| Hegemone | |
| Adjective: | Hegemonean |
| Named After: | Ἡγεμόνη Hēgemonē |
| Discoverer: | Scott Sheppard et al. |
| Discovered: | 2003 |
| Mpc Name: | Jupiter XXXIX |
| Alt Names: | S/2003 J 8 |
| Orbit Ref: |  [1] |
| Inclination: | 155.2° |
| Eccentricity: | 0.328 |
| Period: | −739.6 days |
| Satellite Of: | Jupiter |
| Group: | Pasiphae group |
| Magnitude: | 22.8 |
| Mean Diameter: | 3 km |
Hegemone, also known as , is a natural satellite of Jupiter. It was discovered by a team of astronomers from the University of Hawaii led by Scott S. Sheppard in 2003, and given the temporary designation .[2] [3]
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.
It was named in March 2005 after Hegemone, one of the Graces, and a daughter of Zeus (Jupiter).[4]
Hegemone belongs to the Pasiphae group, irregular retrograde moons orbiting Jupiter at distances ranging between 22.8 and 24.1 Gm, and with inclinations ranging between 144.5° and 158.3°.