|
SI Units |
Earth Relative |
|
Radius (Equatorial) |
1,151,000 m |
0.18 x Earth |
Mass |
1.29 x 1022 kg |
0.0021 x Earth |
Temperature (Surface Mean) |
37 K (-236°C) |
|
Gravity |
0 .81 ms-2 |
0.059 g |
Escape Velocity |
1,100 ms-1 |
|
Axis Tilt |
122.5° |
|
Distance from Sun (Semi-Major) |
5.9063762 x 1012 m |
39.48 AU |
Orbital Period |
247.92 Earth Years |
|
Rotational Period |
6.39 Earth Days (retrograde) |
|
Number of Moons |
3: Charon (large), Nix and Hydra |
|
Atmosphere |
Perhaps Methane and Nitrogen |
|
Rings |
- |
|
Missions to Pluto |
New Horizons |