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I test of combining Ha from my light polluted home with RGB from a SQM 21 site. Overall the blending wasn't too hard. I think the very cold weather might have started pinching the optics in my SV70T as I saw much more odd artifacts around brighter stars than I normally see. I tried to clean it up some in Photoshop but thought it gives the image some character since that is just one of the things that happens when imaging.

Date: 12/30/2017
Telescope: Stellarvue SV70T
Mount: Astro-Physics Mach1GTO
Camera: ZWO ASI1600MM-Cool
Exposure: Baader B 1.25" CCD Filter: 90x60" (gain: 139.00) -25C bin 1x1, Baader G 1.25" CCD Filter: 90x60" (gain: 139.00) -25C bin 1x1, Astrodon Ha 1.25" 5nm: 58x300" (gain: 200.00) -25C bin 1x1, Baader R 1.25" CCD Filter: 45x60" (gain: 139.00) -25C bin 1x1