Discovered by Shoemaker, C. S. Alternative names 1991 XX Observation arc 24409 days (66.83 yr) Discovered 2 December 1991 Discoverer Carolyn S. Shoemaker Discovery site Palomar Observatory | Discovery date 2 December 1991 Minor planet category Jupiter Trojan Orbital period 12 years Orbits Sun Named after Achates | |
Aphelion 6.6158 AU (989.71 Gm) (Q) Similar 911 Agamemnon, Solar System, 847 Agnia, Jupiter trojan, 132 Aethra | ||
5144 Achates (1991 XX) is a Jupiter Trojan discovered on December 2, 1991 by Shoemaker, C. S. at Palomar.
Photometric observations of this asteroid during 1996 were used to build a light curve showing a rotation period of 5.949 ± 0.014 hours with a brightness variation of 0.20 ± 0.01 magnitude.
Of the 230+ Jupiter trojans with an absolute magnitude (H) brighter than 11, it currently has the most eccentric orbit.
References
5144 Achates Wikipedia(Text) CC BY-SA