The Night Sky Brain is actually called the Crescent Nebula and is an emission nebula in the constellation Cygnus, and is around 5000 light-years from Earth.
It is formed by the fast stellar wind from a Wolf-Rayet star colliding with and energising the slower moving wind ejected by the star when it became a red giant around 250,000 years ago. The result of the collision is a shell and two shock waves, one moving outward and one moving inward. The inward moving shock wave heats the stellar wind to X-ray-emitting temperatures.
This was my first dataset taken with my mono camera, the mono camera genesis.
Kit
ZWO ASI294MM-Pro bin 1x1 Gain 190 -10C
William Optics RedCat 51 v1.5 f/4.9
DeepSkyDad AF3
Baader 3.5nm Ha, 4nm O3 2”
iOptron CEM25P
Pegasus Pocket Powerbox
ZWO guidescope and ASI120MM-S guide cam
25x180s Ha and 22x180s O3 stacked in APP, processed in PI and PS