Quote:
Originally Posted by jase
Rick, could you not just use the stars from the Ha filtered subs alone. I would imagine they present a small stellar profile given the narrow bandpass of the filter. Would be easier, yes?
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Jase,
The Ha definitely had tighter stars but I couldn't use the Ha as Luminance by itself because there were significant features that were only visible in the Oiii (the blue shell around NGC6888 and the whole Soap Bubble.) So, I built the Luminance with PixelMath from the original Ha and Oiii. I suppose I could have used the starless Oiii in this process and I would have ended up with just the Ha stars but I would have needed to clean up some of the artefacts in the starless Oiii.
Ideally, I would have some RGB stars to plug in to the image but alas I don't...
Did that answer your question or did I misunderstand you?
Cheers,
Rick.