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Saturn's Infrared Glow

Discussion in 'Tech, Science, and Space' started by Robby, Dec 29, 2007.

  1. Robby

    Robby The Robot

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    Saturn's Infrared Glow
    Credit: VIMS Team, U. Arizona, ESA, NASA

    Explanation: (xxxedit and linkxxx) Known for its bright ring system and many moons, gas giant Saturn looks strange and unfamiliar in this false-color view from the Cassini spacecraft. In fact, in this Visual and Infrared Mapping Spectrometer (VIMS) mosaic the famous rings are almost invisible, seen edge-on cutting across picture center. The most striking contrast in the image is along the terminator or boundary between night and day. To the right (day side) blue-green hues are visible sunlight reflected from Saturn's cloud tops. But on the left (night side) in the absence of sunlight, the lantern-like glow of infrared radiation from the planet's warm interior silhouettes features at Saturn's deeper cloud levels.

    APOD presents: Astronomy Pictures of the Year for 2007


    (Via NASA)
     

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