My effort so far with M20 Trifid Nebula image in Ha. Imaged over the last few weeks.
ZWO ASI 174MM Cool @ -15 degrees
Total integration 41 x 5 min subs.
Darks, Flats and Bias applied.
Processed in PixInsight.
Higher Res -
http://astrob.in/245968/0/
Any feedback appreciated.
Thanks for looking!