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Forgot to add...To further improve your chrominance data quality, try a "stepped" data acquisition. Shoot red filtered data while the target is relatively low (30 to 50 degrees), then shoot green, followed by blue filtered data as the target crosses the meridian. So your data acquisition imaging plan would look some like RRRGGGBBBBBBGGGRRR. In doing so, you minimise the impact of atmospheric extinction common in blue filtered data. This of course can also be circumvented by increasing colour weights based on target elevation at the time. I'm not always rigid in this method, sometimes I shoot based on moon phases. If the moon is not fully illuminated and low in the sky or has not risen, shoot green and blue filtered data. As it rises, switch to red filtered data has it is not as impacted by the blue reflected light from the moon. Once the moon gets too high or bright, switch to Ha. Manual normalisation will for the most part help in balancing the colours when the moon is about. You may have still need to deal with gradients. Cloudless nights are precious so anything you can do to maximise the output and quality of data obtained, can improve the final result.
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