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Old 05-10-2021, 03:36 PM
JA
.....

JA is offline
 
Join Date: Oct 2016
Location: Melbourne, Australia
Posts: 3,052
Quote:
Originally Posted by meade expert View Post
HI

I would like to ask the group what things can cause square stars in an image.

The image was taken through a Vixen like scope 200mm f4 with thick spider vanes.

The camera was a asi533MC colour OSC with a Baader coma corrector.
As Bojan said, the diffraction spikes could certainly play in to the issue, especially with THICK vanes and maybe binning the image or cropping in too far /too hard etc... many possibilities.

You need more information to get to the root cause.

Best
JA
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