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
Show 10 more facts
- discoverer or inventor
- Jan Kleyna
- 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
via Wikidata · CC0