PIA08003: Newest Member of Our Solar System (Artist's Concept)

Newest Member of Our Solar System (Artist’s Concept)


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

This artist's concept shows the planet catalogued as 2003 UB313 at the lonely outer fringes of our solar system. Our Sun can be seen in the distance. The new planet, which is yet to be formally named, is at least as big as Pluto and about three times farther away from the Sun than Pluto. It is very cold and dark. The planet was discovered by the Samuel Oschin Telescope at the Palomar Observatory near San Diego, Calif., on Jan. 8, 2005.

Background Info:

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.

Cataloging Keywords:

Name Value Additional Values
Target 136199 Eris Earth, Pluto, Sun
System Kuiper Belt Earth, Pluto
Target Type Dwarf Planet Earth, Sun, TNO
Mission Palomar Observatory
Instrument Host Palomar Observatory
Host Type
Instrument Samuel Oschin Telescope
Extra Keywords Artwork, Atmosphere, Color
Acquisition Date
Release Date 2005-08-03
Date in Caption 2005-01-08
Image Credit NASA/JPL-Caltech
Source photojournal.jpl.nasa.gov/catalog/PIA08003
Identifier PIA08003