I've reprocessed this many times now, to the point where I'm never sure how truly different the results are. The real answer of course is "more data" - especially from my "bright suburban" yard - but by the time clear moonless returns this will not be a viable target. Longer focal length would help also, but when your only tool is a hammer...
120 x 45" + 270 x 60" = 6 hours total; with the gear in my signature
Preprocessed and stacked in Siril. 40 flats, 40 dark-flats, 40 darks for 45", 55 darks for 60", everything at -10C
I had a lot of trouble with the gradient, played around quite a while in the Wipe module before deciding it was as good as I was going to get. Binned to 50% after Wipe. I also messed around with color balance a lot. If anyone plays with the data I'd be really interested to see what you choose.
StarTools.log.txt 6.6KB 8 downloads
Link to unstretched fit on dropbox Hopefully someone will tell me if that does not work