Refer attached file(s)
don't show up on any of the flats I used (although the flats used were not taken on the same night) or when the individual frames are stretched
however when applying curves to the rgb stacked frame they do
also when no flats applied same thing appears
the flats were taken two weeks ago and used in my previous image of M46 and this effect doesn't show up in that image
is it the flats or reflection issues or something else