m57

• Astronomy Picture of the Day

  ring nebula m57 deep field astronomy picture [»]

  saved at 06.11.2009, by jen1979, 2 Users, more info

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• APOD: 2009 November 15 - M57: The Ring Nebula

  It looks like a ring on the sky. Hundreds of years ago astronomers noticed a nebula with a most unusual shape. Now known as M57 or NGC 6720, the gas cloud became popularly known as the Ring Nebula...

  ring nebula sky hundreds planetary gas cloud m57 of years ngc november [»]

  saved at 16.11.2009, by G8rrrry, 1 User, more info

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