(5144) Achates Jupiter Trojan
Discovered on 2 December 1991 by C. S. Shoemaker at Palomar.
Where Achates is today
Seen from above the solar system on 2026-10-14: Achates is 6.05 au from the Sun and 5.54 au from Earth. Computed from JPL's orbital elements.
Facts
| Number | 5144 |
| Provisional designation | 1991 XX |
| Orbit class | Jupiter Trojan |
| Diameter | 81.0 km (#370 largest of 17,440 named asteroids with a measured size) |
| Albedo | 0.0740 |
| Rotation period | 5.96 hours |
| Absolute magnitude (H) | 9.18 |
| Orbital period | 11.8 years |
| Semi-major axis | 5.18 au |
| Perihelion – aphelion | 3.78 – 6.59 au |
| Eccentricity | 0.272 |
| Inclination | 8.91° |
| Closest distance between its orbit and Earth's (MOID) | 2.76 au |
Data: NASA/JPL Small-Body Database and the IAU Minor Planet Center.
More named asteroids discovered by C. S. Shoemaker
- (2459) Spellmann
- (2511) Patterson
- (2532) Sutton
- (2586) Matson
- (2614) Torrence
- (2686) Linda Susan
- (2705) Wu
- (2742) Gibson
- (2748) Patrick Gene
- (2773) Brooks
- (2834) Christy Carol
- (2891) McGetchin
← (5143) Heracles · (5145) Pholus →