Himalia (moon)
Moon of Jupiter (Jupiter VI) / From Wikipedia, the free encyclopedia
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Himalia (/hɪˈmeɪliə, hɪˈmɑːliə/), or Jupiter VI, is the largest irregular satellite of Jupiter, with a diameter of at least 140 km (90 mi).[5] It is the sixth largest Jovian satellite, after the four Galilean moons and Amalthea. It was discovered by Charles Dillon Perrine at the Lick Observatory on 3 December 1904 and is named after the nymph Himalia, who bore three sons of Zeus (the Greek equivalent of Jupiter).[1] It is one of the largest planetary moons in the Solar System not imaged in detail, and the third largest not imaged in detail within the orbit of Neptune.[lower-alpha 2]
This article is about Jupiter's irregular moon. For the mythological figure, see Himalia (mythology).
Quick Facts Discovery, Discovered by ...
Discovery[1] | |
---|---|
Discovered by | Charles D. Perrine |
Discovery site | Lick Observatory |
Discovery date | 3 December 1904 |
Designations | |
Designation | Jupiter VI |
Pronunciation | /hɪˈmeɪliə/ or /hɪˈmɑːliə/[2] |
Named after | Ἱμαλία Himalia |
Adjectives | Himalian[3] |
Orbital characteristics[4] | |
Epoch 27 April 2019 (JD 2458600.5) | |
Observation arc | 114.25 yr (41,728 days) |
0.0761287 AU (11,388,690 km) | |
Eccentricity | 0.1537860 |
+248.29 d | |
94.30785° | |
1° 26m 59.616s / day | |
Inclination | 29.90917° (to the ecliptic) |
44.99935° | |
21.60643° | |
Satellite of | Jupiter |
Group | Himalia group |
Physical characteristics | |
Dimensions | 205.6 × 141.3 km (occultation, projected)[5] 150±20 × 120±20 km (Cassini estimate)[6] |
Mean diameter | 139.6±1.7 km[7] |
Mass | (4.2±0.6)×1018 kg[8] |
Mean density | 1.63 g/cm3 (assuming radius 85 km)[8][lower-alpha 1] |
~ 0.062 m/s2 (0.006 g) | |
~ 0.100 km/s | |
7.7819±0.0005 h[9] | |
Albedo | 0.057±0.008[7] |
Spectral type | C[7] |
14.6[10] | |
7.9[4] | |
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