• 221P/LINEAR   2015 September 20 19:36 UT, 7 x120s 0.4-m f/3.8 Orion Optics AG16 Newton SBIG STL-6303E B96 - BRIXIIS, Belgium Erik Bryssinck
• 221P/LINEAR   2015 September 14 18:58:43 UT, 1080s exp. (18x60s), 0.7-m (f/4) + FLI PL47-10 + R filter, m1=17.0, Coma 12", DC S6. Tail 35" PA 96. Kyiv comet station (MPC 585) Alexander Baransky, Ukraine
• 221P/LINEAR   2015 September 10 20:40 UT, 7 x 120s 0.4-m f/3.8 Orion Optics AG16 Newton SBIG STL-6303E B96 - BRIXIIS, Belgium Erik Bryssinck
• 221P/LINEAR   2015 September 09 18:35:38 UT, 1020s exp. (17x60s), 0.7-m (f/4) + FLI PL47-10 + R filter, m1=16.9, Coma 12", DC 6. Tail 18" PA 88. Kyiv comet station (MPC 585) Alexander Baransky, Ukraine
• 221P/LINEAR   2015 August 22 20:40 UT, 7 x 120s 0.4-m f/3.8 Orion Optics AG16 Newton SBIG STL-6303E B96 - BRIXIIS, Belgium Erik Bryssinck
• 221P/LINEAR   2015 August 17 19:56:01 UT, 660s exp. (11x60s), 0.7-m (f/4) L + FLI PL47-10 + R filter, m1=16.1, Koma 20", DC 7. Schweif 30" PW 86-140. Kyiv comet station (MPC 585) Alexander Baransky, Ukraine
• 221P/LINEAR   2015 August 10 11:58 UT, Warrumbungle 0,51m Cassegrain f/6,8, SBIG STL6303E, 120s, 16,3 mag (10“x10“-Box 17,0), Afroh 24, Australien, Remote, Michael Hauss
• 221P/LINEAR   2015 August 06 20:46 UT, 7 x 120s 0.4-m f/3.8 Orion Optics AG16 Newton SBIG STL-6303E B96 - BRIXIIS, Belgium Erik Bryssinck
• 221P/LINEAR   2015 August 01 21:02 UT, 7 x 120s 0.4-m f/3.8 Orion Optics AG16 Newton SBIG STL-6303E B96 - BRIXIIS, Belgium Erik Bryssinck
• 221P/LINEAR   2015 July 16 22:30 UT, composed 3 300sec. exposures, 0.30-m f/5.64 + CCD, 16.55 mag, coma: 14", tail: 11" in PA91 by Bernhard Häusler, Maidbronn Bernhard Häusler
• 221P/LINEAR   2015 July 15 21:45 UT, 5 x 3min L, 10" f/3.6, SBIG 8300M Roland Fichtl
• 221P/LINEAR   2015 July 12 20.20 UT, 5"/f-8 FLI 8300 CCD 2x600sec Michael Jäger Farm Tivoli
• 221P/LINEAR   2015 July 09 21:45 UT, 7 x 120s 0.4-m f/3.8 Orion Optics AG16 Newton SBIG STL-6303E B96 - BRIXIIS, Belgium Erik Bryssinck
• 221P/LINEAR   2015 July 06 22:00 UT, 7 x 120s 0.4-m f/3.8 Orion Optics AG16 Newton SBIG STL-6303E B96 - BRIXIIS, Belgium Erik Bryssinck
• 221P/LINEAR   2015 June 08 22:56:01 UT, 1020s exp. (17x60), 0.7-m (f/4) + FLI PL47-10 + R filter, m1=15.7, Koma 20", DC 6, Schweif 1min .3, PW 246. Kyiv comet station (MPC 585) Alexander Baransky, Ukraine
• 221P/LINEAR   2015 June 06 22.08 UT, 3x360sec.10"/4.0 FLI 8300 CCD Michael Jäger
• 221P/LINEAR   2015 May 22 00:21:37 UT, 540s exp. (9x60), 0.7-m (f/4) + FLI PL47-10 + R filter, m1=15.4, Koma 10", DC 4, Schweif 16", PW 261-69, Kyiv comet station (MPC 585) Alexander Baransky, Ukraine
• 221P/LINEAR   2015 May 17 22.24 UT, 4x300 10"/4.0 FLI 8300 CCD Michael Jäger
• 221P/LINEAR   2015 April 25 00.33 UT, 5x270sec. 10"/4.0 FLI 8300 CCD Michael Jäger
• 221P/LINEAR   2002 June 02 .088 UT, 30cm f/3.3 Deltagraph, 22 min. Kodak Technical Pan hyp. Michael Jäger

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