Barnard 39 (B39) is a dark nebula (a cloud of dust and gas that blocks light) located in the constellation Monoceros, near the emission nebula Sh2-273 and the open star cluster NGC 2259, known for its distinctive shape and deep obscuration of background stars, making it a popular target for astrophotography. It's named after astronomer Edward Emerson Barnard, who cataloged many such dark markings in the sky. 65x180sec fits exposures captured across three nights in N.I.N.A 3 and stacked in Siril 1.4. 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 5084 x 3390