Quote:
Originally Posted by AdamJL
Great start. You hinted at something in your post… the best images of this object require tens or possibly hundreds of hours of total integration time. This is one to build up over multiple seasons I think. You’re there with Ha, now for the others…. OII is quite bright but SII is going to be fun!
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Ta. As far as I have able to determine, there is no significant SII emission from the helix.
Time better spent on RGB, more Ha or OIII.
