Hegemone

Also known as Jupiter XXXIX, S/2003 J 8

moon of Jupiter

Key facts

Discovered by: Scott Sheppard et al.
Designation: Jupiter XXXIX
Pronunciation: / h ə ˈ dʒ ɛ m ə n iː /
Named after: Ἡγεμόνη Hēgemonē
Alternative names: S/2003 J 8
Adjectives: Hegemonean / ˌ h ɛ dʒ ə m ə ˈ n iː ə n /
Observation arc: 22 years, 2024-12-03 (last obs)
Semi major axis: 23 947 000 km
Orbital period sidereal: −739.6 days
Inclination: 155.2°
Satellite of: Jupiter
Group: Pasiphae group
Mean diameter: 3 km
Absolute magnitude h: 15.63 (45 obs)

via Wikipedia infobox

Wikidata facts

Diameter: 3
Mass: 45
Orbital period: -739.6

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provisional designation: S/2003 J 8
time of discovery or invention: 2003-02-08
albedo: 0.04
orbital eccentricity: 0.328
semi-major axis of an orbit: 23702531
apparent magnitude: 22.8
orbital inclination: 155.2
surface gravity: 0.0012
name: Júpiter XXXIX

Sources (4)

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Article

Hegemone /həˈdʒɛməniː/, also known as Jupiter XXXIX, is a natural satellite of Jupiter. It was discovered by a team of astronomers from the University of Hawaiʻi led by Scott S. Sheppard in 2003, and given the temporary designation S/2003 J 8.

Hegemone is about 3 kilometres in diameter, and orbits Jupiter at an average distance of 23,703,000 km in 745.500 days, at an inclination of 153° to the ecliptic (151° to Jupiter's equator), in a retrograde direction and with an eccentricity of 0.4077.