| Albedo
|
0.19 +
|
| Apoapsis
|
267,362 km (0.00179 AU, 166,131.045 mi) +
|
| Axial tilt
|
0 rad (0 °, 0 grad) +
|
| Color
|
#666666 +
|
| Composition
|
Water ice and rock +
|
| Date of discovery
|
24 October 1851 +
|
| Discoverer
|
William Lassell +
|
| Escape speed
|
0.517 km/s (1,861.2 km/h, 0.321 mi/s, 1,156.496 mph) +
|
| Inclination
|
0.00628 rad (0.36 °, 0.4 grad) +
|
| Lunar mass
|
1.17e+21 kg (0.0159 M☾, 1.95783e-4 M⊕) +
|
| Lunar surface area
|
4,296,117 km² (1,658,740.047 mi², 0.113 A☾, 0.00842 A⊕) +
|
| Mean radius
|
584.7 km (363.316 mi) +
|
| Mean temperature
|
61 K (-212.15 °C, -349.87 °F, 109.8 °R) +
|
| Member of
|
Moon +,
Solar system +,
Major Moons of Uranus +
|
| Orbital eccentricity
|
0.005 +
|
| Orbital speed
|
4.67 km/s (16,812 km/h, 2.902 mi/s, 10,446.492 mph) +
|
| Order
|
16 +
|
| Periapsis
|
264,968 km (0.00177 AU, 164,643.482 mi) +
|
| Planet density
|
1,400 kg/m³ (1.4 g/ml, 87.399 lb/ft³) +
|
| Primary
|
Uranus +
|
| Rotation speed
|
0.0886 km/s (318.888 km/h, 0.055 mi/s, 198.148 mph) +
|
| Semi-major axis
|
266,300 km (0.00178 AU, 165,471.148 mi) +
|
| Sidereal day
|
99.46 h (4.144 da) +
|
| Sidereal period
|
4.144 da (0.0113 a) +
|
| Surface gravity
|
0.229 m/s² (0.75 ft/s², 0.0233 g) +
|
| Visiting mission
|
Voyager 2 +
|
| Categories |
Astronomy +,
Solar system +,
Moon +,
Uranus +
|
