Thanks for the supportive comments, all. I have been imaging with my DSLR for nearly a year now, and it certainly helps to have things like guiding down pat (this used 10m subs for luminance binned 1x1; 5 min for RGB binned 2x2). But I'm finding aligning and processing LRGB a bit of a dark art ... Seems to have worked here OK, although I've noticed some rings around the foreground stars in the galaxy itself: a devonvolution artefact. Have to learn how to do a star mask ...
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