Harpalyke (moon)

Harpalyke or , is a non-spherical moon of Jupiter. It was found by a team of astronomers from the University of Hawaii led by Scott S. Sheppard in 2000, and given the designation .IAUC 7555: Satellites of Jupiter 2001 January 5 (discovery)MPEC 2001-A28: S/2000 J 2, S/2000 J 3, S/2000 J 4, S/2000 J 5, S/2000 J 6 2001 January 5 (discovery and ephemeris) In August 2003,the moon was named after Harpalyke,IAUC 7998: Satellites of Jupiter 2002 October 22 (naming the moon) the incestuous daughter of Klymenos, who was in some accounts a lover of Zeus (Jupiter).

Harpalyke belongs to the Ananke group, believed to be the remnants of a break-up of a captured asteroid.Sheppard, S. S.; and Jewitt, D. C.; An Abundant Population of Small Irregular Satellites Around Jupiter, Nature, Vol. 423 (May 2003), pp. 261-263Nesvorný, D.; Alvarellos, J. L. A.; Dones, L.; and Levison, H. F.; Orbital and Collisional Evolution of the Irregular Satellites , The Astronomical Journal, Vol. 126 (2003), pp. 398–429 It is about 4 kilometres in diameterSheppard, S. S.; Jewitt, D. C.; and Porco, C. C.; Jupiter's Outer Satellites and Trojans, in Jupiter: The Planet, Satellites and Magnetosphere, edited by Fran Bagenal, Timothy E. Dowling, William B. McKinnon, Cambridge Planetary Science, Vol. 1, Cambridge, UK: Cambridge University Press, , 2004, pp. 263-280 and appears grey similar to C-type asteroids.Grav, T.; Holman, M. J.; Gladman, B. J.; and Aksnes, K.; Photometric Survey of the Irregular Satellites, Icarus, Vol. 166 (2003), pp. 33-45 The moon orbits Jupiter at an average distance of 21,064,000 km in 624.542 days, at an inclination of 147° to the ecliptic (147° to Jupiter's equator) with an orbital eccentricity of 0.2441.

 References 

 Ephemeris IAU-MPC NSES
 Mean orbital parameters NASA JPL

 Other websites 
 David Jewitt pages
 Scott Sheppard pages

Category:Jupiter's moons