I love this galaxy Greg and I can see you have had a good hammer at it, great work
and overall it looks pretty cool, I love the tight details in the inner disc of the galaxy, looks like a distant rotating star city... but.. re the faint halo stuff...my 10hrs of Lum (with essentially the same scope and also a fairly sensitive camera) from Bortle 3.5 skies, can't really confirm much of your outer halo features, even when
heavily stretched?
That big ring below the galaxy on the right, looks to me, like a dust bunny that the flats didn't remove properly
and I can't find any other images that can confirm any of the other fluff in the field either. Not trying to be mean or anything, as there is clearly a bit of work in this, what do you think?..maybe I have it wrong?
Mike