Short test run to try a mosaic for the first time, after sessions also attempting the Pelican and North American nebulas which failed (see recent posts for non-mosaic versions). This mosaic worked!
Also tried the AstroPixelProcessor workflow for this one, which as ever, is much easier than the crazy-complicated PixInsight (though preprocessing here was done in the latter).
Limited number of subs as this was just a test run and it was getting late after the main attempt on the Cygnus nebulas. Color did not come out as I wanted or expected at first, but managed to coax it along more to my liking with subsequent tweaking in Lightroom -- my usual workflow, but required more effort this time. Surprised how muted the colors were at first, but probably simply lack of subs. Worth some more integration at some point, though I'm also busy with Mars at present!
My guessed-exposures below, but probably best not to follow this as in no way do I recommend it! Total exposure: 35 mins x2 panel mosaic, left and right. 139 unity gain, 0C.
10x60s L2
10x30s R-G-B
10x60s Ha
Disclosure: since this was just a test run and not a "serious" image (LOL), I did use the notorious Topaz DeNoise AI for a little extra clean-up due to the amount of noise in such a short integration. Powerful tool, but yes, use it carefully and judiciously in astro please!
https://en.wikipedia.org/wiki/Andromeda_Galaxy
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