M20 Trifid Nebula

H II region (star forming emission nebula) in Sagittarius

Distance 4,200 ly

 

The object is an unusual combination of an open cluster of stars; an emission nebula (the lower, red portion), a reflection nebula (the upper, blue portion) and a dark nebula (the apparent 'gaps' within the emission nebula that cause the trifurcated appearance; these are also designated Barnard 85)

 

AT60ED F/6 on Evolution Alt/Az mount

ASI385MC one shot color camera

IDAS LPS D1 light pollution filter

154x8s 20.5m total

Saved as displayed in Sharpcap (no post-processing)

Done