Erinome

Erinome, also known as Jupiter XXV, is a retrograde irregular satellite of Jupiter. It was discovered by a team of astronomers from the University of Hawaii led by Scott S. Sheppard et al. in 2000, and given the temporary designation S/2000 J 4.[2][3]

Erinome
Discovery
Discovered byScott Sheppard et al.
Discovery date2000
Designations
Designation
Jupiter XXV
Pronunciation(see text)
Named after
Erinoma (Greek form unknown)
S/2000 J 4
Orbital characteristics [1]
23279000 km
Eccentricity0.266
−728.3 days
131.1°
Inclination164.9°
321.7°
356.0°
Satellite ofJupiter
GroupCarme group
Physical characteristics
Mean diameter
3 km
22.8

    Erinome is about 3.2 kilometres in diameter, and orbits Jupiter at an average distance of 22,986,000 km in 711.965 days, at an inclination of 164° to the ecliptic (162° to Jupiter's equator), in a retrograde direction and with an eccentricity of 0.2552.

    It belongs to the Carme group, made up of irregular retrograde moons orbiting Jupiter at a distance ranging between 23 and 24 Gm and at an inclination of about 165°.

    Name

    Erinome was named in October 2002 after the mythological Erinoma, a Cypriot woman said by the discovery group to be a "daughter of Celes, compelled by Venus to fall in love with Jupiter."[4] (However, it was Jupiter whom Venus made fall in love with Erinoma, in order to ruin her.[5])

    The final -a vowel of the name was changed to -e to accord with IAU naming conventions for retrograde moons.[4] The story is only known in Latin, and manuscripts have the name as Erinoma, Erinona and Erittoma. The original Greek name, and thus the stressed syllable in Latin, is unknown. It might be a late corruption of Eurynome,[5] in which case the stress would be on the second syllable (/ɛˈrɪnəmiː/?). Since As of 2020 there is no moon named 'Eurynome', this would not be ambiguous.

    References
    1. S.S. Sheppard (2019), Moons of Jupiter, Carnegie Science, on line
    2. IAUC 7555: Satellites of Jupiter Archived 2002-09-16 at the Wayback Machine 2001 January 5 (discovery)
    3. MPEC 2001-A28: S/2000 J 2, S/2000 J 3, S/2000 J 4, S/2000 J 5, S/2000 J 6 2001 January 5 (discovery and ephemeris)
    4. USGS Gazetteer of Planetary Nomenclature
    5. See the summary in C. M. C. Green (2007) Roman Religion and the Cult of Diana at Aricia, p. 214, fn. 7, and a fuller account in Joseph Fontenrose (1981) Orion: The Myth of the Hunter and the Huntress, p. 170–172
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