|
SI Units |
Earth Relative |
|
Radius (Equatorial) |
25,550,000 m |
4.007 x Earth |
Mass |
8.681 x 1025 kg |
14.536 x Earth |
Temperature (Surface Mean) |
59 K (-214 °C) |
|
Gravity |
8.69 ms-2 |
0.886 g |
Escape Velocity |
21,300 ms-1 |
|
Axis Tilt |
97.9° |
|
Distance from Sun (Semi-Major) |
2.8709722 x 1012 m |
19.19 AU |
Orbital Period |
84.323 Earth Years |
|
Rotational Period |
0.72 Earth Days (17.9 Hours, retrograde) |
|
Number of Moons |
27: including Puck, Miranda, Ariel, Unbriel, Titania and Oberon |
|
Atmosphere |
83% Hydrogen, 15% Helium |
|
Rings |
Yes, narrow, dark, faint, consist of rock |
|
Missions to Uranus |
Voyager 2 |