M20, the Trifid Nebula in the constellation Sagittarius. 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 (the apparent 'gaps' within the emission nebula that cause the trifid appearance. This nebula is 7600ly from Earth. 45x120sec fits exposures captured in N.I.N.A 3.1 and stacked and stars removed in Siril 1.4.0. Telescope: Orion 8" 1000mm f4.9 Newtonian reflector. Mount: Orion Atlas EQ-G Guide Scope: Meade 800mm f10 reduced to f5 with Atik x.5 focal length reducer (ADM rings). Imaging Camera: Canon T3i with full spectrum modification. Guide Camera: Meade DSI Pro monochrome 16bit camera. Imaging camera in prime focus. Filtration used: · · Resolution 5132 x 3395

Created on

Thursday, June 19, 2025

Posted on

Friday, June 20, 2025

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