Asteroid
The largest of the Jupiter trojan asteroids, a reddish two lobed body that also has a small moon.
| Type | Asteroid |
|---|---|
| Distance from the Sun | 5.24 AU |
| Diameter | 225 km |
| Mass | 7.90 × 10^18 kg |
| Temperature | -151°C |
| Orbital period | 4,381 days |
| Apparent magnitude | 14 |
| Redshift | 0 |
| Discovered | 1907 |
At 225 km across, 624 Hektor is 1.8 percent of the diameter of Earth.
Its mass is less than a thousandth of the mass of Earth.
It keeps an average distance of 5.24 AU from the Sun, so sunlight takes 44 minutes to reach it.
A single orbit takes 12 years.
An average temperature of 122 K works out at -151 degrees Celsius, colder than the 15 degrees Earth averages.
It has been on record since 1907.
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