Thebe

Moon

An irregular inner moon discovered by Voyager 1 whose escaping dust forms one of Jupiter's faint gossamer rings.

Facts

TypeMoon
OrbitsJupiter
Distance from parent body221,900 km
Diameter99 km
Mass4.30 × 10^17 kg
Surface gravity0.0118 m/s²
Temperature-149°C
Orbital period1 days
Apparent magnitude15.7
Redshift0

Thebe in context

At 99 km across, Thebe is 2.8 percent of the diameter of Earth's Moon.

Its mass is less than a thousandth of the mass of Earth.

It orbits Jupiter at 221,900 km, closer in than the Moon orbits Earth.

A single orbit takes 16.2 hours.

An average temperature of 124 K works out at -149 degrees Celsius, colder than the 15 degrees Earth averages.

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