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clues
John, in my thread "Yet another first effort with helix" I received advice that has worked for me. in particular a post by David offers advice that I think is relevant to your case
With APP my general process is after stacking:
-Crop
-Correct light pollution (also calibrates background at same time)
-Calibrate star colours (try diff options and settle on what looks best)
-star reduction (rarely used)
-saturation/contrast/sharpen in small (emphasis on small) measures
Chris
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