(59) Elpis Main-belt Asteroid
Discovered on 12 September 1860 by J. Chacornac at Paris.
Where Elpis is today
Seen from above the solar system on 2026-10-14: Elpis is 2.49 au from the Sun and 2.02 au from Earth. Computed from JPL's orbital elements.
Facts
| Number | 59 |
| Provisional designation | A860 RA |
| Orbit class | Main-belt Asteroid |
| Diameter | 165 km (#62 largest of 17,440 named asteroids with a measured size) |
| Albedo | 0.0440 |
| Rotation period | 13.7 hours |
| Spectral type | CP |
| Absolute magnitude (H) | 8.08 |
| Orbital period | 4.47 years |
| Semi-major axis | 2.71 au |
| Perihelion – aphelion | 2.40 – 3.03 au |
| Eccentricity | 0.116 |
| Inclination | 8.65° |
| Closest distance between its orbit and Earth's (MOID) | 1.40 au |
Data: NASA/JPL Small-Body Database and the IAU Minor Planet Center.
More named asteroids discovered by J. Chacornac
← (58) Concordia · (60) Echo →