Isonoe (moon)
Isonoe /aɪˈsɒnoʊ.iː/, also known as Jupiter XXVI, 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 6.
Isonoe imaged by the Canada-France-Hawaii Telescope in December 2001 | |
| Discovery | |
|---|---|
| Discovered by | Scott S. Sheppard David C. Jewitt Yanga R. Fernandez Eugene A. Magnier |
| Discovery site | Mauna Kea Observatory |
| Discovery date | 23 November 2000 |
| Designations | |
Designation | Jupiter XXVI |
| Pronunciation | /aɪˈsɒnoʊ.iː/ |
Named after | Ισονόη Isonoē |
Alternative names | S/2000 J 6 |
| Adjectives | Isonoean /ˌaɪsənoʊˈiːən/ |
| Orbital characteristics | |
| Epoch 23 March 2018 (JD 2458200.5) | |
| Observation arc | 17.46 yr (6,379 days) |
Semi-major axis | 0.1559024 AU (23,322,670 km) |
| Eccentricity | 0.2263119 |
Orbital period (sidereal) | –688.61 d |
Mean anomaly | 148.53423° |
Mean motion | 0° 31m 36.216s / day |
| Inclination | 164.45891° (to ecliptic) |
Longitude of ascending node | 203.99552° |
| 219.75296° | |
| Satellite of | Jupiter |
| Group | Carme group |
| Physical characteristics | |
Mean diameter | 4 km |
| Albedo | 0.04 (assumed) |
| 22.5 | |
| 16.0 | |
Isonoe is about 4 kilometres in diameter, and orbits Jupiter at an average distance of 23,833,000 km in 688.61 days, at an inclination of 166° to the ecliptic (169° to Jupiter's equator), in a retrograde direction and with an eccentricity of 0.166.
It was named in October 2002 after Isonoe, one of the Danaïdes in Greek mythology, and a lover of Zeus (Jupiter).
Isonoe 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°.