These time-lapse images of a newfound dwarf planet in our solar system, formerly known as 2003 UB313 (or Xena), and now called Eris, were taken using the Samuel Oschin Telescope at the Palomar Observatory.
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Tenth Planet Discovered

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Related Images

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    This orthographic projection shows dwarf planet Ceres as seen by NASA's Dawn spacecraft. The projection is centered on Occator Crater, home to the brightest area on Ceres.

    High Resolution Ceres View

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    This image from NASA's New Horizons highlights the contrasting appearance of the two worlds: Charon is mostly gray, with a dark reddish polar cap, while Pluto shows a wide variety of subtle color variations.
    This image from NASA's New Horizons highlights the contrasting appearance of the two worlds: Charon is mostly gray, with a dark reddish polar cap, while Pluto shows a wide variety of subtle color variations.

    A Binary Planet in Color

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    Pluto shows two remarkably different sides in these color images of the planet and its largest moon, Charon, taken by NASA's New Horizons on June 25 and June 27, 2015.
    Pluto shows two remarkably different sides in these color images of the planet and its largest moon, Charon, taken by NASA's New Horizons on June 25 and June 27, 2015.

    Two Faces of Pluto July 1

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    NASA's Dawn spacecraft took these images of dwarf planet Ceres. The map overlaid on the right gives scientists hints about Ceres' internal structure.
    NASA's Dawn spacecraft took these images of dwarf planet Ceres. The map overlaid on the right gives scientists hints about Ceres' internal structure.

    Clues to Ceres' Internal Structure

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    This image from NASA's New Horizons spacecraft shows an overlay of the first official Pluto feature names.
    This image from NASA's New Horizons spacecraft shows an overlay of the first official Pluto feature names.

    First Official Pluto Feature Names

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  • Haulani Crater is one of the youngest craters on Ceres, as evidenced by its sharp rims and bright, bluish material in this enhanced color composite topographic map from NASA's Dawn spacecraft.
    Haulani Crater is one of the youngest craters on Ceres, as evidenced by its sharp rims and bright, bluish material in this enhanced color composite topographic map from NASA's Dawn spacecraft.

    Haulani Crater Topographic Map

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    This enhanced color view from NASA's New Horizons is of Pluto's surface diversity At lower right, ancient, heavily cratered terrain is coated with dark, reddish tholins. At upper right, volatile ices fill the informally named Sputnik Planum.
    This enhanced color view from NASA's New Horizons is of Pluto's surface diversity At lower right, ancient, heavily cratered terrain is coated with dark, reddish tholins. At upper right, volatile ices fill the informally named Sputnik Planum.

    Surface Diversity

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    Images downloaded from NASA's New Horizons spacecraft (through Sept. 11, 2015) were stitched together and rendered on a sphere to make this flyover 'movie.' This is a frame from the animation.
    Images downloaded from NASA's New Horizons spacecraft (through Sept. 11, 2015) were stitched together and rendered on a sphere to make this flyover 'movie.' This is a frame from the animation.

    Flyover Sputnik Planum

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    This image contains the initial, informal names being used by NASA's New Horizons team for the features and regions on the surface of Pluto. These names have not yet been approved by the International Astronomical Union (IAU).
    This image contains the initial, informal names being used by NASA's New Horizons team for the features and regions on the surface of Pluto. These names have not yet been approved by the International Astronomical Union (IAU).

    Informal Names for Features on Pluto

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    An artist's concept of the dwarf planet Eris and its moon Dysnomia. The sun is the small star in the distance.
    An artist's concept of the dwarf planet Eris and its moon Dysnomia. The sun is the small star in the distance.

    Eris and Dysnomia (Artist's Concept)

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  • This image contains the initial, informal names being used by NASA's New Horizons team for the features and regions on the surface of Pluto's largest moon, Charon. These names have not yet been approved by the International Astronomical Union (IAU).
    This image contains the initial, informal names being used by NASA's New Horizons team for the features and regions on the surface of Pluto's largest moon, Charon. These names have not yet been approved by the International Astronomical Union (IAU).

    Informal Names for Features on Pluto's Moon Charon

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    Pluto and Charon, the largest of Pluto's five known moons, seen Jan. 25 and 27, 2015, through the telescopic Long-Range Reconnaissance Imager (LORRI) on NASA's New Horizons spacecraft.
    Pluto and Charon, the largest of Pluto's five known moons, seen Jan. 25 and 27, 2015, through the telescopic Long-Range Reconnaissance Imager (LORRI) on NASA's New Horizons spacecraft.

    A Long-Distance Look from LORRI

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    This image contains the initial, informal names being used by the New Horizons team for the features on Pluto's Sputnik Planum (plain). These names have not yet been approved by the International Astronomical Union (IAU).
    This image contains the initial, informal names being used by the New Horizons team for the features on Pluto's Sputnik Planum (plain). These names have not yet been approved by the International Astronomical Union (IAU).

    Informal Names for Features on Pluto's Sputnik Planum

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    These maps are from NASA's New Horizons' data on the topography (top) and composition (bottom) of Pluto's surface. In the high-resolution topographical map, the highlighted red region is high in elevation.
    These maps are from NASA's New Horizons' data on the topography (top) and composition (bottom) of Pluto's surface. In the high-resolution topographical map, the highlighted red region is high in elevation.

    Pluto Topography and Composition Map

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    The Long Range Reconnaissance Imager on NASA New Horizons acquired images of the Pluto field three days apart in late September 2006, in order to see Pluto's motion against a dense background of stars.
    The Long Range Reconnaissance Imager on NASA New Horizons acquired images of the Pluto field three days apart in late September 2006, in order to see Pluto's motion against a dense background of stars.

    New Horizons Sees Pluto

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  • A white arrow marks Pluto in this NASA New Horizons Long Range Reconnaissance Imager picture taken Sept. 24, 2006. Pluto is little more than a faint point of light among a dense field of stars.
    A white arrow marks Pluto in this NASA New Horizons Long Range Reconnaissance Imager picture taken Sept. 24, 2006. Pluto is little more than a faint point of light among a dense field of stars.

    New Horizons Sees Pluto (Sept. 24)

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    A white arrow marks Pluto in this NASA New Horizons Long Range Reconnaissance Imager picture taken Sept. 21, 2006. Pluto is little more than a faint point of light among a dense field of stars.
    A white arrow marks Pluto in this NASA New Horizons Long Range Reconnaissance Imager picture taken Sept. 21, 2006. Pluto is little more than a faint point of light among a dense field of stars.

    New Horizons Sees Pluto (Sept. 21)

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    The brightest spots on dwarf planet Ceres are seen in this image taken by NASA's Dawn spacecraft on June 6, 2015.
    The brightest spots on dwarf planet Ceres are seen in this image taken by NASA's Dawn spacecraft on June 6, 2015.

    Bright Spots in Ceres' Second Mapping Orbit

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    In this highest-resolution image from NASA's New Horizons spacecraft, great blocks of Pluto's water-ice crust appear jammed together in the informally named al-Idrisi mountains.
    In this highest-resolution image from NASA's New Horizons spacecraft, great blocks of Pluto's water-ice crust appear jammed together in the informally named al-Idrisi mountains.

    The Mountainous Shoreline of Sputnik Planum

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    This view taken by NASA's Dawn spacecraft on June 17, 2016, features Liber Crater in Ceres' northern hemisphere, at right.
    This view taken by NASA's Dawn spacecraft on June 17, 2016, features Liber Crater in Ceres' northern hemisphere, at right.

    Dawn LAMO Image 143

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