The dwarf planet, formerly known as 2003 UB313 (or Xena), is now called Eris, after the Greek goddess of discord and strife.
Photojournal: PIA03034
Source: NASA/JPL/Caltech
Published: August 3, 2005

The dwarf planet, formerly known as 2003 UB313 (or Xena), is now called Eris, after the Greek goddess of discord and strife.

These time-lapse images of a newfound planet in our solar system, called 2003 UB313, were taken on Oct. 21, 2003, using the Samuel Oschin Telescope at the Palomar Observatory near San Diego, Calif. The planet, circled in white, is seen moving across a field of stars. The three images were taken about 90 minutes apart.

A joint effort between JPL and the California Institute of Technology, the Palomar Observatory near San Diego houses a collection of famous telescopes, including the Hale 200-inch and Samuel Oschin 48-inch telescopes. The Palomar Adaptive Optics System, built by JPL and Caltech, corrects for the atmospheric blur of astronomical targets caused by turbulence in Earth's atmosphere. This system's camera was built by Cornell University, Ithaca, N.Y.

ENLARGE

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