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Earth's Shadow

Discussion in 'Tech, Science, and Space' started by Robby, Aug 20, 2008.

  1. Robby

    Robby The Robot

    Jul 28, 2004
    Earth's Shadow


    Earth's Shadow
    Credit & Copyright: Anthony Ayiomamitis (TWAN)

    Explanation: The dark, inner shadow of planet Earth is called the umbra. Shaped like a cone extending into space, the umbra has a circular cross section that can be most easily seen during a lunar eclipse. For example, last Saturday the Full Moon slid across the northern edge of the umbra. Entertaining moon watchers throughout Earth's eastern hemisphere, the lunar passage created a deep but partial lunar eclipse. This composite image uses successive pictures recorded during the eclipse from Athens, Greece to trace out a large part of the umbra's curved edge. The result nicely illustrates the relative size of the umbra's cross section at the distance of the Moon, as well as the Moon's path through the Earth's shadow.

    (Via NASA)
  2. Kevin

    Kevin Code Monkey Staff Abductee

    Mar 20, 2004
    Or the the photographer got his thumb in the shot, either or.
  3. Tom

    Tom An Old Friend

    Dec 6, 2004
    Gulf Coast
    Where did they get all those moons?
  4. GeoffNelder

    GeoffNelder Scout

    Aug 24, 2008
    Chester, UK
    Awe inspiring photo. I wish I was still teaching astronomy - my classes would have loved it.

  5. Webster

    Webster The Red Tarheel

    Dec 7, 2007
    Morganton, NC
    According to the explanation, its' a composite photo made up of successive photos taken around Athens, Greece during a recent lunar eclipse. GeoffNelder's right; though....it is an awe-inspiring photo. :cool:
  6. atailofadog

    atailofadog Scout

    Sep 19, 2008
    My first thought when I read the title of this topic: HOW can Earth have a shadow in the space? Smart.

    Anyway, that photo is really handsome.

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