Caliban (moon)

Caliban

Discovery
Discovered by	Brett Gladman
Discovered in	September 6, 1997
Orbital characteristics
Semimajor axis	7.1×106 km
Eccentricity	0.08
Orbital period	578d
Inclination	137.6° (retrograde)
Is a satellite of	Uranus
Physical characteristics
Mean radius	~49 km
Mass	7.3×1017 kg
Mean density	1.5 g/cm3
Surface gravity	0.02 m/s2
Rotation period	unknown
Axial tilt	98.723°
Albedo	0.07
Atmosphere	none

Caliban is a moon of Uranus, named after a character in William Shakespeare's play The Tempest.

Caliban was discovered on September 6 - September 7, 1997 by Brett Gladman, Phil Nicholson[?], Joseph Burns[?], and JJ Kavelaars[?] using the 200-inch Hale telescope[?]; they also discovered the moon Sycorax at the same time.