624 Hektor

Asteroid

The largest of the Jupiter trojan asteroids, a reddish two lobed body that also has a small moon.

Facts

TypeAsteroid
Distance from the Sun5.24 AU
Diameter225 km
Mass7.90 × 10^18 kg
Temperature-151°C
Orbital period4,381 days
Apparent magnitude14
Redshift0
Discovered1907

624 Hektor in context

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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