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Looks fine now. What was the problem?

I'm also curious about it because it's a cracking picture. Please share with us.

Edited by Gonzo

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Go on then, what was it? Lens cap still on? Shed roof still in place? Not looking at M31 by mistake?

Put us out of our misery, because this is a great shot of the main part of M31 - what did you have before?

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At first I was stuck with the image attached below. I thought it was an issue with field rotation because PixInsight said there was -.28 degrees field rotation between each image.

You'd be surprised that all that smudge in the upper left was because I was stacking a image that was smeared most likely by the telescope possibly being nudged. I noticed there was a time difference in the files so that's what made me think the image was bad. After removing the bad image from the stack it came out nicer.

post-27705-0-49901600-1357346728_thumb.j

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