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Space Ultraviolet Andromeda

Discussion in 'Tech, Science, and Space' started by Robby, Sep 17, 2009.

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  1. Robby

    Robby The Robot

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    NASA Astronomy Picture Of The Day
    Ultraviolet Andromeda


    [​IMG]


    Ultraviolet Andromeda
    Credit: UV - NASA/Swift/Stefan Immler (GSFC) and Erin Grand (UMCP)
    Optical - Bill Schoening, Vanessa Harvey/REU program/NOAO/AURA/NSF

    Explanation: Taken by a telescope onboard NASA's Swift satellite, this stunning vista represents the highest resolution image ever made of the Andromeda Galaxy (aka M31) - at ultraviolet wavelengths. The mosaic is composed of 330 individual images covering a region 200,000 light-years wide. It shows about 20,000 sources, dominated by hot, young stars and dense star clusters that radiate strongly in energetic ultraviolet light. Of course, the Andromeda Galaxy is the closest large spiral galaxy to our own Milky Way, at a distance of some 2.5 million light-years. To compare this gorgeous island universe's appearance in optical light with its ultraviolet portrait, just slide your cursor over the image.



    (Via NASA)
     

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