This has always been a fascinating object. Delicate flower like structure and shockwaves from the powerful O type star that irradiates it that is 40 times more massive than our Sun.
Taken with 3 telescopes and 3 cameras, 3 mounts.
Ha O111 LRGB 11hours and 10 minutes total.
http://www.pbase.com/image/163540094/large
http://www.pbase.com/image/163540094/original
Greg.