Thanks a lot guys!
Yes, stars have a bright star-like artifact in them - makes them look squarish. Jase is spot on too - should have gone for longer subs (10mins was never going to be enough at that FL - doh!
). Consequently, noise reduction had to be pretty heavy so that's where I think the star imperfections are coming from - haven't pin pointed the
exact culprit yet though.
Boy, imaging and processing is NOT like riding a bike! If you're away from it too long (and you're not already an expert) you forget stuff!
. Maybe I'm just going senile!
I'll give it another shot and repost. I could just overlay some clean stars but I think I can squeaze even more detail out of the data - wish me luck!
Cheers, Marcus