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The Trifid Nebula Photographed by Scott Davis on June 7, 2013 From Courtright Reservoir, CA   Description: The Trifid Nebula, catalogued as Messier 20 and NGC6514, is a rather unique nebula in that is actually has three nebulae in one. It has an ionized hydrogen emission nebula (the red portion), a reflection nebula (the blue portion), and a dark nebula (where opaque dust is actually blocking us from seeing portions of the nebula gas). Also visible in this image is an open cluster (lower left) catalogued as Messier 21 and NGC6531.   Imaging Camera: Canon EOS 60D   Imaging Scope/Lens: Orion Astrograph 8" f/3.9 Newtonian   Mount/Tripod: Celestron CGEM (Hypertuned)   Guide Scope/Camera: Orion Shorttube 80mm w/ Starshoot Autoguider   Exposure Details: Camera settings were ISO 1600 with 3-minute exposures. A total of 25 lights, 10 darks, and 50 each of flats, dark flats, and bias frames were stacked to create this final image. Processed in Photoshop CS6 using Scott Rosen's DSLR LLRGB processing method.

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