M20, The Trifid Nebula, in the constellation of Sagittarius, is a remarkable object - large, bright and beautiful. It is a complex of red emission, blue reflection, and dark nebulae about the size of the full moon, intersected by three dark lanes, from which the Trifid gets its name.
Exposure Data * Lens: Astro-Physics 130EDT F/8 triplet apochromatic refractor * F/stop: F/8 * Exposure: 12 x 6 min * Mount: Losmandy GM-100EQ polar-aligned equatorial mount * Camera: Canon EOS 20Da DSLR * Mode: Raw * ISO: 1600 * Filter: No filter * White Balance: Custom * In-Camera Noise Reduction: Off * Temp: 54F * Date: September 2, 2008 * Time: 9:54 p.m. * Location: Cherry Springs, PA * Calibration: Darks, Bias * Processing: Color and contrast enhanced in Photoshop.
