[meteorite-list] comet Holmes 17P

From: Jan Hattenbach <jan.hattenbach_at_meteoritecentral.com>
Date: Fri, 26 Oct 2007 16:59:03 +0200
Message-ID: <1855834597_at_web.de>

Hi list,

I was able to observe the comet last night. The southern hemisphere is disfavoured, we have clear skies though...

It is a bright star for the unaided eye, in a 10x50 it appears as a small bright circular disk. The 4" Newtonian reveals a circular disk with a bright center, just outside the center of the disk.

I made some fotos. I used a Canon EOS 350D digital camera and a 300m lens, took 30 exposures of 1" each and stacked. Then I used a Larson-Sekanina algorithm to reveal a shell structure, yet no eruptions or jets.

Look here for the pics: (the german words are the same what I described here, basically):

(scoll down)

http://www.meteoros.de/php/viewtopic.php?p=23601#23601

Clear skies,

Jan
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Received on Fri 26 Oct 2007 10:59:03 AM PDT