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.