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There definitely were some gradients. My home observatory is reasonably dark but not as dark as at Bigga.
Perhaps the larger aperture also picks up the light pollution more as well? Or it probably was there anyway for the APOs
but it takes longer to get the signal? Not sure.
I'll be adding more to this one as its in a good position early in the evening whilst waiting for other targets to rise.
As you say the correction seems perfect which is always a worry with a large chipped camera.
The tidal stream I think may be there (as you say it may not be due to some light pollution) is the bottom right down to the yellowish galaxy.
The tidal stream to the left was enhanced a bit but not by lasso.
Greg.
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