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Grand Spiral Galaxy NGC 1232

Discussion in 'Tech, Science, and Space' started by Robby, Aug 24, 2008.

  1. Robby

    Robby The Robot

    Joined:
    Jul 28, 2004
    Location:
    Terra
    Grand Spiral Galaxy NGC 1232

    [​IMG]


    Grand Spiral Galaxy NGC 1232
    Credit: FORS1, 8.2-meter VLT Antu, ESO

    Explanation: Galaxies are fascinating not only for what is visible, but for what is invisible. Grand spiral galaxy NGC 1232, captured in detail by one of the new Very Large Telescopes, is a good example. The visible is dominated by millions of bright stars and dark dust, caught up in a gravitational swirl of spiral arms rotating about the center. Open clusters containing bright blue stars can be seen sprinkled along these spiral arms, while dark lanes of dense interstellar dust can be seen sprinkled between them. Less visible, but detectable, are billions of dim normal stars and vast tracts of interstellar gas, together wielding such high mass that they dominate the dynamics of the inner galaxy. Invisible are even greater amounts of matter in a form we don't yet know - pervasive dark matter needed to explain the motions of the visible in the outer galaxy. What's out there?


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  2. Tom

    Tom An Old Friend

    Joined:
    Dec 6, 2004
    Location:
    Gulf Coast
    I've been there and you really do need a good dust mask
     
  3. Kevin

    Kevin Code Monkey Staff Abductee

    Joined:
    Mar 20, 2004
    Location:
    Pennsylvania
    Better pack a few spare filters.
     
  4. Webster

    Webster The Red Tarheel

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    Morganton, NC

    :eek: :eek: :eek: :eek: :eek: :eek:
     

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