Thread: How to stack images of a moving comet using "sum"?
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Old 17-01-2008, 09:19 PM
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Terry B
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Terry B is offline 		 
Join Date: Mar 2006
Location: Armidale
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Iris has a good system and it's free.
See http://www.astrosurf.com/buil/iris/t...2/doc10_us.htm
and http://www.astrosurf.com/buil/iris/t.../doc121_us.htm
You just align on the comet head and add however you want.
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