This is the Trifid Nebula, M20, with the open cluster M21, my first test target from the new Astro-Physics 175 mm f/8 Starfire EDF at the Deep Sky West Observatory. Processing was very straight forward, no tricks necessary. Exposure: LRGB, (22,8,9,10) x 600sec Date: 2017-06-14…2017-06-30 Setup: Astro-Physics 175 Starfire with FLI PL16070 Site: Deep Sky […]