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Hi Greg
Well, its my standard process to "colour select" stars before stretchng, and manually select stars that are within bright neb areas (that gets selected because they exceed the brightness threshold, it can take a while, but worth it) I might not use it later, but doing it at this stage saves a lot of grief later if you need it, just save the selection as "stars" for later loading. You need to do this before streching, or too much neb gets selected. Then min filter just eliminates all but the brightest stars (if you push it), and the rest you "heal" out (usually a dozen or so). You may have noticed my images arnt too deep, curves gets rid of the annoying dim ones left. As Jase points out, "dust and scratches" filter does a similar job, but use carefully, as it can affect the whole image, I dont use it.
It depends on the cam, but I use select>modify expand 6, feather 4 and then later min filter 1 or 2 (for RGB, to get them same size as HA) or 3/4 if you want to eliminate the smaller stars
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