M20 - Trifid Nebula
 
Date:
 
April 27, 2014
 
Location:
 
Deerlick Astronomy Village
Sharon, Georgia USA
Telescope:
 
Orion ED80 Apo
 
Camera:
 
Canon 450D DSLR
 
Mount:
 
Orion Atlas EQ-G
 
Acquisition:
 
Nebulosity
 
Filters:
 
None
 
Total Integration:
 
40 minutes
Subexposures:
 
7 x 300s @ ISO 1600
 
Calibration:
 
None
 
The Trifid Nebula (also known as M20 and NGC 6514) is approximately 5,000 light years away in the constellation Sagittarius. Its name means 'divided into three lobes'. The object is an unusual combination of an open cluster of stars; an emission nebula (the red portion), a reflection nebula (the blue portion) and a dark nebula (the dark 'gaps').

The Trifid Nebula is a star-forming region in the Scutum spiral arm of the Milky Way. The most massive star that has formed in this region is HD 164492A, an O7.5III star with a mass more than 20 times the mass of the Sun. This star is surrounded by a cluster of approximately 3,100 young stars.