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Oberon
Uranus IV


 

Oberon [O-buh-ron] is a moon of Uranus that is characterized by an old, heavily cratered, and icy surface. The surface shows little evidence of internal activity other than some unknown dark material that apparently covers the floors of many craters. The above image shows several large impact craters towards the center of the image. On the limb, a high mountain rises 6 kilometers (4 miles) above its surroundings. There are bright rays similar to those seen on Jupiter's moon Callisto.

Oberon Statistics
 Discovered byWilliam Herschel 
 Date of discovery1787 
 Mass (kg)3.03e+21 
 Mass (Earth = 1)5.0703e-04 
 Equatorial radius (km)761.4 
 Equatorial radius (Earth = 1)1.1938e-01 
 Mean density (gm/cm^3)1.64 
 Mean distance from Uranus (km)582,600 
 Rotational period (days)13.46324 
 Orbital period (days)13.46324 
 Mean orbital velocity (km/sec)3.15 
 Orbital eccentricity0.0008 
 Orbital inclination (degrees)0.10 
 Escape velocity (km/sec)0.729 
 Visual geometric albedo0.24 
 Magnitude (Vo)13.94 

Views of Oberon

Oberon
This image of Oberon shows several large impact craters towards the center of the picture. Many of the crater floors are covered by an unknown dark material. On the bottom-left limb, a high mountain rises 6 kilometers (4 miles) above its surroundings. Bright rays similar to those seen on Jupiter's moon Callisto, can be found on Oberon's surface. (Credit Calvin J. Hamilton)

Polar Stereographic Map of Oberon
This image is a polar stereographic Map of Oberon. The 0° longitude is at the top in the map. (Courtesy A.Tayfun Oner)

Color Image of Oberon
This image is a reprojected view of Oberon using the above map. (Courtesy A.Tayfun Oner)

 

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Copyright © 1997 by Calvin J. Hamilton. All rights reserved.