PIA03034: Tenth Planet Discovered

Tenth Planet Discovered


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.

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
System Kuiper Belt Earth
Target Type Dwarf Planet Earth, TNO
Mission Palomar Observatory
Instrument Host Palomar Observatory
Host Type
Instrument Samuel Oschin Telescope Palomar Adaptive Optics System
Extra Keywords Atmosphere, Color
Acquisition Date
Release Date 2005-08-03
Date in Caption 2003-10-21
Image Credit NASA/JPL/Caltech
Source photojournal.jpl.nasa.gov/catalog/PIA03034
Identifier PIA03034