Quote:
Originally Posted by alphajuno
I have an 11" SCT Alt-Az. I try to run about 50 secs for each channel but I noticed that I was having some alignment problems because of that. If I align to the disk, things don't line up. If I align to the features, I get a red and blue edge.
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I'm not talking about the rotation of Jupiter, which is common when you capture for long times at a long focal length. In those cases, you should always align on the features - not the limb. If you get a blue/red limb, so be it. It doesn't detract much from the overall picture if at all. If it really bugs you, produce two versions - one aligned on the limb and one aligned on the features, and use a feathered copy to get the aligned limb, and copy it as a new layer on the feature aligned image.
That's what I did for my version of your image above.
The rotation i'm talking about appears to be related to the alt/az mount - you're getting clockwise rotation of the whole planet itself.
A wedge or an equatorial mount would fix that.
It makes it harder to line up the features unless you rotate each channel by whatever fraction of a degree it needs.
Quote:
Originally Posted by alphajuno
Oh, what Decon ME values did you use? Every time I try it, I get a big glob. Which should be telling me something...
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I used ME 6/1.4