Asteroid
One of the largest main-belt asteroids, irregularly shaped and dark in color.
| Type | Asteroid |
|---|---|
| Distance from the Sun | 3.16 AU |
| Diameter | 289 km |
| Mass | 2.98 × 10¹⁹ kg |
| Temperature | -109°C |
| Orbital period | 2,052 days |
| Rotation period | 5.13 hours |
| Apparent magnitude | 10.7 |
| Redshift | 0 |
| Discovered | 1903 |
Asteroids are rocky leftovers from the solar system's formation, most of them confined to the belt between Mars and Jupiter where Jupiter's gravity kept them from ever assembling into a planet.
At 289 km across, 511 Davida is 2.3 percent of the diameter of Earth.
Its mass is less than a thousandth of the mass of Earth.
It keeps an average distance of 3.16 AU from the Sun, so sunlight takes 26 minutes to reach it.
A single orbit takes 5.6 years.
An average temperature of 164 K works out at -109 degrees Celsius, colder than the 15 degrees Earth averages.
It has been on record since 1903.
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