Sycorax

Also known as Uranus XVII, S/1997 U 2

moon of Uranus

Key facts

Discovered by: Philip D. Nicholson Brett J. Gladman Joseph A. Burns John J. Kavelaars
Discovery site: Hale Telescope at Palomar Obs.
Discovery date: 6 September 1997
Designation: Uranus XVII
Pronunciation: / ˈ s ɪ k ɒ r æ k s /
Named after: Sycorax
Alternative names: S/1997 U 2
Adjectives: Sycoraxian / s ɪ k ɒ ˈ r æ k s i ə n /
Observation arc: 32.37 yr (11,815 d )
Earliest precovery date: 2 June 1984
Semi major axis: 12,193,230 km (0.0815067 AU)
Orbital period sidereal: 3.52 yr (1,286.28 d)
Mean anomaly: 160.58731 °
Mean motion: 0° 16 47.56 / day
Inclination: 153.22796° (to the ecliptic ) , 159.403° (to local Laplace plane )
Longitude of ascending node: 258.56478°
Argument of perihelion: 16.29680°
Satellite of: Uranus

via Wikipedia infobox

Wikidata facts

Diameter: 165
Mass: 2.7
Orbital period: 1286.28
Image: Sycorax motion.gif

Show 14 more facts

time of discovery or invention: 1997-09-06
provisional designation: S/1997 U 2
apparent magnitude: 20.8
longitude of ascending node: 258.56478
argument of periapsis: 16.29680
mean anomaly: 160.58731
name: Uranus XVII
Commons category: Sycorax (moon)
orbital eccentricity: 0.5224
semi-major axis of an orbit: 12179000
orbital inclination: 153.22796
albedo: 0.065
periapsis: 5823000
apoapsis: 18535000

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Article

Sycorax /ˈsɪkɒræks/ is the largest irregular satellite of Uranus, with a diameter of approximately 157 km. It was discovered on 6 September 1997 on the Hale Telescope in California. Sycorax's orbit is retrograde, irregular, and much more distant than that of Oberon, the furthest of Uranus's regular moons. It has been hypothesized that Sycorax is a captured object, as opposed to one that formed with Uranus.

Discovery and Naming