British Astronomical Association
Comet Section

2011 News

Jan 07  Zhijian Xu reports a Kreutz group comet in real time C3 images
Jan 12  Steve Larson discovers comet 2011 A1
Jan 13  Masanori Uchina reports a Kreutz group comet in real time C3 images
Jan 13  Alexander Godunov reports a Kreutz group comet in real time C3 images
Jan 15  Masanori Uchina reports a Meyer group comet in C2 images
Jan 15  Shishir Deshmukh and Arkadiusz Kubczak report a Kreutz group comet in real time C3 images
Jan 16  Masanori Uchina reports two Kreutz group comets in real time C3 images
Jan 17  Alex Gibbs discovers 2011 A3
Jan 17  Leonid Elenin recovers 2006 U1 (P/LINEAR) as 2011 A4
Jan 19  Michal Kusiak and Masanori Uchina report a Kreutz group comet in real time C3 images
Jan 21  Bo Zhou and Shishir Deshmukh report a Kreutz group comet in real time C3 images
Jan 23  Michal Kusiak and Hanjie Tan report a Kreutz group comet in real time C3 images
Jan 23  Rainer Kracht reports a non group comet in real time C2 images
Jan 24  Michal Kusiak and Masanori Uchina report a Kreutz group comet in real time C3 images
Jan 30  Zhijian Xu reports a Kreutz group comet in real time C3 images
Feb 01  Michal Kusiak reports a Kreutz group comet in real time C3 images
Feb 02  Alexander Godunov reports a Kreutz group comet in real time C3 images
Feb 04  Sergei Schmalz reports a Kreutz group comet in real time C3 images
Feb 05  Zhijian Xu reports a Kreutz group comet in real time C3 images
Feb 09  Bo Zhou reports a non-group comet in real time C3 images
Feb 12  Rob McNaught discovers 2011 C1
Feb 13  Masanori Uchina reports a Kreutz group comet in real time C3 images
Feb 15  Stardust encounters 9P/Tempel and returns images showing change
Feb 15  Alex Gibbs discovers faint periodic comet 2011 C2
Feb 16  Alex Gibbs discovers faint comet 2011 C3
Feb 22  Masanori Uchina reports a Kreutz group comet in real time C3 images
Feb 23  Szymon Liwo reports a Kreutz group comet in real time C3 images
Feb 25  Hua Su reports a Kreutz group comet in near real time C3 images
Feb 26  Bo Zhou reports a Kreutz group comet in real time C3 images
Feb 26  Alexander Godunov reports a Kreutz group comet in real time C3 images
Feb 27  Masanori Uchina reports a Meyer group comet in real time C2 images
Feb 27  Zhijian Xu reports a Kreutz group comet in real time C3 images
Mar 02  Shishir Deshmukh reports a Kreutz group comet in real time C3 images
Mar 09  Rainer Kracht reports a Kracht group comet in real time C3 images
Mar 12  Shishir Deshmukh and Bo Zhou report a Kreutz group comet in real time C3 images
Mar 13  Rainer Kracht reports a non-group comet in delayed time C2 images
Mar 21  LINEAR discovers comet 2011 F1
Mar 22  Rafal Reszelewski reports a Kreutz group comet in real time C3 images
Mar 25  Bo Zhou reports a Kreutz group comet in delayed time C2 images
Mar 29  Shishir Deshmukh reports a Kreutz group comet in real time C2 images
Apr 06  Masanori Uchina reports a Kreutz group comet in real time C3 images
Apr 06  Rob McNaught discovers comet 2011 G1
Apr 08  Zhijian Xu and Szymon Liwo report a Kreutz group comet in real time C3 images
Apr 14  Masanori Uchina reports a Kreutz group comet in real time C2 images
Apr 15  Arkadiusz Kubczak reports a Kreutz group comet in real time C2 images
Apr 18  Szymon Liwo reports a Meyer group comet in real time C2 images
Apr 18  Michal Kusiak reports a Kreutz group comet in real time C2 images
Apr 18  Bo Zhou reports a Kreutz group comet in real time C2 images
Apr 19  Michal Kusiak reports a Meyer group comet in real time C2 images
Apr 20  Jiangao Ruan reports a Kreutz group comet in delayed C2 images
Apr 20  Zhijian Xu reports a Kreutz group comet in delayed C2 images
Apr 20  Bo Zhou reports a Kreutz group comet in archival C3 images
Apr 21  Szymon Liwo reports a Kreutz group comet in real time C2 images
Apr 23  Zhijian Xu reports a Kreutz group comet in real time C2 images
Apr 24  Michal Kusiak reports a Kreutz group comet in real time C2 images
Apr 25  Masanori Uchina reports a Kreutz group comet in real time C2 images
Apr 25  Bo Zhou reports two Kreutz group comets in real time C2 images
Apr 25  Jiangao Ruan and Zhijian Xu report a Kreutz group comet in real time C2 images
Apr 26  Alexander Godunov reports a Kreutz group comet in real time C2 images
Apr 28  Michal Kusiak and Szymon Liwo report a Kreutz group comet in real time C2 images
Apr 30  Zhijian Xu reports a Meyer group comet in real time C2 images
May 01  Zhijian Xu reports a Kreutz group comet in real time C2 images
May 05  Comet 2011 H1 discovered at Mt Lemmon
May 05  Masanori Uchina reports a Kreutz group comet in real time C2 images
May 06  2004 HC18 (P/LINEAR) recovered as 2011 J1
May 07  LINEAR discovers faint comet 2011 J2
May 09  Sergey Shurpakov reports a Kreutz group comet in real time C3 images
May 10  Michal Kusiak reports a Kreutz group comet in real time C2 images
May 12  Keith Nakonechny reports a Kreutz group comet in real time C2 images
May 13  Masanori Uchina reports a Kreutz group comet in real time C3 images
May 14  Szymon Liwo reports a Kreutz group comet in real time C2 images
May 14  Zhijian Xu reports a Kreutz group comet in real time C3 images
May 14  Masanori Uchina reports a non-group comet in real time C2 images
May 18  Alexander Godunov reports a Kreutz group comet in real time C3 images
May 18  Rainer Kracht and Sergei Schmalz report a Kreutz group comet in real time C2 images
May 20  Masanori Uchina reports a Marsden group comet in real time C2 images
May 20  Sergey Shurpakov reports a Kreutz group comet in real time C3 images
May 20  LINEAR discovers faint comet 2011 J3
May 21  Michal Kusiak and Zhijian Xu report a Kreutz group comet in real time C2 images
May 21  Szymon Liwo reports a Kreutz group comet in real time C2 images
May 21  Bo Zhou reports two Kreutz group comets in real time C2 images
May 22  Sergei Schmalz reports a Kreutz group comet in real time C2 images
May 22  Sergei Schmalz and Szymon Liwo report a Kreutz group comet in real time C2 images
May 24  Bo Zhou reports a Kreutz group comet in real time C2 images
May 25  Rainer Kracht reports a Meyer group comet in real time C2 images
May 26  Michal Kusiak, Sergei Schmalz and Sergey Shurpakov report a Kreutz group comet in real time C2 images
May 26  Michal Kusiak reports a Kreutz group comet in real time C2 images
May 30  Michal Kusiak reports a Meyer group comet in real time C2 images
May 31  Andrea Boattini and Spacewatch discover comet 2011 JB15
May 31  Michael Schwartz and Paulo Holvorcem discover comet 2011 K1
Jun 01  Zhijian Xu reports a Kreutz group comet in real time C2 images
Jun 02  Masanori Uchina reports a Kreutz group comet in real time C3 images
Jun 04  Alexander Godunov reports a Kreutz group comet in real time C3 images
Jun 05  Sergei Schmalz reports a Kreutz group comet in real time C2 images
Jun 06  Alexander Godunov reports a Kreutz group comet in real time C3 images
Jun 06  Masanori Uchina reports a Kreutz group comet in real time C3 images
Jun 06  Michal Kusiak and Sergei Schmalz report a Kreutz group comet in real time C2 images
Jun 06  Rob McNaught discovers comet 2011 L1
Jun 06  Rob McNaught discovers comet 2011 L2
Jun 06  Rob McNaught discovers comet 2011 L3
Jun 07  Michal Kusiak reports a Kreutz group comet in real time C2 images
Jun 07  Bo Zhou reports a Kreutz group comet in real time C2 images
Jun 08  Pan-STARRS discovers comet 2011 L4
Jun 09  Sergei Schmalz reports a Kreutz group comet in real time C2 images
Jun 09  Michal Kusiak reports a Kreutz group comet in real time C2 images
Jun 09  Zhijian Xu, Masanori Uchina and Sergey Schmalz reports a Kreutz group comet in real time C2 images
Jun 10  Rainer Kracht reports a Marsden group comet in real time C2 images
Jun 11  Spacewatch recovers 2000 G1 as 2011 L5
Jun 11  Andrea Boattini discovers faint comet 2011 L6
Jun 15  Masanori Uchina reports a Kreutz group comet in real time C3 images
Jun 15  Szymon Liwo reports a Kreutz group comet in real time C3 images
Jun 15  Zhijian Xu reports a Kreutz group comet in real time C2 images
Jun 18  Michal Kusiak reports a Kreutz group comet in real time C2 images
Jun 20  Sergei Schmalz reports a Kreutz group comet in real time C2 images
Jun 20  Bo Zhou reports a Kreutz group comet in real time C2 images
Jun 22  Masanori Uchina reports a Kreutz group comet in real time C2 images
Jun 25  LINEAR discovers comet 2011 M1
Jun 28  Sergei Schmalz reports a Kreutz group comet in real time C2 images
Jun 28  Zhijian Xu and Sergey Shurpakov report a Kreutz group comet in real time C3 images
Jun 29  Bo Zhou reports a Kreutz group comet in C2 images from June 27
Jun 30  Rainer Kracht reports a non-group comet in real time C2 images
Jul 04  Masanori Uchina reports a Kreutz group comet in real time C3 images
Jul 04  Michal Kusiak reports a Kreutz group comet in real time C3 images
Jul 06  Bo Zhou reports a Kreutz group comet in C2 image
Jul 07  Periodic comet 2011 N1 discovered
Jul 07  Rob McNaught discovers comet 2011 N2
Jul 08  Sergey Shurpakov reports a Kreutz group comet in real time C3 images
Jul 11  Masanori Uchina reports a Meyer group comet in real time C2 images
Jul 12  Zhijian Xu reports a Kreutz group comet in real time C3 images
Jul 13  Sergei Schmalz and Michal Kusiak report a Kreutz group comet in real time C3 images
Jul 14  Sergei Schmalz reports a Meyer group comet in real time C2 images
Jul 16  Zhijian Xu reports a Meyer group comet in real time C2 images
Jul 17  Alan Watson reports a Marsden group comet in real time C3 images.  This is the return of 2000 C4 == 2005 W1.
Jul 19  Leonid Elenin discovers periodic comet 2011 NO1
Jul 26  Peiyuan Sun reports a Kreutz group comet in real time C3 images
Aug 01  Alexander Godunov reports a Kreutz group comet in real time C3 images
Aug 02  LINEAR discovers comet 2011 O1
Aug 03  Zhijian Xu, Szymon Liwo and S Shurpakov report a Kreutz group comet in real time C3 images
Aug 04  Zhijian Xu reports a Kreutz group comet in real time C3 images
Aug 04  Rob McNaught discovers comet 2011 P1
Aug 05  2010 JC81 discovered by WISE in 2010 May shown to be a comet
Aug 06  Masanori Uchina reports a Kreutz group comet in real time C3 images
Aug 07  Pan-STARRS discovers faint comet 2011 P2
Aug 09  Sergey Shurpakov reports a Kreutz group comet in real time C3 images
Aug 09  Alexander Godunov reports a Kreutz group comet in real time C3 images
Aug 11  Masanori Uchina reports a Kreutz group comet in real time C3 images
Aug 13  Sergey Shurpakov reports a Kreutz group comet in real time C3 images
Aug 16  Bo Zhou reports a Kreutz group comet in real time C3 images
Aug 18  Bo Zhou reports a Kreutz group comet in real time C3 images
Aug 19  Szymon Liwo, Michal Kusiak and Zhijian Xu report a Kreutz group comet in real time C3 images
Aug 19  Michal Kusiak reports a Kreutz group comet in real time C3 images
Aug 21  Zhijian Xu reports a Kreutz group comet in real time C3 images
Aug 22  Pan-STARRS discovers faint comet 2011 Q1
Aug 24  Masanori Uchina reports a Kreutz group comet in real time C3 images
Aug 24  Bo Zhou reports a Kreutz group comet in delayed C3 images
Aug 25  Shishir Deshmukh reports a Kreutz group comet in real time C3 images
Aug 30  Rob McNaught discovers comet 2011 Q2
Aug 31  Sergey Shurpakov reports a Kreutz group comet in real time C3 images
Sep 01  Michal Kusiak reports a Kreutz group comet in real time C3 images
Sep 01  Rob McNaught discovers comet 2011 Q3
Sep 05  Rob McNaught discovers comet 2011 R1
Sep 05  Comet 2011 Q4 discovered with SWAN by Rob Matson and Vladimir Bezugly
Sep 05  Michal Kusiak and Zhijian Xu report a Kreutz group comet in real time C3 images
Sep 06  Bo Zhou reports a Kracht group comet in real time C2 images; this is the fourth return of 1999 R1
Sep 07  Pan-STARRS discovers comet P/2011 R2
Sep 07  Zhijian Xu and Sergei Schmalz report a Kreutz group comet in real time C3 images
Sep 07  Sergei Schmalz reports a Kreutz group comet in real time C3 images
Sep 09  Artyom Novichonok and Vladimir Gerke discover comet 2011 R3
Sep 13  Michal Kusiak and Sergei Schmalz report a Kreutz group comet in real time C3 images
Sep 14  Bo Zhou reports a Kreutz group comet in real time C3 images
Sep 16  Bo Zhou reports a Kreutz group comet in delayed C3 images
Sep 16  Bo Zhou reports a Meyer group comet in delayed C3 images
Sep 21  Alex Gibbs discovers comet 2011 S1
Sep 21  Bo Zhou reports a non-group comet in real time C3 images
Sep 23  Signs of cometary activity reported in asteroid 2011 CR42
Sep 30  Michal Kusiak, Bo Zhou, Szymon Liwo and Zhijian Xu report a bright Kreutz group comet in real time C3 images
Oct 02  Michal Kusiak reports a Kreutz group comet in real time C2 images
Oct 02  Catalina Sky Survey discovers comet 2011 S2
Oct 03  Zhijian Xu reports a Kreutz group comet in real time C3 images
Oct 08  Bo Zhou reports a Kreutz group comet in delayed C3 images
Oct 11  Sergey Shurpakov reports a Kreutz group comet in real time C3 images
Oct 11  Sergei Schmalz reports a Kreutz group comet in real time C2 images
Oct 11  Bo Zhou reports a Kreutz group comet in real time C2 images  
Oct 12  Michal Kusiak and Marek Kaluzny report a Kreutz group comet in real time C3 images
Oct 13  Bo Zhou and Masanori Uchina report a Kreutz group comet in real time C2 images
Oct 17  Sergei Schmalz reports a Kreutz group comet in real time C2 images
Oct 18  Michal Kusiak, Sergei Schmalz, Masanori Uchina report a Kreutz group comet in real time C3 images
Oct 21  Al Grauer finds LINEAR asteroid 2010 TO20 to be a comet
Oct 21  Michal Kusiak reports a Kreutz group comet in real time C3 images
Oct 22  Masanori Uchina reports a Kreutz group comet in real time C2 images
Oct 26  Pan-STARRS discovers periodic comet 2011 U1
Oct 26  Terry Bressi discovers faint comet 2011 U2 in Spacewatch images
Oct 27  Michal Kusiak reports a Kreutz group comet in real time C3 images
Oct 29  Sergei Schmalz reports a Kreutz group comet in real time C2 images
Oct 29  Szymon Liwo reports a Kreutz group comet in real time C3 images
Oct 30  Zhijian Xu reports a Kreutz group comet in real time C3 images
Oct 30  Michal Kusiak reports two Kreutz group comets in real time C2 images
Oct 30  Pan-STARRS discovers comet 2011 U3
Oct 30  Spacewatch and Pan-STARRS discover periodic comet 2011 UA134
Oct 31  Zhijian Xu and Masanori Uchina report a Kreutz group comet in real time C3 images
Nov 01  Bo Zhou reports a Kreutz group comet in real time C2 images
Nov 01  Rafal Reszelewski reports a Kreutz group comet in real time C3 images
Nov 02  Zhijian Xu reports a Kreutz group comet in real time C2 images
Nov 03  Andrea Boattini discovers faint periodic comet 2011 V1
Nov 05  Michal Kusiak and Peiyuan Sun report a Kreutz group comet in real time C2 images
Nov 06  Michal Kusiak, Sergei Schmalz and Zhijian Xu report a Kreutz group comet in real time C2 images
Nov 07  Sergei Schmalz reports a Kreutz group comet in real time C2 images
Nov 09  Sergei Schmalz reports a Kreutz group comet in real time C2 images
Nov 13  Michal Kusiak reports a Kreutz group comet in real time C2 images
Nov 14  Bo Zhou reports a Kreutz group comet in real time C2 images  
Nov 15  Sergei Schmalz reports a Kreutz group comet in real time C2 images
Nov 16  Szymon Liwo reports a Kreutz group comet in real time C2 images
Nov 16  Bo Zhou reports a Kreutz group comet in real time C3 images
Nov 17  Zhijian Xu reports two Kreutz group comets in real time C3 images
Nov 17  Michal Kusiak reports a Kreutz group comet in real time C2 images
Nov 21  Sergei Schmalz reports two Kreutz group comets in real time C2 images
Nov 22  Sergei Schmalz reports a Kreutz group comet in real time C3 images
Nov 25  Szymon Liwo reports a non-group comet in real time C2 images
Nov 28  Pan-STARRS discovers periodic comet 2011 W1
Nov 28  Sergei Schmalz reports a Kreutz group comet in real time C2 images
Nov 29  Claudine Rinner discovers P/2011 W2
Nov 29  Sergei Schmalz reports a Kreutz group comet in real time C2 images
Nov 29  Masanori Uchina reports a Kreutz group comet in real time C2 images
Nov 30  2010 UH55 confirmed as showing cometary features
Nov 30  Sergei Schmalz and Sergey Shurpakov report a Kreutz group comet in real time C3 images
Dec 01  Szymon Liwo, Michal Kusiak report a Kreutz group comet in real time C2 images
Dec 01  Michal Kusiak reports a Kreutz group comet in real time C2 images
Dec 01  Terry Lovejoy discovers an object with a retrograde orbit and small perihelion distance
Dec 02  The object is a Kreutz comet 2011 W3
Dec 03  Michal Kusiak, Szymon Liwo, Salil Mulye report a Kreutz group comet in real time C2 images
Dec 06  Sergei Schmalz reports a Kreutz group comet in real time C2 images
Dec 07  Jiangao Ruan reports a Kreutz group comet in real time C3 images
Dec 07  Zhijian Xu reports a Kreutz group comet in real time C3 images
Dec 08  Zhijian Xu reports a Kreutz group comet in real time C2 images
Dec 09  Bo Zhou reports a Kreutz group comet in real time C2 images
Dec 09  Sergei Schmalz reports a Kreutz group comet in real time C2 images
Dec 11  Sergei Schmalz and Jiangao Ruan report a Kreutz group comet in real time C2 images
Dec 11  Zhijian Xu and Jingjun Liu report a Kreutz group comet in real time C2 images
Dec 11  Rob Matson reports a Kreutz group comet in real time C3 images
Dec 13  Szymon Liwo and Salil Mulye report a Kreutz group comet in real time C3 images
Dec 13  Bo Zhou reports two Kreutz group comets in real time C3 images
Dec 13  Bo Zhou reports a Kreutz group comet in real time C2 images
Dec 14  Rafal Reszelewski reports a Kreutz group comet in real time C2 images
Dec 14  Sergei Schmalz reports a Kreutz group comet in real time C2 images
Dec 14  Zhijian Xu and Rafal Reszelewski report a Kreutz group comet (a fragment of 2011 W3) in real time C3 images
Dec 15  Bo Zhou reports a Kreutz group comet in real time C2 images
Dec 15  Sergei Schmalz reports a Kreutz group comet in real time C3 images
Dec 16  Bo Zhou reports a Kreutz group comet in real time C3 images
Dec 16  Szymon Liwo reports a Kreutz group comet in real time C2 images
Dec 16  Sergei Schmalz reports a Meyer group comet in real time C2 images
Dec 17  P/2006 T1 (Levy) recovered at Mt Lemmon, much fainter than expected
Dec 18  Michal Kusiak reports a Kreutz group comet in real time C3 images
Dec 20  Szymon Liwo reports a Kreutz group comet in real time C2 images
Dec 25  A happy Christmas to all from near Halley, Antarctica (76S, 27W)
Dec 25  Bo Zhou reports a Kreutz group comet in real time C3 images
Dec 25  Sergei Schmalz reports two Kreutz group comets in real time C2 images
Dec 26  Sergei Schmalz reports a Kreutz group comet in real time C3 images
Dec 26  Sergei Schmalz reports a Kreutz group comet in real time C2 images
Dec 28  Rafal Reszelewski reports a Kreutz group comet in real time C3 images
Dec 28  Andrea Boattini discovers periodic comet 2011 Y2
Dec 28  Andrea Boattini discovers comet 2011 Y3
Dec 28  LINEAR object 2011 UF305 confirmed as a comet
Dec 31  Sergei Schmalz reports a Kreutz group comet in real time C2 images