Quote:
Originally Posted by swannies1983
Hadn't really noticed the red halos (still learning the tricks of the trade though). I was referring to some of the brighter stars within the galaxy arms. A method that has worked for me is discussed in The Zone System for Astro Imaging. Basically you use the quick selection tool to select the star (including the halo region) and use curves to increase the brightness of the halo region.
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Thanks for the clarification, Dan. I think these are artifacts from sharpening the galaxy. I've used that method before so will give it a go. I've also noticed that the background is quite visibly noisy in the cropped version so will try to smooth this too. Repro coming up.