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NGC6888, Crescent Nebula

AT60, F/6 Evolution mount on wedge

ASI533MC-Pro, -5C

30x_30.0s_900s, G300

Optolong L-eXtreme light pollution filter, Bortle 8

Saved as viewed in Sharpcap

Topaz DeNoise AI (denoise and sharpening)

 

The Crescent Nebula (also known as NGC 6888, Caldwell 27, Sharpless 105) is an emission nebula in the constellation Cygnus, about 5000 light-years away from Earth. It was discovered by William Herschel in 1792. It is formed by the fast stellar wind from the Wolf-Rayet star WR 136 (HD 192163) colliding with and energizing the slower moving wind ejected by the star when it became a red giant around 250,000 to 400,000[citation needed] 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.

-Wikipedia

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Uploaded on July 3, 2022