S/2003 J 9

University of Hawaii

S/2003 J 9 is one of the smaller moons of the planet Jupiter.

Discovery

S/2003 J 9 was discovered on February 6, 2003 by astronomers at the University of Hawaii. The moon has not yet received no official name - these are among the moons of Jupiter usually female figures from Greek mythology and is therefore provisional, according to the Nomenclature of the International Astronomical Union ( IAU), S/2003 J called 9.

Path data

S/2003 J 9 orbits Jupiter at an average distance of 22,441,680 km in 683 days, 6 hours and 58 minutes. The track has an eccentricity of 0.269. With an inclination of 164.5 °, the track is retrograde, that is, the moon moves opposite to the direction of Jupiter's rotation around the planet.

Because of its web properties is S/2003 J 9 of the Carme group, named after Jupiter's moon Carme assigned.

Physical data

S/2003 J 9 has a diameter of about one kilometer. Its density is estimated to be 2.6 g / cm ³. He is probably made ​​up predominantly of silicate rock. It has a very dark surface with an albedo of 0.04, i.e., only four percent of the incident solar light is reflected. Its apparent magnitude is 23.7 m.

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