S/2003 J 19

IFA Hawaii

S/2003 J 19 is one of the smallest moons of Jupiter.

Discovery

S/2003 J 19 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 - but is in accordance with the Nomenclature of the International Astronomical Union ( IAU) tentatively identified as S/2003 J 19 denotes.

Path data

S/2003 J 19 orbits Jupiter at an average distance of 23,533,000 km in 740 days, 10 hours and 5 minutes. The track has an eccentricity of 0.2478. With an inclination of 165.153 ° to the ecliptic, the path is retrograde, that is, the moon moves against the direction of rotation of Jupiter around the planet.

Because of its web properties is S/2003 J 19 of the Carme group, named after Jupiter's moon Carme assigned.

Physical data

From the apparent magnitude of 23.7 m and the estimated albedo of 0.04 - that is, only 4% of the incident sunlight is reflected - is derived for S/2000 J 19 from a diameter of only about 2 km.

Still uncertain are the estimates of the mean density: There is strong evidence that the dwarf moon resembles the bodies of the asteroid belt. This results in a structure derives primarily derived from siliceous rocks, which in turn can expect an estimated density of 2.6 g / cm ³ in the case of a compact body. This value can, however, the moon should be more like a conglomerate cosmic debris, such as the asteroid Mathilde, even lie just above 1 g / cm ³.

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