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Uranus Moons
   -  Cordelia
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   -  Caliban
Uranus Summary


Uranus Moon: Caliban!

The discovery image of Caliban taken in 1997.
The image above is the discovery image of S/1997 U 1 (Caliban).

Caliban was discovered by Brett Gladman, Phil Nicholson, Joseph Burns, and JJ Kavelaars using the 200 inch Hale telescope; the first images were taken 1997 Sept 6 and 7. Caliban (S/1997 U 1) orbits about 7.2 million km from Uranus and is about 80 km in diameter. The size estimates are based on the apparent brightness and an assumed albedo of about 7%. Caliban's orbit is retrograde and highly inclined.

Caliban is a character from Shakespeare's play The Tempest; a savage and deformed slave of the magician Prospero, and is the son of the witch Sycorax who imprisoned the fairy Ariel for disobedience. In The Tempest, Prospero frees Ariel from Sycorax's spell and enslaves Caliban.

The composition of both Caliban and Sycorax, according Nicholson, "is probably a plum-pudding mixture of rocks and ice." Both moons are unusually red in color which may suggest a historical link with the Kuiper Belt.

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