Thread: New to me! Thought I would share... Tadpole bubble!
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Old 06-06-2023, 11:37 AM
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joshman (Josh)
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Join Date: Aug 2007
Location: Coffs Harbour, Australia
Posts: 750
I believe that is an artifact. A filter halo that is left behind when doing star removal. I've got the same artifact with my Baader 7nm OIII filter on my 1600MM.

sorry to burst your bubble....
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