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ORBONIX · URANUS MOONS

OBERON

The outermost major moon of Uranus, covered by ancient craters and enormous bright deposits on its surface.
Oberon
1,523 km
DIAMETER
13.46 DAYS
ORBITAL PERIOD
583,500 km
FROM URANUS
1787
DISCOVERED
13.46 DAYS
ROTATION PERIOD
#2
LARGEST URANUS MOON
THE OUTER MOON
Oberon is the second-largest moon of Uranus and the outermost of the planet's five major moons. It was discovered in 1787 by William Herschel, on the same night that he discovered Titania. Voyager 2 photographed Oberon during its 1986 encounter with Uranus. The images revealed a very old and heavily cratered surface. Several enormous impact craters can be seen across Oberon's icy terrain. Oberon is composed primarily of water ice mixed with rocky material.
OBERON FEATURES
HAMLET CRATER
Hamlet is one of Oberon's largest impact craters, measuring about 206 kilometres across.
BRIGHT DEPOSITS
Some crater floors contain unusually bright material that contrasts with the dark surface.
ANCIENT SURFACE
Oberon's heavily cratered terrain preserves evidence of impacts from the distant past.
DID YOU KNOW?
Oberon is the outermost of Uranus' five major moons and was photographed in detail by Voyager 2 in 1986.
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IMAGE: NASA / JPL / VOYAGER 2
IMAGE SOURCE: WIKIMEDIA COMMONS