 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 |
| 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) |
| 0.1507123 AU (22,546,240 km) | |
| Eccentricity | 0.2487538 |
| –691.62 d | |
| 150.90619° | |
| 0° 31m 13.862s / day | |
| Inclination | 165.95236° (to ecliptic) |
| 14.91608° | |
| 283.34358° | |
| Satellite of | Jupiter |
| Group | Carme group |
| Physical characteristics[6] | |
| 5 km | |
| Albedo | 0.04 (assumed) |
Spectral type | D |
| 21.9[7] | |
| 15.5[5] | |
Taygete /teɪˈɪdʒətiː/, also known as Jupiter XX, is a little retrograde irregular satellite of Jupiter.
Discovery and Naming
It was discovered by a team of astronomers from the University of Hawaiʻi led by Scott S. Sheppard, in 2000, and given the temporary designation S/2000 J 9.[8][1][9]
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).
Orbit
Taygete orbits Jupiter at an average distance of 22,546,240 km in 691,62 days, at an inclination of 165° to the ecliptic, in a retrograde direction and with an eccentricity of 0.248.
It belongs to the Carme group, made up a tightly of irregular retrograde moons orbiting Jupiter at a distance ranging between 22.7–23.5 million km, at an inclination of about 165°, and eccentricities between 0.24 and 0.28.
Physical characteristics
Taygetes' estimated diameter is 5 kilometers, assuming an albedo of 4%.
Like the other members of the Carme group (Exception Kalyke), it is light red in color (B−V=0.56, V−R=0.52), similar to D-type asteroids.
Origin
Taygete probably did not form near Jupiter but was captured by Jupiter later. Much like the other members of the Carme group, which have similar orbits, Taygete is likely to be the remnant of a broken, captured heliocentric asteroid.
References
- ^ a b MPEC 2001-A29: S/2000 J 7, S/2000 J 8, S/2000 J 9, S/2000 J 10, S/2000 J 11[permanent dead link] 2001 January 15 (discovery and ephemeris)
- ^ Noah Webster (1884) A Practical Dictionary of the English Language
- ^ "Taygete". Dictionary.com Unabridged (Online). n.d.
- ^ There is also 'Taygetian', but that's for Taygetus.
- ^ a b "M.P.C. 110499" (PDF). Minor Planet Circular. Minor Planet Center. 29 May 2018.
- ^ "Planetary Satellite Physical Parameters". Jet Propulsion Laboratory. 19 February 2015. Retrieved 26 November 2020.
- ^ Sheppard, Scott. "Scott S. Sheppard - Jupiter Moons". Department of Terrestrial Magnetism. Carnegie Institution for Science. Retrieved 26 November 2020.
- ^ IAUC 7555: Satellites of Jupiter Archived 2002-09-16 at the Wayback Machine 2001 January 5 (discovery)
- ^ MPEC 2001-T59: S/2000 J 8, S/2000 J 9, S/2000 J 10 2001 October 15 (revised ephemeris)
- ^ IAUC 7998: Satellites of Jupiter 2002 October 22 (naming the moon)
