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The Bruce Murray Space Image Library

Eris and its newly discovered moon

Filed under pretty pictures, many worlds, Eris, dwarf planets beyond Neptune, optical telescopes

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Eris and its newly discovered moon This is the discovery image of the moon Dysnomia of dwarf planet Eris, as seen on September 10, 2005. The discovery of the moon is important because it will permit scientists to determine the mass of Eris.

W.M. Keck Observatory

Original image data dated on or about September 10, 2005

 

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