Thanks for the advice. Much better the result in the stars using MaskedStretch first.Here is the proof, although there is still a color imbalance in the biggest stars, it is not as intense and can be retouched much better.
This is the new version:
h…
Thank you very much for the reply.My telescope is a takahashi FSQ 106, so the optics are excellent and I don't think the problem comes from there.I think it is most likely due to the bad seeing in my area, which makes the profiles of the stars very …