Chilldaddy1964
M20 Trifid Nebula and M21 open cluster
The Trifid Nebula is an H II region located 4,100 ly away in Sagittarius. Its name means 'divided into three lobes'. The object is a 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 separately catalogued as Barnard 85).
AT60ED F/3.8 on Evolution Alt/Az mount
ASI385MC one shot color camera
IDAS LPS D1 light pollution filter
40x8s 37m total exposure
Saved as viewed in Sharpcap (no post-processing) and edges cropped
M20 Trifid Nebula and M21 open cluster
The Trifid Nebula is an H II region located 4,100 ly away in Sagittarius. Its name means 'divided into three lobes'. The object is a 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 separately catalogued as Barnard 85).
AT60ED F/3.8 on Evolution Alt/Az mount
ASI385MC one shot color camera
IDAS LPS D1 light pollution filter
40x8s 37m total exposure
Saved as viewed in Sharpcap (no post-processing) and edges cropped