171P/Spahr
- 171P/Spahr 2019 February 26 18:48 UT, 8 x 120s 0.4-m f/3.8 Orion Optics AG16 Newton SBIG STL-6303E B96 - BRIXIIS, Belgium
Erik Bryssinck
- 171P/Spahr 2019 February 23 20.05 UT, 10x90 sec.12"/4 ASI 1600
Michael Jäger Weißenkirchen
- 171P/Spahr 2019 February 23 19:29 UT, 8 x 120s 0.4-m f/3.8 Orion Optics AG16 Newton SBIG STL-6303E B96 - BRIXIIS, Belgium
Erik Bryssinck
- 171P/Spahr 2019 February 03 22:13 UT, 10 x 120s 0.4-m f/3.8 Orion Optics AG16 Newton SBIG STL-6303E B96 - BRIXIIS, Belgium
Erik Bryssinck
- 171P/Spahr 2019 January 28 17.38 UT, 11x2min 8"/2.0 ASI 1600
Michael Jäger Weißenkirchen
- 171P/Spahr 2019 January 20 20:23 UT, 8 x 120s 0.4-m f/3.8 Orion Optics AG16 Newton SBIG STL-6303E B96 - BRIXIIS, Belgium
Erik Bryssinck
- 171P/Spahr 2018 October 15 01:52:37 (UT), 1440s exp.(12х120s), 0.7-m (f/4) L + FLI PL47- 10 + R filter, 0.95"/pixel. m1=17.8, Coma 7", DC S7. Fan-shaped tail 20" long spread in p.a. 47-167 deg.
Alexander Baransky, Kyiv comet station (MPC 585), Ukraine
- 171P/Spahr 2018 October 13 01:41:42 (UT), 1320s exp.(22х60s), 0.7-m (f/4) L + FLI PL47-10 + R filter, 0.95"/pixel. m1=17.9, Coma 9", DC 7.
Alexander Baransky, Kyiv comet station (MPC 585), Ukraine
- 171P/Spahr 2018 October 07 16:18 UT, Planewave 431mm CDK f/6,8, FLI PL16803, 300s, T 19,0: mag, N 19,1 mag (10"x10"-Box 19,14 mag), Siding Spring, Australia, Remote,
Michael Hauss
- 171P/Spahr 2018 September 18 02:35 UT, 5x 5min, 16" f/2.5, SBIG 8300M, bin2
Roland Fichtl
- 171P/Spahr 1999 January 17 21:10 UT, 225/255/435mm Schmidtkamera, 11 min. auf TP 6415 hyp, Koma 0,5min. , Ebenwaldhöhe/NÖ, Helligkeit: 14,3
Gerald Rhemann
- 171P/Spahr 1999 January 06 20:17 – 20:27 UT, 10" f=450mm, TP hyp, Koma 50", Helligkeit: 13,8
Michael Jäger
- 171P/Spahr 1998 December 09 20:30 UT, 225/255/435mm Schmidtkamera, 10 min. auf TP 6415 hyp, Weißenkirchen/NÖ, Helligkeit: 14,8
Gerald Rhemann
- 171P/Spahr 1998 December 09 21:04 – 21:14 UT, 10" f=450mm, TP hyp, Helligkeit: 14,2
Michael Jäger
- 171P/Spahr 1998 November 29 01:31 – 01:41 UT, 10" f=450mm, TP hyp
Michael Jäger
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