The twenty-third moon of Uranus in order from the planet. Sycorax was discovered in 1997, together with Caliban, by Brett Gladman, Phil Nicholson, Joseph Burns, and J. J. Kavelaars using the 5-meter Hale Telescope. It is named after Caliban's mother in Shakespeare's play The Tempest and is also known as Uranus XVII. Sycorax is an irregular moon with a highly inclined, retrograde orbit. Like Caliban, it is unusually red in color, suggesting it came originally from the Kuiper Belt.
|discovery||1997, Gladman et al|
|semimajor axis||12,179,000 km (7,569,000 miles)|
|diameter||~150 km (93 miles)|
|orbital period||1,288.2 days|
|visual albedo||0.04 (assumed)|