(RCC) NGC 7380 and Pixinsight processing (First Light)

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Bryan avatar
NGC7380 v2 processing wPS.jpg

Hello,

New to the hobby of Astrophotography and longtime photography but really enjoying the challenge and community.  I choose NGC 7380 Wizard as my first light and decided to try to process 5 hours of data from an boral scale 6~7 area.  I know I need more data to improve the quality of this but was wondering what the artifacts of blue and red that vignette my data?  Could it be just city lights or moon spillage, the Optolog filter,  other HA, or calibration data?  Any information for CC is greatly appreciated.  

Clear Skys,
Bryan

GearImaging telescopes or lenses: RedCat 51 William opticsImaging cameras: ZWO 183mc ProMounts: ioptron cem 26 ioptronFilters: L-extreme 2" OptolongDates:Sept. 24, 2021Frames: 100x180" (5h)Integration: 5hAvg. Moon age: 18.06 daysAvg. Moon phase: 88.21%
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Steve Solon avatar
Hello Bryan, and welcome to the world of 'gradients'. These are variations in brightness that can certainly be caused by local lighting or light pollution in the case of a high-number Bortle sky. There are fixes for this problem in just about every image-processing program: PixInsight, Nebulosity, etc. There is a small learning curve in these programs, more than can really be explained here, but nothing too steep. Once you get the hang of it, removing them is fairly simple, and, hopefully, preventing them in the first place will be just as simple. Good first image - keep it up!
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