Planet
An ice giant that rotates almost on its side, likely from a past massive collision.
| Type | Planet |
|---|---|
| Distance from the Sun | 19.22 AU |
| Diameter | 50,724 km |
| Mass | 8.68 × 10²⁵ kg |
| Surface gravity | 8.69 m/s² |
| Temperature | -197°C |
| Moons | 29 |
| Rings | Yes |
| Orbital period | 30,589 days |
| Rotation period | 17.24 hours |
| Apparent magnitude | 5.68 |
| Redshift | 0 |
| Discovered | 1781 |
Planets are massive enough to pull themselves round and to have cleared their orbit of other debris — the second part is the line the solar system's dwarf planets fall short of.
At 50,724 km across, Uranus is 4.0 times the diameter of Earth.
Its mass is 15 times the mass of Earth.
It keeps an average distance of 19.22 AU from the Sun, so sunlight takes 2.7 hours to reach it.
A single orbit takes 84 years.
An average temperature of 76 K works out at -197 degrees Celsius, colder than the 15 degrees Earth averages.
29 moons are known to orbit it.
It has been on record since 1781.
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