Euanthe (moon)

Euanthe /juːˈænθiː/, also known as Jupiter XXXIII, 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 in 2001, and given the temporary designation S/2001 J 7.[3][1]

Euanthe

Discovery images of Euanthe by the Canada-France-Hawaii Telescope in December 2001
Discovery[1]
Discovered by	Scott S. Sheppard et al.
Discovery site	Mauna Kea Obs.
Discovery date	11 December 2001
Designations
Designation	Jupiter XXXIII
Pronunciation	/juːˈænθiː/
Named after	Ευάνθη Eyanthē
Alternative names	S/2001 J 7
Adjectives	Euanthean /juːænˈθiːən/
Orbital characteristics [2]
Semi-major axis	20799000 km
Eccentricity	0.232
Orbital period	−620.6 days
Mean anomaly	130.5°
Inclination	148.9°
Longitude of ascending node	271.0°
Argument of perihelion	316.0°
Satellite of	Jupiter
Group	Ananke group
Physical characteristics
Mean diameter	3 km
Apparent magnitude	22.8

Euanthe is about 3 kilometres in diameter, and orbits Jupiter at an average distance of 20,465 Mm in 598.093 days, at an inclination of 143° to the ecliptic (142° to Jupiter's equator) with an eccentricity of 0.2001.

It was named in August 2003 after Euanthe, who was the mother of the Graces, according to some Greek writers.[4]

Euanthe belongs to the Ananke group, retrograde irregular moons that orbit Jupiter between 19.3 and 22.7 Gm, at inclinations of roughly 150°.

References

1. Brian G. Marsden (May 15, 2002). "MPEC 2002-J54: Eleven New Satellites of Jupiter". International Astronomical Union Minor Planet Center.
2. S.S. Sheppard (2019), Moons of Jupiter, Carnegie Science, on line
3. Daniel W. E. Green (May 16, 2002). "IAUC 7900: Satellites of Jupiter". International Astronomical Union.
4. Daniel W. E. Green (August 8, 2003). "IAUC 8177: Satellites of Jupiter, Saturn, Uranus". International Astronomical Union. Archived from the original on March 27, 2012.