S / 2017 J 9
S / 2017 J 9 | |
---|---|
Central body | Jupiter |
Properties of the orbit | |
Major semi-axis | 21.5 million km |
Periapsis | unknown |
Apoapsis | unknown |
eccentricity | 0.23 |
Orbit inclination | 152.7 ° |
Orbital time | 639 d |
Physical Properties | |
discovery | |
Explorer | |
Remarks | Values relatively uncertain, as so far only 15 observations from February 24, 2017 to May 17, 2018 |
S / 2017 J 9 (also Jupiter LXX) is one of the smaller moons of the planet Jupiter .
discovery
S / 2017 J 9 was discovered by astronomer Scott S. Sheppard in 2017 . The moon has not yet been given an official name - the moons of Jupiter are usually female figures from Greek mythology - but is provisionally designated as S / 2017 J 9 in accordance with the system of the International Astronomical Union (IAU).
Orbit data
S / 2017 J 9 orbits Jupiter with a major semi-axis of approx. 21.5 million kilometers in approx. 639 days. The track has an eccentricity of 0.23. The orbit incline is 152.7 °.
Physical data
Based on the brightness of the object, the diameter can be estimated to be about 1 km.
Web links
- MPEC 2017-O17: S / 2017 J 9 July 17, 2018 (discovery)
- MPC 111804: Numbering of Natural Satellites September 25, 2018 (numbering)
swell
- ↑ Gareth V. Williams: MPEC 2018-O17: S / 2017 J 9 ( en ) In: Minor Planet Center . International Astronomical Union . July 17, 2018. Retrieved August 5, 2018.
before | Jupiter moons | after that |
S / 2017 J 8 | S / 2017 J 9 |
Ersa (moon) |