Image No. 24
NGC6888 The Crescent Nebula
The Crescent Nebula (NGC 6888 or Caldwell 27) is an emission nebula in the Cygnus constellation, about 5000 light years away. It is formed by the fast stellar wind from the Wolf-Rayet star WR 136 colliding with and energizing the slower moving wind ejected by the star when it became a red giant around 400,000 years ago.
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Content and Photographs Copyright 2009 Peter Shah