MoonMoon of Uranus
Stephano
An irregular moon of Uranus.
32km
Diameter8,004,000km
From Uranus677.4days
Orbital Period1999
DiscoveredAbout
Stephano is an irregular moon of Uranus with a distant, inclined orbit.
Properties
32km
Diameter8,004,000km
Semi-major Axis677.36days
Orbital Period1999
Discovery YearBrett J. Gladman
Discovered ByOther Moons of Uranus
Miranda
The smallest major Uranian moon with an extremely varied and dramatic landscape.
471.6 km
Diameter
1.4 d
Orbit
1948
Discovered
Ariel
The brightest and possibly most geologically active of Uranus's major moons.
1,157.8 km
Diameter
2.5 d
Orbit
1851
Discovered
Umbriel
The darkest of Uranus's major moons with ancient, heavily cratered terrain.
1,169.4 km
Diameter
4.1 d
Orbit
1851
Discovered
Titania
The largest moon of Uranus with evidence of past geological activity.
1,576.8 km
Diameter
8.7 d
Orbit
1787
Discovered