(2456) Palamedes Jupiter Trojan
Discovered on 30 January 1966 by Purple Mountain Observatory at Nanking.
Where Palamedes is today
Seen from above the solar system on 2026-10-14: Palamedes is 5.40 au from the Sun and 6.38 au from Earth. Computed from JPL's orbital elements.
Facts
| Number | 2456 |
| Provisional designation | 1966 BA1 |
| Orbit class | Jupiter Trojan |
| Diameter | 65.9 km (#511 largest of 17,440 named asteroids with a measured size) |
| Albedo | 0.0710 |
| Rotation period | 7.25 hours |
| Absolute magnitude (H) | 9.25 |
| Orbital period | 11.6 years |
| Semi-major axis | 5.14 au |
| Perihelion – aphelion | 4.75 – 5.52 au |
| Eccentricity | 0.0747 |
| Inclination | 13.9° |
| Closest distance between its orbit and Earth's (MOID) | 3.80 au |
Data: NASA/JPL Small-Body Database and the IAU Minor Planet Center.