M20 Trifid Nebula, Reflection/Emission Nebula / M20 / NGC6514 / Sh2-30, in Sagittarius (SGR)

Bob Lockwood
Location of photo
Palomar Mountain, CA.
Date/Time of photo
LRGB; 60, 60, 60, 120, All 15min. (bin 1x1) Telescope Engineering Company APO180FL @ f/5.23 using an Astro-Physics TCC160 F/L 941mm. Astro-Physics 1200 GTOCP3 FLI-MLx694 @-20c / CFW2-7 / FLI-Atlas focuser / Guided by SBIG ST-I / w OAG. Arstodon Gen2 LRGB MaxImDL 6.08, Photoshop CS5, CCDStack 2.82, Topaz Labs.
Image Field of view is 36.4 x 45.5 arcmin. The Trifid Nebula M20 and as NGC 6514 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 (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).
Home: http://www.mynightsky.net/ Image link: http://www.mynightsky.net/Nebulae/M20_2015.html
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