Hi Andy,
that's a great picture.
I got awful results with only 3 hours of data from a light polluted suburb in Melbourne
but using a CLS-CCD anti-light pollution filter.
https://www.flickr.com/photos/247194...in/photostream
It shows everyone how difficult this target is.
I had to take 15 minute subs & bin 2x2 to see anything on my sub frames.
You have so much beautiful color.
Well done.
cheers
Allan