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Originally Posted by iceman
Wow, stunning!
What software do you use to combine them?
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AsStroart3 and Photoshop - nothing unusual.
The main problem was that in the LRGB combine the L (or in this case Ha) is the dominant channel so star size matching is difficult as is controlling the matching of the faint stuff. The star sizes in Jons image were huge when coregistered in AA3 to match mine so I had to reduce them and remove major blue halos inherent in the STL11000 that Jon uses. Given Jons images was deeper than mine and used clear Lum not Ha, slight colouration accurs in areas of my image where there wasn't any Lum to match Jons buuuut overall I think the outcome is still quite pleasing? Getting star colour was tricky too and the final composite is lacking in this department.
Mike