This is a 2 X 2 mosaic captured over four night with SGP. Each panel is 19 X 600 sec. H-Alpha filter.
3 Likes
Nice job of assembling the mosaic.
Another hundred hours of subs and you’ll be done 
I considered a similar four panel, NB mosaic earlier this year but shooting 288, fifteen minute subs was more pain than I could endure.
Charlie