(706) Hirundo Main-belt Asteroid
Discovered on 9 October 1910 by J. Helffrich at Heidelberg.
Where Hirundo is today
Seen from above the solar system on 2026-10-14: Hirundo is 2.79 au from the Sun and 3.53 au from Earth. Computed from JPL's orbital elements.
Facts
| Number | 706 |
| Provisional designation | A910 TF |
| Orbit class | Main-belt Asteroid |
| Diameter | 30.8 km (#1,324 largest of 17,440 named asteroids with a measured size) |
| Albedo | 0.0810 |
| Rotation period | 22.0 hours |
| Spectral type | Cgh |
| Absolute magnitude (H) | 11.11 |
| Orbital period | 4.50 years |
| Semi-major axis | 2.73 au |
| Perihelion – aphelion | 2.19 – 3.26 au |
| Eccentricity | 0.196 |
| Inclination | 14.4° |
| Closest distance between its orbit and Earth's (MOID) | 1.20 au |
Data: NASA/JPL Small-Body Database and the IAU Minor Planet Center.
More named asteroids discovered by J. Helffrich
- (697) Galilea
- (698) Ernestina
- (699) Hela
- (700) Auravictrix
- (701) Oriola
- (702) Alauda
- (708) Raphaela
- (709) Fringilla
- (713) Luscinia
- (714) Ulula
- (2056) Nancy
- (3861) Lorenz
← (705) Erminia · (707) Steina →