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Pale blue dot: what causes the bands?

  1. Oct 15, 2009 #1
    In the famous photo "Pale Blue Dot" of the Earth from outside the solar system, one can see "bands" of colour around the Earth. What causes these bands? Is that an optical illusion? Does the band in which Earth is found describe the Earth's orbit? What are the other coloured bands? What gives them their colour? Here is the photo for reference:

    Thanks in advance.
  2. jcsd
  3. Oct 15, 2009 #2


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    From http://visibleearth.nasa.gov/view_rec.php?id=599 [Broken]: (found in Wikipedia references)
    Last edited by a moderator: May 4, 2017
  4. Oct 16, 2009 #3
    Thanks, Hurkyl! So the band is an artefact of the photograph and would not be seen by an observer at Voyager's location?
  5. Nov 13, 2009 #4
  6. Nov 14, 2009 #5
    Thanks, Davidfix. That Messenger site is great!
  7. Nov 14, 2009 #6
    No problem. :) Yeah, that site has some cool stuff... Gives you a good idea of the relative size of the planets, for sure. :)

    Damn, the sun is BIG! :D
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