Oberon, A Moon Of Uranus

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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 by	William Herschel
Date of discovery	1787

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 eccentricity	0.0008
Orbital inclination (degrees)	0.10

Escape velocity (km/sec)	0.729

Visual geometric albedo	0.24
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)

Cylindrical Map of Oberon
This image of Oberon is a cylindrical map with feature names. It was created from images taken by the Voyager 2 spacecraft. (Courtesy A. Tayfun Oner)

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

Uranus Titania