Moon
Himalia
TypeMoon
Mass~4 × 10¹⁸ kg
Diameter140 km
Orbital Radius11.5 million km
Orbital Period250.6 days
Rotation Period7.8 hours
Known Moons0
Surface Gravity~0.01 m/s²
Average Temp-150 °C
AtmosphereNone
Discovered ByCharles Perrine
Discovery Year1904
About Himalia
The largest irregular moon of Jupiter, leader of a group of about 170 members. Likely a captured C-type asteroid fragment. Galileo photographed it from 4.4 million km away in 2000.
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