 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° 31 36.216 / day |
| Inclination | 164.45891° (to ecliptic) |
| Longitude of ascending node | 203.99552° |
| Argument of perihelion | 219.75296° |
| Satellite of | Jupiter |
| Group | Carme group |
| Physical characteristics | |
| Mean diameter | 4 km |
| Albedo | 0.04 (assumed) |
| Spectral type | B–V = 0.78 ± 0.05, V–R = 0.53 ± 0.04 |
| Apparent magnitude | 22.5 |
| Absolute magnitude (H) | 16.0 |
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 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°.
References
- ^ MPEC 2001-A28: S/2000 J 2, S/2000 J 3, S/2000 J 4, S/2000 J 5, S/2000 J 6 2001 January 5 (discovery and ephemeris)
- ^ "M.P.C. 115890" (PDF). Minor Planet Circular. Minor Planet Center. 27 August 2019.
- "Planetary Satellite Physical Parameters". Jet Propulsion Laboratory. 19 February 2015. Retrieved 27 November 2020.
- Graykowski, Ariel; Jewitt, David (5 April 2018). "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.
- Sheppard, Scott. "Scott S. Sheppard - Jupiter Moons". Department of Terrestrial Magnetism. Carnegie Institution for Science. Retrieved 27 November 2020.
- IAUC 7555: Satellites of Jupiter Archived 2002-09-16 at the Wayback Machine 2001 January 5 (discovery)
- IAUC 7998: Satellites of Jupiter 2002 October 22 (naming the moon)
| Moons of Jupiter | |
|---|---|
| Listed in increasing approximate distance from Jupiter | |
| Inner moons | |
| Galilean moons | |
| Themisto | |
| Himalia group (9) | |
| Carpo group (2) | |
| Valetudo | |
| Ananke group (26) | |
| Carme group (30) | |
| Pasiphae group (18) | |
| See also | |
