Moon
The largest of Jupiter's irregular moons, likely a captured asteroid orbiting far beyond the main Galilean moons.
| Type | Moon |
|---|---|
| Orbits | Jupiter |
| Distance from parent body | 11,460,000 km |
| Diameter | 170 km |
| Mass | 2.27 × 10^18 kg |
| Surface gravity | 0.021 m/s² |
| Temperature | -149°C |
| Orbital period | 250 days |
| Rotation period | 7.78 hours |
| Apparent magnitude | 14.6 |
| Redshift | 0 |
| Discovered | 1904 |
At 170 km across, Himalia is 4.9 percent of the diameter of Earth's Moon.
Its mass is less than a thousandth of the mass of Earth.
It orbits Jupiter at 11,460,000 km, further out than the Moon orbits Earth.
A single orbit takes 250.2 days.
An average temperature of 124 K works out at -149 degrees Celsius, colder than the 15 degrees Earth averages.
It has been on record since 1904.
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