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Craig & John Howman

The Crescent Nebula (NGC6888)

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The Crescent Nebula (NGC6888)
The Crescent Nebula lies around 5000 light years away in the constellation Cygnus and is an emission nebula. The nebula is caused by a Wolf Rayet star (WR 136), it is caused by fast stellar wind created by the star colliding with slower moving wind emitted by the star as it became a red-giant 250,00 - 400,000 years ago.
Posted by craiggg11 on February 1, 2015 Slideshow

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