Harpalyke (moon)
IFA Hawaii
Harpalyce ( Jupiter XXII) is one of the smallest known outer moons of Jupiter.
Discovery
Harpalyce was discovered on 23 November 2000 by astronomers at the University of Hawaii. It was initially provisional designation S/2000 J 5
It was named after the moon Harpalyce, a daughter of Clymenus from Greek mythology.
Path data
Harpalyce orbits Jupiter at an average distance of 21,105,000 km in 623 days and 7 hours. The track has an eccentricity of 0.226. With an inclination of 148.6 ° to the local Laplace plane the web is retrograde, that is, the moon moves against the direction of rotation of Jupiter around the planet.
Because of their web properties is Harpalyce the Ananke group, named after Jupiter's moon Ananke assigned.
Physical data
Harpalyce has an average diameter of about 4 km. Their density is estimated to be 2.6 g / cm ³. It is probably made up predominantly of silicate rock. Harpalyce has a very dark surface with an albedo of 0.04, i.e., only 4% of the incident solar light is reflected. Their apparent brightness is 22.2 m.