Celestial hemisphere:  Northern  ·  Constellation: Cygnus (Cyg)  ·  Contains:  Crescent Nebula  ·  LBN 193  ·  LBN 203  ·  LBN 206  ·  LBN 208  ·  LBN 215  ·  NGC 6888  ·  Sh2-105
NGC6888(Crescent Nebula), Abhijit Tamuli
Powered byPixInsight

NGC6888(Crescent Nebula)

NGC6888(Crescent Nebula), Abhijit Tamuli
Powered byPixInsight

NGC6888(Crescent Nebula)

Equipment

Loading...

Acquisition details

Loading...

Description

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 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[3] 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

Comments

Sky plot

Sky plot

Histogram

NGC6888(Crescent Nebula), Abhijit Tamuli