, Remote,
Erik Bryssinck
- C/2019 Q4 Borisov 2019 December 15 07:36 UT, 25 x 60s 0.61-m f/6.5 Planewave CDK24 FLI ProLine 9000 X02 - Telescope.Live, Chile, Remote,
Erik Bryssinck
- C/2019 Q4 Borisov 2019 December 13 07:25 UT, 25 x 60s 0.61-m f/6.5 Planewave CDK24 FLI ProLine 9000 X02 - Telescope.Live, Chile, Remote,
Erik Bryssinck
- C/2019 Q4 Borisov 2019 December 11 10:55 UT, 130 mm f/5, with a Mallincam Micro + 0.50 focal reducer making the scope F/2.5. 31.5 seconds
Thomas Dorman, Oklahoma, USA
- C/2019 Q4 Borisov 2019 December 11 07:48 UT, 20 x 60s 0.61-m f/6.5 Planewave CDK24 FLI ProLine 9000 X02 - Telescope.Live, Chile, Remote,
Erik Bryssinck
- C/2019 Q4 Borisov 2019 December 10 05:55 UT, Planewave 20" CDK f/6.8, FLI PL09000, Exp: 30 min., Remote,
José J. Chambó, Martin Vd. Dussen (Tenerife, Spain)
- C/2019 Q4 Borisov 2019 December 09 17:13 UT, Planewave 20" CDK f/4.4, FLI PL6303E, Exp: 8 min., Remote,
José J. Chambó (Siding Sring, Australia)
- C/2019 Q4 Borisov 2019 December 05 04.36 - 05.21 UT, 28 x 1 min, ISO 800, Canon EOS 6D MkII, TSAPO100Q, Köditz centered on comet
Steffen Fritsche
- C/2019 Q4 Borisov 2019 December 01 2.53 UT, 8"/2.0 22x100sec.8"/2 RASA ASI 1600
Michael Jäger Weißenkirchen
- C/2019 Q4 Borisov 2019 December 01 3.00 UT, GIF 8"/2.0 8"/2 RASA ASI 1600
Michael Jäger Weißenkirchen
- C/2019 Q4 Borisov 2019 November 23 08:10 UT, 20 x 60s 0.61-m f/6.5 Planewave CDK24 FLI ProLine 9000 X02 - Telescope.Live, Chile, Remote,
Erik Bryssinck
- C/2019 Q4 Borisov 2019 November 10 3.15 UT, 20x2min 8"/2 RASA ASI 1600
Michael Jäger Weißenkirchen
- C/2019 Q4 Borisov 2019 November 10 3.15 UT, 20x2min 8"/2 RASA ASI 1600 GIF
Michael Jäger Weißenkirchen
- C/2019 Q4 Borisov 2019 November 09 80s×40 imagenes B2 New 360mm F1852mm + sbig st10xme
Jose Carrillo, Fuensanta -jaen-ESPAÑA
- C/2019 Q4 Borisov 2019 October 31 04:20 UT, 8x 2min, 16" f/2.5, CDS-5D
Roland Fichtl
- C/2019 Q4 Borisov 2019 October 31 02.12 - 03.35 UT, 31 x 2 min, ISO 800, Canon EOS 6D MkII, TSAPO100Q, Köditz centered on comet
Steffen Fritsche
- C/2019 Q4 Borisov 2019 October 30 4.14 UT, Hypergraph Sternwarte Hagen, 20" / f8 Canon 6D 20 x 2 min
Norbert Mrozek
- C/2019 Q4 Borisov 2019 October 27 3.09 UT, GIF 24x130sec.8"/2 RASA ASI 1600
Michael Jäger Weißenkirchen
- C/2019 Q4 Borisov 2019 October 27 3.09 UT, 24x130sec.8"/2 RASA ASI 1600
Michael Jäger Weißenkirchen
- C/2019 Q4 Borisov 2019 October 26 80s×20 imagenes B2 New 360mm F1852mm + sbig st10xme 2019
Jose Carrillo, Fuensanta -jaen-ESPAÑA
- C/2019 Q4 Borisov 2019 October 26 2.30 UT, 38x110sec.8"/2 RASA ASI 1600
Michael Jäger Weißenkirchen
- C/2019 Q4 Borisov 2019 October 26 3.30 UT, 8"/2 RASA ASI 1600
Michael Jäger Weißenkirchen
- C/2019 Q4 Borisov 2019 October 16 01:56:33 UT, 1260s exp. (18x60s), 0.7-m (f/4) L + CCD PL47-10 FLI + R filter, 0.95"/pixel. m1=16.5, Coma 18", DC 4. Asymmetrical, fan-shaped tail, maximum extended - 51" long in p.a. 313 deg.
Alexander Baransky, Kyiv comet station (MPC 585), Ukraine
- C/2019 Q4 Borisov 2019 October 16 11:26 UT, 12 x 60s 0.61-m f/6.5 Planewave CDK24 FLI ProLine 9000 H06 - New Mexico, USA, Remote,
Erik Bryssinck
- C/2019 Q4 Borisov 2019 October 14 02.53 - 04.07 UT, 64 x 30 s, ISO800, Canon EOS 6D MkII, TSAPO100Q, Köditz centered on comet
Steffen Fritsche
- C/2019 Q4 Borisov 2019 October 14 02:38:56 UT, 1080s exp. (18x60s), 0.7-m (f/4) L + CCD PL47-10 FLI + R filter, 0.95"/pixel. m1=16.6, Coma 21", DC 4. Asymmetrical, fan-shaped tail, spread in in p.a. 277-60 deg., maximum extended - 40" long in p.a. 316 deg.
Alexander Baransky, Kyiv comet station (MPC 585), Ukraine
- C/2019 Q4 Borisov 2019 October 13 02:14:08 UT, 1680s exp. (28x60s), 0.7-m (f/4) L + CCD PL47-10 FLI + R filter, 0.95"/pixel. m1=16.8, Coma 18", DC 4. Tail 52" long in p.a. 313 deg.
Alexander Baransky, Kyiv comet station (MPC 585), Ukraine
- C/2019 Q4 Borisov 2019 October 12 3.21 UT, 22x90sec.12"/4 ASI 1600 2x2
Michael Jäger Weißenkirchen
- C/2019 Q4 Borisov 2019 October 12 Processing HST images, Camera WFC3, Filter F350LP, Exp. 1.7 hr. (24x260), Remote,
NASA, ESA, HST, D. Jewitt, José J. Chambó
- C/2019 Q4 Borisov 2019 October 11 3.40 UT, 12x90sec.12"/4 ASI 1600
Michael Jäger Weißenkirchen
- C/2019 Q4 Borisov 2019 October 11 2.55 UT, GIF 45x90sec.12"/4 ASI 1600
Michael Jäger Weißenkirchen
- C/2019 Q4 Borisov 2019 October 11 03.15 - 04.18 UT, Clear, 6x600s comet tracking, ASA 12"f/3.6, G4-16000EC, Südfrankreich, Remote,
Martin Nischang
- C/2019 Q4 Borisov 2019 October 11 03.15 - 04.18 UT, Clear, 6x600s comet tracking, animated, ASA 12"f/3.6, G4-16000EC, Südfrankreich, Remote,
Martin Nischang
- C/2019 Q4 Borisov 2019 October 10 05:20 UT, 14 min. total exposure, Planewave 20" CDK, FLI PL09000, Remote,
José J. Chambó
- C/2019 Q4 Borisov 2019 October 09 03:13 UT, t=44 Minuten (22x2min) Teleskop: D=0.6m, f/D=3, Uni Sternwarte Jena, Deutschland Instrument: STK (R-Band)
Markus Mugrauer & Elias Wahl
- C/2019 Q4 Borisov 2019 October 08 2.57 UT, 19x3min 8"/2.0 RASA ASI 1600 filter red 1x1 bin clouds
Michael Jäger Weißenkirchen
- C/2019 Q4 Borisov 2019 October 04 3.00 UT, 25x2 min 8"/2 RASA ASI 1600
Michael Jäger Weißenkirchen
- C/2019 Q4 Borisov 2019 October 04 12:44 UT, 7 min. total exposure, Planewave 24" CDK, FLI PL09000, Remote,
José J. Chambó
- C/2019 Q4 Borisov 2019 October 02 02:25:43 UT, 600s. exp.(10x60s), 0.7-m (f/4) L + CCD PL47-10 FLI+R filter, 0.95"/pixel. m1=16.9, Coma 18", DC 3. Tail 42" long spread in p.a. 307-356 deg., slightly curved CCW.
Alexander Baransky, Kyiv comet station (MPC 585), Ukraine
- C/2019 Q4 Borisov 2019 September 29 02:36 UT, 10 x 300 Sek., ASA 8"f2.8, FLI ML8300 CCD, Remote Südfrankreich, Remote,
David Bender
- C/2019 Q4 Borisov 2019 September 24 02:11:05 UT, 600s. exp.(10x60s), 0.7-m (f/4) L + CCD PL47-10 FLI+R filter, 0.95"/pixel. m1=17.1, Coma 20", DC 3.
Alexander Baransky, Kyiv comet station (MPC 585), Ukraine
- C/2019 Q4 Borisov 2019 September 22 02.43-03.17 UT, 4x450sec., C14 Edge HD + Hyperstar f/1.9, ZWO ASI 1600 MM Pro, Schwentinental
Daniel Köhn
- C/2019 Q4 Borisov 2019 September 21 2.58 UT, 21x120sec.12"/4 Sigma 6303 CCD
Michael Jäger Weißenkirchen
- C/2019 Q4 Borisov 2019 September 21 2.11-3.20 UT, GIF 12"/4 Sigma 6303 CCD
Michael Jäger Weißenkirchen
- C/2019 Q4 Borisov 2019 September 21 02.54 - 03.42 UT, 19 x 2 min, ISO800, Canon EOS 6D MkII, TSAPO100Q, Köditz centered on comet
Steffen Fritsche
- C/2019 Q4 Borisov 2019 September 20 2.05 UT, 42x2min 12"/4 Sigma 6303 CCD
Michael Jäger Weißenkirchen
- C/2019 Q4 Borisov 2019 September 19 02:14:43 UT, 600s. exp.(10x60s), 0.7-m (f/4) L + CCD PL47-10 FLI+R filter, 0.95"/pixel. m1=17.4, Coma 18", DC 3. Tail 22" in p.a. 314 deg.
Alexander Baransky, Kyiv comet station (MPC 585), Ukraine
- C/2019 Q4 Borisov 2019 September 18 2.05 UT, 40x90sec.12"/4 CCD
Michael Jäger Weißenkirchen
- C/2019 Q4 Borisov 2019 September 18 3.00 UT, 24x90sec.12"/4 CCD
Michael Jäger Weißenkirchen
- C/2019 Q4 Borisov 2019 September 16 2.55 UT, 20x100sec.12"/4 CCD
Michael Jäger Weißenkirchen
- C/2019 Q4 Borisov 2019 September 16 2.55 UT, 20x100sec.12"/4 CCD
Michael Jäger Weißenkirchen
- C/2019 Q4 Borisov 2019 September 15 01:59:43 UT, 960s. exp.(16x60s), 0.7-m (f/4) L + CCD PL47-10 FLI+R filter, 0.95"/pixel. m1=17.2, Coma 16", DC 4. Tail 48" in p.a. 317 deg. Drop-shaped coma.
Alexander Baransky, Kyiv comet station (MPC 585), Ukraine
- C/2019 Q4 Borisov 2019 September 14 04:08 UT, 12 x 120s 0.4-m f/3.8 Orion Optics AG16 Newton SBIG STL-6303E B96 - BRIXIIS, Belgium
Erik Bryssinck
- C/2019 Q4 Borisov 2019 September 13 02:01:08 UT, 900s. exp.(15x60s), 0.7-m (f/4) L + CCD PL47-10 FLI+R filter, 0.95"/pixel. m1=17.4, Coma 17", DC 3. Tail 30" in p.a. 320 deg.
Alexander Baransky, Kyiv comet station (MPC 585), Ukraine
- C/2019 Q4 Borisov 2019 September 12 2.42 UT, 5x100sec.12"/4 Sigma 6303 CCD
Michael Jäger Weißenkirchen
- C/2019 Q4 Borisov 2019 September 12 11:08 UT, Planewave 17", FLI PL6303E, L=3x120 bin2 + RGB=1x60 bin2,
José J. Chambó
- C/2019 Q4 Borisov 2019 September 11 02:01:28 UT, 1140s. exp.(19x60s), 0.7-m (f/4) L + CCD PL47-10 FLI+R filter, 0.95"/pixel. m1=17.5, Coma 15", DC 5. Tail 34" long spread in p.a. 274-326 deg.
Alexander Baransky, Kyiv comet station (MPC 585), Ukraine
- C/2019 Q4 Borisov 2019 September 04 2.57 UT, 9x100sec.16"/3.2 Sigma 6303 CCD
Michael Jäger Weißenkirchen
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