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Uranus
Missions to Uranus
Uranus Sign/Name
Uranus Short Facts
Uranus Pictures
Uranus Moons
   -  Cordelia
   -  Ophelia
   -  Bianca
   -  Cressida
   -  Desdemona
   -  Juliet
   -  Portia
   -  Rosalind
   -  Belinda
   -  Puck
   -  Miranda
   -  Ariel
   -  Umbriel
   -  Titania
   -  Oberon
   -  Caliban
Uranus Summary

Uranus

Uranus Moon: Oberon!

This Voyager 2 color composite of the Uranian satellite Oberon in 1986.


Discovered in 1787 by William Herschel, Oberon is a relatively "quiet" moon with little to no internal activity. The moon is old and heavily cratered with dark material of unknown origin at the basin. Other surface features include bright rayed craters and other icy reas of interest. It takes Oberon 13 days and 11 hours to complete an orbit of Uranus.
Voyager 2 image of Oberon taken on Jan. 24, 1986.


This Voyager 2 picture of Oberon is the best the spacecraft acquired of Uranus' outermost moon. The picture was taken shortly after 3:3O a.m. PST on Jan. 24, 1986, from a distance of 660,000 kilometers. The color was reconstructed from images taken through the narrow-angle camera's violet, clear and green filters. The picture shows features as small as 12 km on the moon's surface. Clearly visible are several large impact craters in Oberon's icy surface surrounded by bright rays similar to those seen on Jupiter's moon Callisto. Quite prominent near the center of Oberon's disk is a large crater with a bright central peak and a floor partially covered with very dark material. This may be icy, carbon-rich material erupted onto the crater floor sometime after the crater formed. Another striking topographic feature is a large mountain, about 6 km high, peeking out on the lower left limb.


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