Himalia
Moon· orbits Jupiter
Himalia — moon of Jupiter.
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Key facts
Mass (est.)
2.27 × 10¹⁸ kg
0.0000309 Moon masses
Radius
85 km
5% of our Moon's radius
Surface gravity
0.021 m/s²
0% of Earth's gravity
Orbit around Jupiter
252 Earth days
Science
Physical
- Mass (estimated)
- 2.27 × 10¹⁸ kg · 0.0000309 Moon masses
- Estimated: the implied density (~0.9 g/cm3) is a standard assumed value, so the mass is effectively size-and-density based, not weighed. Source: JPL SSD Planetary Satellite Physical Parameters (GM JUP344).
- Radius
- 85 km · 5% of our Moon's radius
- JPL SSD Planetary Satellite Physical Parameters (mean radius)
- Surface gravity
- 0.021 m/s² · 0% of Earth's gravity
- Estimated from the estimated mass and radius
- Escape velocity
- 59.7 m/s · 1% of Earth's escape velocity
- Estimated from the estimated mass and radius
Orbit around Jupiter
- Distance from Jupiter
- 11,492,428 km
- From JPL orbital elements
- Orbital period
- 251.7 days
- From JPL orbital elements
- Eccentricity
- 0.1545
- From JPL orbital elements
- Inclination to the J2000 equator
- 49.33 °
- From JPL orbital elements
Radiation & temperature
- Insolation
- 0.0346 S⊕ · 3% of the sunlight Earth receives
- Computed from the distance to the Sun (inverse-square; Earth's sunlight = 1), before any atmosphere.
Discovery & history
- By
- C.D. Perrine
Himalia was discovered in 1904 by C.D. Perrine. Jupiter's moons are named after lovers, daughters and descendants of the god Jupiter (the Greek Zeus). Beyond its discovery and naming, little more about it has been individually recorded.
Images
Images from open archives · credit shown per image