(81) Terpsichore Main-belt Asteroid
Discovered on 30 September 1864 by E. W. Tempel at Marseilles.
Where Terpsichore is today
Seen from above the solar system on 2026-10-14: Terpsichore is 3.45 au from the Sun and 4.30 au from Earth. Computed from JPL's orbital elements.
Facts
| Number | 81 |
| Provisional designation | A864 SA |
| Orbit class | Main-belt Asteroid |
| Diameter | 118 km (#168 largest of 17,440 named asteroids with a measured size) |
| Albedo | 0.0450 |
| Rotation period | 10.9 hours |
| Spectral type | C |
| Absolute magnitude (H) | 8.66 |
| Orbital period | 4.82 years |
| Semi-major axis | 2.85 au |
| Perihelion – aphelion | 2.25 – 3.46 au |
| Eccentricity | 0.212 |
| Inclination | 7.80° |
| Closest distance between its orbit and Earth's (MOID) | 1.27 au |
Data: NASA/JPL Small-Body Database and the IAU Minor Planet Center.
More named asteroids discovered by E. W. Tempel
← (80) Sappho · (82) Alkmene →