Moon U2 Umbriel
Physical characteristics
| Mean diameter | 1169.4 km |
| Mass | 1.17×1021 kg |
| Avg. density | 1.398 g/cm3 |
| Equatorial surface gravity | 0.228 m/s2 |
| 0.023 g | |
| Escape velocity | 0.517 km/s |
| Rotation period (sidereal) | 99.460 hours |
| Albedo | 0.260 |
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.
Downloads
Models
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.
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Umbriel (Voyager)
(JPEG, 1024×512px, 33 KB)
