[vsnet-alert 5867] (fwd) Strange Star Near M51

[Taichi Kato <tkato>]

(fwd) Strange Star Near M51

From: Lenny Abbey <labbey@mindspring.com>
Date: Thu, 10 May 2001 03:30:50 -0400

I am appending a message from my local club email list. Does anyone have 
any suggestions as to what might be going on?

Lenny


-------------------------------------------------
Lenny Abbey
Atlanta, Georgia
404-634-1222

Last Friday at Villa Rica I decided to try my luck at photographing
m51. I was able to get two exposures--the first was 30 minutes, the
second was 45. After I got them developed I scanned them into
Photoshop for some editing. As I was stacking the images, I noticed
something very peculiar. In the second exposure there is a star
missing! Thinking that this might not have been a real star (maybe
the result of bad development) I checked some other images of this
field and found that it is in fact a real star. So my question is,
what could have happened to the second exposure to make this star
disappear? Here is a link to the two images for comparison:

http://personal.atl.bellsouth.net/~dabar/m51.htm

Thanks in advance for any suggestions.
David Barmore

PS...I'll also post the composite image to the files section. Please
let me know what you think. This was only my third roll of prime
focus DSO's. Any comments would be greatly appreciated.

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