stereohunter at Yahoo! Groups

Comet in Hi1B and HI1A - Known SOHO

alan — Thu, 19 Nov 2009 01:58:45 GMT

Gidday all, The Five known SOHO comets from NOV10-16 are all detectable in both the HI1A and HI1B imager, so with the C3 measures could have a higher presision

Re: 169P/NEAT brighter.

Juan José González Suárez — Wed, 18 Nov 2009 23:45:45 GMT

Karl, I've observed 169P in the previous aparition ( under similar circumstances ) in the morning twilight: - 2005 Sep. 14.19 UT: m1=10.3, Dia.=3', DC=2/ , 20

Re: 169P/NEAT brighter.

Karl Battams — Wed, 18 Nov 2009 23:22:05 GMT

J.J., Many thanks for the report. I was beginning to think that the brightness I reported to Brian in HI1-B was due entirely to forward scattering. This

Re: 169P/NEAT brighter.

Juan José González Suárez — Wed, 18 Nov 2009 22:58:12 GMT

Karl, Robert, Dimitry, The comet is significantly brighter than expected. Here is my recent visual estimate from dark mountain skies: 169P/NEAT: 2009 Nov.

Re: Comet in Hi1B - 20091115 - Known SOHO

Alan Watson — Wed, 18 Nov 2009 00:56:53 GMT

FYI rgds Alan Known SOHO C3?? 20091116 (0,0) upleft image pixvalue x y slice 1 200911:20091115_232901_s4h1B 31.9431 73 763 36 2

Re: 169P

Dimitry Chestnov — Tue, 17 Nov 2009 01:52:46 GMT

... The brightness of 169P is in agreement with Seiichi Yoshida's prediction: http://www.aerith.net/comet/catalog/0169P/2009.html

Re: Comet in HI1B - Unkown non-group

Alan Watson — Tue, 17 Nov 2009 01:50:18 GMT

Gidday Karl, Thanks for the follow up, (awe... shucks). Yes , My Starry night settings agree with this now, they were a day out. What were the odds of a good

169P/NEAT

Matson, Robert D. — Tue, 17 Nov 2009 01:46:51 GMT

Explains why it hasn't been visible in C3 -- it would be way out of the field of view to the left... --Rob ... From: stereohunter@yahoogroups.com

Re: Comet in HI1B - Unkown non-group

karlbattams — Tue, 17 Nov 2009 01:41:09 GMT

Alan and all, The "unknown" non-group comet has been confirmed by Brian Marsden... confirmed to be 169P/NEAT! Sorry Alan! It does seem to be much brighter

Re: Comet in Hi1A - 20091114 - Known SOHO

Alan Watson — Tue, 17 Nov 2009 01:37:42 GMT

Inbound Kreutz , probably known SOHO(20091115) already. FYI rgds alan. (0,0) upleft image pixvlaue x y slice 1 200911:20091114_220901_s4h1A 23.8642 948 803

Re: Comet in HI1B - Unkown non-group

Alan Watson — Tue, 17 Nov 2009 00:41:40 GMT

Gidday Dimitry, Please find attached a plot for the two comets seen ionn HI1b for 20091113 < Please also explain how to do flat-field calibration for STEREO

Re: Comet in HI1B - Unkown non-group

Dimitry Chestnov — Tue, 17 Nov 2009 00:10:28 GMT

Hi Alan, I cannot see both objects reported by you. Your pixel coordinate system is strange for me. Please explain your report format. But I see two objects on

Comet in HI1B - Unkown non-group

alan — Mon, 16 Nov 2009 21:01:34 GMT

This has been reported to Mr Sungrazer already. A very bright comet is moving top left quater. Unknown , non group. rgds Alan Watson (0,0) up left image pix

Comet in Hi1A - 20091113 - Known SOHO

Alan Watson — Sun, 15 Nov 2009 22:02:57 GMT

Kreutz season has started in HI1A, fYI, rgds Alan Nov 13 2009 11:15:14 Zhijian Xu (0,0) upleft image pixvlaue x y slice 1 200911:20091113_100901_s4h1A

Re: Comet in Hi1A - 20091107-8 - C/2006 W3 - Christensen

Alan Watson — Tue, 10 Nov 2009 22:01:04 GMT

Yep I did it again this is a HI1a comet. rgds ALan. ... From: Alan Watson To: stereohunter@yahoogroups.com Sent: Wednesday, November 11, 2009 8:49 AM Subject: