Messier 20, Trifid Nebula

Messier 20 or the Trifid Nebula is an H II region located in Sagittarius. It was discovered by Charles Messier on June 5, 1764.Its name means 'divided into three lobes'. The object is an unusual combination of an open cluster of stars; an emission nebula (red portion), a reflection nebula (blue portion) and a dark nebula.


Image details:
Telescope: TS 90/600 triplet with 2.5" TS flattener
Mount: Skywatcher HEQ5-Synscan
Camera: Canon 60d (modded)
Exposure: 17 * 600sec
Date: July 23, 2014.
Software: PixInsight
Calibrationfiles: Dark:Yes, Bias:Yes, Flat:Yes
Bigger version:

(c) All photos by Ruud de Vries