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Mercury not travelling in a straight line?

  1. Nov 2, 2009 #1
    Take a look at this..

    http://sunearth.gsfc.nasa.gov/sunearthday/media_viewer/flash.html [Broken]
    Navigate > Visualizations > Mercury Transit of the Sun

    Why is Mercury travelling up and down vertically?

    I can understand on most given view points it would not be a straight line, but the line of movement in the video is just weird.
    Last edited by a moderator: May 4, 2017
  2. jcsd
  3. Nov 2, 2009 #2


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    Staff: Mentor

    I'm not seeing what you are seeing. I see it being a little jerky due to an inconsistent framerate, plus the "camera" pans right in steps, but I don't see much if any up and down motion.
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