Thread: NGC 3372 in Ha
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  #10  
Old 11-03-2017, 11:44 PM
JA
.....

JA is offline
 
Join Date: Oct 2016
Location: Melbourne, Australia
Posts: 3,052
Quote:
Originally Posted by Camelopardalis View Post
Looks like astigmatism to me. If it was field curvature, the stars would just bloat as they become out of focus.

Doesn't detract from being a nice image
It's only visible in the extreme corners, and then only when you really zoom in. It looks like coma, but .....

It's a great image

Best
JA
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