(207) Hedda Main-belt Asteroid
Discovered on 17 October 1879 by J. Palisa at Pola.
Where Hedda is today
Seen from above the solar system on 2026-10-14: Hedda is 2.22 au from the Sun and 3.04 au from Earth. Computed from JPL's orbital elements.
Facts
| Number | 207 |
| Provisional designation | A879 UA |
| Orbit class | Main-belt Asteroid |
| Diameter | 57.9 km (#620 largest of 17,440 named asteroids with a measured size) |
| Albedo | 0.0580 |
| Rotation period | 30.1 hours |
| Spectral type | C |
| Absolute magnitude (H) | 10.25 |
| Orbital period | 3.45 years |
| Semi-major axis | 2.28 au |
| Perihelion – aphelion | 2.22 – 2.35 au |
| Eccentricity | 0.0285 |
| Inclination | 3.80° |
| Closest distance between its orbit and Earth's (MOID) | 1.21 au |
Data: NASA/JPL Small-Body Database and the IAU Minor Planet Center.