An outer retrograde satellite of Uranus, at a distance of 17 988 000 km; also known as Uranus XIX. It orbits every 2303.1 days at an inclination of 148° to the ecliptic. The orbit is one of the most elliptical of any moon in the Solar System, eccentricity 0.59. Setebos is 48 km in diameter and was discovered in 1999 from ground-based observations.
Subjects: Astronomy and Astrophysics.