Quote:
Originally Posted by Don Hoey
Dave,
I have just put in a stack of first and last images to read the star count. Image 1 of the first stack 530 stars. Image 2 taken from my full frame posting 1815 stars. I put that down to the totally massive stack I did.
Don
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Hi Don
I have used Deep Sky Stacker but gave up on it as with my images I was getting in some cases double stars that were not there. That may well be due to my inexperience using it rather than the program. Some people do use it with success. I am not sure that the number of stars used is any indication of image quality.
I have just done a quick Google search on image stacking and there are many results. Here is a link to just one of them which seems to explain the process clearly and in particular the need for truly random noise for stacking to be effective.
http://www.rocketroberts.com/astro/ccdnoise.htm
I hope that helps.
Dave