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NGC 6888: The Crescent Nebula

Discussion in 'Tech, Science, and Space' started by Robby, Aug 13, 2008.

  1. Robby

    Robby The Robot

    Joined:
    Jul 28, 2004
    Location:
    Terra
    NGC 6888: The Crescent Nebula

    [​IMG]


    NGC 6888: The Crescent Nebula
    Credit & Copyright: Tony Hallas

    Explanation: NGC 6888, also known as the Crescent Nebula, is a cosmic bubble about 25 light-years across, blown by winds from its central, bright, massive star. This beautiful telescopic view combines a composite color image with narrow band data that isolates light from hydrogen and oxygen atoms in the wind-blown nebula. The oxygen atoms produce the blue-green hue that seems to enshroud the detailed folds and filaments. NGC 6888's central star is classified as a Wolf-Rayet star (WR 136). The star is shedding its outer envelope in a strong stellar wind, ejecting the equivalent of the Sun's mass every 10,000 years. The nebula's complex structures are likely the result of this strong wind interacting with material ejected in an earlier phase. Burning fuel at a prodigious rate and near the end of its stellar life this star should ultimately go out with a bang in a spectacular supernova explosion. Found in the nebula rich constellation Cygnus, NGC 6888 is about 5,000 light-years away.



    (Via NASA)
     
  2. Webster

    Webster The Red Tarheel

    Joined:
    Dec 7, 2007
    Location:
    Morganton, NC
    .........and now we know what The Blob's big brother looks like......... :eek: :eek: :eek: :eek: :eek: :eek: :eek: :eek: :eek:
     

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