• 90P/Gehrels 1   2018 January 15 23:03:01 UT, 1140s exp.(19x60s), 0.7-m (f/4) L + FLI PL47-10 + R filter, 0.95"/pixel. m1=16.8, Coma 15", DC 5. Fan-shaped coma spread in p.a. 21-93 deg. Kyiv comet station (MPC 585). Alexander Baransky, Ukraine
• 90P/Gehrels 1   2018 January 08 23:39:58 UT, 1140s exp.(19x60s), 0.7-m (f/4) L + FLI PL47-10 + R filter. m1=17.0, Coma 21", DC 5. Fan-shaped coma spread in PA 351-97 deg. Kyiv comet station (MPC 585). Alexander Baransky, Ukraine
• 90P/Gehrels 1   2017 December 09 07:44 UT, Planewave 510mm CDK f/4,5, FLI PL11002M, 300s, T 16,9 mag, N 17,5 mag (10"x10"-Box: 17,29 mag), Afroh 125, Mayhill, New Mexico, Remote, Michael Hauss
• 90P/Gehrels 1   2017 December 09 00:19:43 UT, 780s exp.(13x60s), 0.7-m (f/4) L + FLI PL47-10 + R. m1=16.4, Coma 27", DC S5. Tail spread in PA 235-316 deg., more extend (1.3 min. long) in PA 268 deg. Kyiv comet station (MPC 585). Alexander Baransky, Ukraine
• 90P/Gehrels 1   2017 November 26 08:05 UT, Planewave 510mm CDK f/4,5, FLI PL11002M, 300s, T 17,7 mag, N 18,0 mag (10"x10"-Box: 17,50 mag), Afroh 55, Mayhill, New Mexico, Remote, Michael Hauss
• 90P/Gehrels 1   2017 November 24 01:48:46 UT, 480s exp.(8x60s), 0.7-m (f/4) L + FLI PL47-10 + R filter, 0.95"/pixel. m1=16.9, Coma 14", DC S6. Tail 1 min. long in p.a. 254 deg. Kyiv comet station (MPC 585). Alexander Baransky, Ukraine
• 90P/Gehrels 1   2017 October 18 02:30 UT, 4x 5min, 16" f/2.5, SBIG 8300M Roland Fichtl
• 90P/Gehrels 1   2017 October 15 01.33 - 01.57 UT, 11 x 120s ISO3200, TSAPO100Q (100x580mm), CanonEOS 700da mit Astronomik UV-IR-Blockfilter, Köditz Steffen Fritsche
• 90P/Gehrels 1   2017 October 15 22:34-23:03 UT, 25cm F/3.3 Deltagraph + Fuji XT20 31x30s ISO 25600 Schweinitz im Fläming Uwe Wohlrab
• 90P/Gehrels 1   2017 October 01 1.50 UT, 4x300sec.12"/4 G3 16200 Michael Jäger
• 90P/Gehrels 1   2017 October 01 1.50 UT, 3x300sec.12"/4 G3 16200 Michael Jäger
• 90P/Gehrels 1   2017 September 28 02:06:16 UT, 950s exp., 0.7-m (f/4) L + CCD PL47-10 FLI + R filter, 0.95"/pixel. m1=16.5, Coma 14", DC 5. Weak tail 1 min. long in p.a. 262 deg. Kyiv comet station (MPC 585). Alexander Baransky, Ukraine
• 90P/Gehrels 1   2017 September 26 01:18:49 UT, 660s exp.(11x60s), 0.7-m (f/4) L + CCD PL47-10 FLI + R filter, 0.95"/pixel. m1=16.7, Coma 16", DC S5. Short, fan-shaped tail 22" long spead in p.a. 263-327 deg. MPC 585. Alexander Baransky, Ukraine
• 90P/Gehrels 1   2017 September 25 01:51 UT, 6 x 120s 0.4-m f/3.8 Orion Optics AG16 Newton SBIG STL-6303E B96 - BRIXIIS, Belgium Erik Bryssinck
• 90P/Gehrels 1   2017 September 20 11:29 UT, 2x600s, 11" SCT f/6.4, STF-8300M, Mike Olason, Denver Colorado
• 90P/Gehrels 1   2017 September 17 01:42:49 UT, 660s exp.(11x60s), 0.7-m (f/4) L + CCD PL47-10 FLI + R filter, 0.95"/pixel. m1=16.8, Coma 14", DC S5. Short, fan-shaped tail 20" long spead in p.a. 260-327 deg. MPC 585. Alexander Baransky, Ukraine
• 90P/Gehrels 1   2017 September 16 01:24:31 UT, 1020s exp.(17x60s), 0.7-m (f/4) L + FLI PL47-10 + R filter, 0.95"/pixel. m1=16.9, Coma 14", DC S5. Short, fan-shaped tail 20" long spead in p.a. 267-328 deg. Kyiv comet station (MPC 585). Alexander Baransky, Ukraine
• 90P/Gehrels 1   2002 November 12 Nov. 12. 2002 UT. 26 min ab 22:51 UT. Deltagraph 300/1000mm. Michael Jäger
• 90P/Gehrels 1   2002 October 05 Oct. 05.000 2002 UT. Komposit 2x26 min. Deltagraph 300/1000mm. Michael Jäger

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