NGC 6822
Barnard’s Galaxy in Sagittarius
10.1″ f/4.5, Mallincam DS432cTEC with Astronomik UHC filter
Exposure = 13 sec, Live Stacked frames = 60, Gain = 70 of 250
Barnard’s is a dwarf irregular galaxy lying 1.6 million light years away, or two-thirds the distance to the Andromeda Galaxy. It is a member of the Local Group and very similar in size to the Small Magellanic Cloud (7000 light years across), but due to its distance is much smaller and appears very faint in the sky, so faint that I could not immediately see it in the Mallincam. Trusting the location identified in my Nexus DSC, after 15-20 stacks of 13 second exposures it started to appear out of the background sky. Several star-forming regions of ionized hydrogen appear at the top of the image as faint green smudges, including the Bubble Nebula and Ring Nebula very faint at the very top-center right edge of the frame. For comparison see this image from ESO, ALMA.
North at 11 o’clock, East at 8 o’clock