• 261P/Larson   2019 December 04 20.42 - 21.35 UT, 20 x 2 min, ISO 800, Canon EOS 6D MkII, TSAPO100Q, Köditz centered on comet Steffen Fritsche
• 261P/Larson   2019 November 18 22h31 UT, 8x180s, 16" Ritchey Chrétien, Sbig STL1001e, Saint Jacques sur Darnétal, France Vauquelin Bruno, Saint Jacques sur Darnétal, France
• 261P/Larson   2019 November 05 21.26 - 22.39 UT, 16 x 4 min, ISO 800, Canon EOS 6D MkII, TSAPO100Q, Köditz centered on comet Steffen Fritsche
• 261P/Larson   2019 October 29 22:08 UT, 7 x 120s 0.4-m f/3.8 Orion Optics AG16 Newton SBIG STL-6303E B96 - BRIXIIS, Belgium Erik Bryssinck
• 261P/Larson   2019 October 27 00.37 UT, 8x150sec.8"/2.0 RASA ASI 1600 Michael Jäger Weißenkirchen
• 261P/Larson   2019 October 27 00.37 UT, det 8x150sec.8"/2.0 RASA ASI 1600 Michael Jäger Weißenkirchen
• 261P/Larson   2019 October 13 21:01:50 UT, 1500s exp. (25x60s), 0.7-m (f/4) L + CCD PL47-10 FLI + R filter, 0.95"/pixel. m1=16.9, Coma 17", DC 2. Faint tail 1 min. long spread in p.a. 242-261 deg. Alexander Baransky, Kyiv comet station (MPC 585), Ukraine
• 261P/Larson   2019 September 12 1.15 UT, 10x90sec.12"/4 Sigma 6303 CCD Michael Jäger Weißenkirchen
• 261P/Larson   2019 September 07 01:10-02:09 UT, 25cm F/3.3 Deltagraph + Fuji XT20 59x30s ISO 12800 Bräsen Uwe Wohlrab
• 261P/Larson   2019 September 03 02:10 UT, 6x3min, 16" f/2.5, CDS-5D Roland Fichtl
• 261P/Larson   2019 August 31 19:01 UT, 20" CDK f/4,5, FLI PL6303E, 300s, T 16,1 mag, N 17,7 mag (10"-Box 17,22 mag), Koma 34", Schweif 55" PA 260°, Siding Spring, Remote, Michael Hauss
• 261P/Larson   2019 August 29 01:25 UT, 5x3min, 16" f/2.5, CDS-5D Roland Fichtl
• 261P/Larson   2019 August 25 08:23 UT, Planewave 510mm CDK f/4,5, FLI PL11002M, 300s, T 17,0 mag, N 17,2 mag (10"-Box 17,33 mag), Mayhill, New Mexico, Remote, Michael Hauss
• 261P/Larson   2019 August 01 01:00 UT, 3x3min, 16" f/2.5, CDS-5D Roland Fichtl
• 261P/Larson   2012 September 16 20.27 UT, 8x270 sec. 14"/4.1 FLI 8300 CCD 2x2 bin Michael Jäger
• 261P/Larson   2012 September 14 23.04 UT, 4x300 sec. 14"/4.1 FLI 8300 CCD 2x2 bin Michael Jäger
• 261P/Larson   2012 September 08 00:52 UT, 7 x 180s 0.4-m f/3.8 Orion Optics AG16 Newton SBIG STL-6303E B96 - BRIXIIS, Belgium Erik Bryssinck
• 261P/Larson   2012 August 19 00:21 UT, 7 x 180s 0.4-m f/3.8 Orion Optics AG16 Newton SBIG STL-6303E B96 - BRIXIIS, Belgium Erik Bryssinck
• 261P/Larson   2012 August 17 22.13 UT, 14x330 sec. 10" f/3.8 Newton, FLI 8300 CCD Michael Jäger
• 261P/Larson   2012 August 14 34.43 UT, 5x360 sec. 14" f/3.1 Newton, Sigma 6303 CCD Michael Jäger
• 261P/Larson   2012 July 27 23.06 8x360 sec. 10" f/3.8 Newton, FLI 8300 CCD Michael Jäger

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