Oberon at Voyager Closest Approach 11.11
This Voyager 2 picture of Oberon is the best the spacecraft acquired of Uranus' outermost moon. The picture was taken on 24 January 1986, from a distance of 660,000 kilometers.
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Image Credit: JPL, NASA  

The colour 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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