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Exciting image. I have never seen detail like that before in NGC346. I remember we exchanged some PMs a few years back. You mentioned you were going to mount the CDK on the back of a truck. Is that how you ended up mounting it?
Ha in this object would wreck the delicate blues and you have done that aspect nicely. The cost seems to be blue halos around the brighter stars. Perhaps that is coming from the Ha as luminance part of your processing.
I think if you added a star mask at some point in the processing, expanded a couple of pixels and feathered a couple of pixels would protect the stars from the Ha blending. Ideally some luminance would have been better than Ha and use Ha only as a lighten layer colourised as red and gently does it as you have done.
I know some use Ha as luminance and I occassionally add a tiny amount this way to add some more detail but usually its a colour wrecker and throws the colour balance off or weakens them a lot or both.
Greg.
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