Celestial hemisphere:  Northern  ·  Constellation: Cygnus (Cyg)  ·  Contains:  Crescent Nebula  ·  LBN 203  ·  NGC 6888  ·  Sh2-105
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NGC 6888 (2023), Richard
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NGC 6888 (2023)

Getting plate-solving status, please wait...
NGC 6888 (2023), Richard
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NGC 6888 (2023)

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Description

The Crescent Nebula (also known as NGC 6888Caldwell 27Sharpless 105) is an emission nebula in the constellation Cygnus, about 5000 light-years away from Earth. It was discovered by William Herschel in 1792.=10.5px  It is formed by the fast stellar wind from the Wolf-Rayet starWR 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 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. - Source: Wikipedia

Presented in SHO format using a balanced channel distribution

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  • NGC 6888 (2023), Richard
    Original
  • NGC 6888 (2023), Richard
    B
  • Final
    NGC 6888 (2023), Richard
    C

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NGC 6888 (2023), Richard