Thanks Bob!
DT - Cheers! That is certainly a big improvement with the green cast gone. I think the bright blue that's left in the bottom-right is a bit "off", but I'll leave that for another day. Thanks for reminding me about HLVG.
Side note: shooting at ISO 200 x 12 min was a mistake here, because the non-diffracted stars bloomed and added a lot of red noise. I should have stuck with ISO 1600 x 1.5 mins.
Narayan - Thanks! Yep, it was autoguided with an Orion Mini Guider + QHY5 + PHD.
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