Eukelade

Eukelade

Images of Eukelade taken by Scott Sheppard on 4 March 2003
Discovery
Discovered by	Scott S. Sheppard et al.
Discovery date	2003
Designations
Designation	Jupiter XLVII
Pronunciation	/juːˈkɛlədiː/
Named after	Ευκελάδη Eykeladē
Alternative names	S/2003 J 1
Adjectives	Eukeladean /ˌjuːkɪləˈdiːən/
Orbital characteristics [1]
Semi-major axis	23661000 km
Eccentricity	0.272
Orbital period (sidereal)	−693.02 days[2]
Mean anomaly	98.4°
Inclination	165.5°
Longitude of ascending node	206.3°
Argument of perihelion	325.6°
Satellite of	Jupiter
Group	Carme group
Physical characteristics
Mean diameter	4 km
Spectral type	B–V = 0.79 ± 0.07, V–R = 0.50 ± 0.07[3]
Apparent magnitude	22.6
Absolute magnitude (H)	15.9[2]

Eukelade /juːˈkɛlədiː/, also known as Jupiter XLVII, 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 2003, and received the temporary designation S/2003 J 1.^[4][5][6]

Eukelade is about 4 kilometres in diameter, and orbits Jupiter at an average distance of 23,484,000 km in 693.02 days, at an inclination of 164° to the ecliptic (165° to Jupiter's equator), in a retrograde direction and with an eccentricity of 0.2829.

It was named in March 2005 after Eucelade - according to John Tzetzes, listed by some (unnamed) Greek writers as one of the Muses.^[7]

Eukelade 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°.

References

1. S.S. Sheppard (2019), Moons of Jupiter, Carnegie Science, on line
2. "M.P.C. 127088" (PDF). Minor Planet Circular. Minor Planet Center. 17 November 2020.
3. Graykowski, Ariel; Jewitt, David (2018-04-05). "Colors and Shapes of the Irregular Planetary Satellites". The Astronomical Journal. 155 (4): 184. arXiv:1803.01907. doi:10.3847/1538-3881/aab49b. ISSN 1538-3881.
4. IAUC 8087: Satellites of Jupiter 2003 March 4 (discovery)
5. MPEC 2003-E11: S/2003 J 1, 2003 J 2, 2003 J 3, 2003 J 4, 2003 J 5, 2003 J 6, 2003 J 7 2003 March 4 (discovery and ephemeris)
6. MPEC 2003-E29: S/2003 J 9, 2003 J 10, 2003 J 11, 2003 J 12; S/2003 J 1, 2003 J 6 2003 April 3 (revised ephemeris)
7. * Marta Cardin, Olga Tribulato: Enumerating the Muses: Tzetzes in Hes. Op. 1 and the Parody of Catalogic Poetry in Epicharmus. In: Marco Ercoles, Lara Pagani, Filippomaria Pontani, Giuseppe Ucciardello: Approaches to Greek Poetry: Homer, Hesiod, Pindar, and Aeschylus in Ancient Exegesis (= Trends in Classics. Supplementary Volumes 73). De Gruyter, Berlin/Boston 2019, p. 161–192; here p. 171.