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Originally posted by sticky
I don't see anything at all. It's just a nebula with a few stars mingled in that give it shape effects. You gotta circle them in paint or something to explain what you're looking at.
The use of interference filters - which select their passband by reflecting the rest of the light - results in haloes around bright sources. These haloes look like images of the entrance pupil of the telescope with the secondary mirror spider clearly visible, especially when the seeing is good.
Originally posted by jennybee35
reply to post by Maybe...maybe not
So, MM, didja ever find anything that would explain these weird things on the images? I never really found anything else worthwhile on the observatory.