Above you can view 2 pictures of the same deep sky object one taken in a light polluted backyard and one taken in a rural backyard. Both images were taken with the same equipment and processed in the same way, the only difference is the location, date and time.
ISO 3200
f/5.6
41 lights @ 30 sec each
28 dark frames
18 flat frames
25 biases frames
iexos-100 mount
D5100 Stock
135mm Nikor Lens
Stacking, Postprocessing done is Siril
Denoise in Topaz Photo A
You can read more about light pollution at darksky.org