Moon U2 Umbriel

Physical characteristics

Mean diameter1169.4 km
Mass1.17×1021 kg
Avg. density1.398 g/cm3
Equatorial surface gravity0.228 m/s2
0.023 g
Escape velocity0.517 km/s
Rotation period (sidereal)99.460 hours
Textures: Voyager

The only close-up images of Umbriel were obtained by the Voyager 2 probe in 1986 and only 20% of surface were photographed with enough quality during fly-by. Unfortunately no other spacecraft has visited Uranus system and there are no new missions planned.



This object does not have a shape model yet and is being displayed as a textured tri-axial ellipsoid.

Surface Textures

Textures are simple cylindrical projections with prime meridian at the middle, provided at the highest resolution available.

Last Modified: 03 Jul 2021