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Limber Up, Limbo Down
The Gallery today features two versions of the same limb image. Astronomers use the term "limb" to refer to the edge of a celestial body as viewed in a telescope. On the left is the original image of Mercury as captured by the Wide Angle Camera. On the right is the same image placed in an orthographic map projection. The scene includes the double-ring basin Michelangelo (M) and the large crater Hawthorne (H).
Date acquired: June 06, 2011
Image Credit: NASA/Johns Hopkins University Applied Physics Laboratory/Carnegie Institution of Washington