Key facts
- Discovered by
- Scott S. Sheppard , David C. Jewitt , Jan T. Kleyna , Yanga R. Fernández
- Discovery site
- Mauna Kea Obs.
- Discovery date
- 6 February 2003
- Observation arc
- 15.19 yr (5,545 d )
- Semi major axis
- 0.1615575 AU (24,168,660 km)
- Orbital period sidereal
- 2.10 yr (767.60 d)
- Mean anomaly
- 109.89836 °
- Mean motion
- 0° 28 8.381 / day
- Inclination
- 166.33403° (to ecliptic ) , 13.66597° (retrograde)
- Longitude of ascending node
- 130.59522°
- Argument of perihelion
- 45.62861°
- Satellite of
- Jupiter
- Group
- Carme group
- Mean diameter
- ≈ 1 km
- Albedo
- 0.04 (assumed)
- Absolute magnitude h
- 16.91 (29 obs)
via Wikipedia infobox
Article
S/2003 J 9 is a retrograde irregular satellite of Jupiter. It was discovered by a team of astronomers from the University of Hawaiʻi led by Scott S. Sheppard in 2003.
S/2003 J 9 is about 1 kilometre in diameter, and orbits Jupiter at an average distance of 0.162 AU (24,200,000 km) in 767.60 days, at an inclination of 166.3° to the ecliptic (166° to Jupiter's equator), in a retrograde direction and with an eccentricity of 0.17.