Taygete (moon)

Taygete /teɪˈɪdʒətiː/, also known as Jupiter XX, 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 2000, and given the temporary designation S/2000 J 9.^[8][1][9]

Taygete

Taygete imaged by the Canada-France-Hawaii Telescope in December 2001
Discovery [1]
Discovered by	Scott S. Sheppard David C. Jewitt Yanga R. Fernandez Eugene A. Magnier
Discovery site	Mauna Kea Observatory
Discovery date	25 November 2000
Designations
Designation	Jupiter XX
Pronunciation	/teɪˈɪdʒətiː/[2][3]
Named after	Τᾱϋγέτη Tāÿgetē
Alternative names	S/2000 J 9
Adjectives	Taygetean /ˌteɪədʒəˈtiːən/[4]
Orbital characteristics [5]
Epoch 23 March 2018 (JD 2458200.5)
Observation arc	17.46 yr (6,377 days)
Semi-major axis	0.1507123 AU (22,546,240 km)
Eccentricity	0.2487538
Orbital period (sidereal)	–691.62 d
Mean anomaly	150.90619°
Mean motion	0° 31m 13.862s / day
Inclination	165.95236° (to ecliptic)
Longitude of ascending node	14.91608°
Argument of perihelion	283.34358°
Satellite of	Jupiter
Group	Carme group
Physical characteristics[6]
Mean diameter	5 km
Albedo	0.04 (assumed)
Apparent magnitude	21.9[7]
Absolute magnitude (H)	15.5[5]

Taygete is about 5 kilometres in diameter, and orbits Jupiter at an average distance of 22,439,000 km in 691.62 days, at an inclination of 165° to the ecliptic (163° to Jupiter's equator), in a retrograde direction and with an eccentricity of 0.3678.

It was named in October 2002^[10] after Taygete, one of the Pleiades, daughter of the Titan Atlas and mother of Lacedaemon by Zeus (Jupiter).

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°. Like Carme but unlike Kalyke, it is light red in color (B−V=0.56, V−R=0.52).^[11]