(426) Hippo Main-belt Asteroid
Discovered on 25 August 1897 by A. Charlois at Nice.
Where Hippo is today
Seen from above the solar system on 2026-10-14: Hippo is 2.88 au from the Sun and 2.53 au from Earth. Computed from JPL's orbital elements.
Facts
| Number | 426 |
| Provisional designation | A897 RA |
| Orbit class | Main-belt Asteroid |
| Diameter | 138 km (#109 largest of 17,440 named asteroids with a measured size) |
| Albedo | 0.0400 |
| Rotation period | 67.5 hours |
| Spectral type | F |
| Absolute magnitude (H) | 8.55 |
| Orbital period | 4.90 years |
| Semi-major axis | 2.89 au |
| Perihelion – aphelion | 2.58 – 3.19 au |
| Eccentricity | 0.107 |
| Inclination | 19.5° |
| Closest distance between its orbit and Earth's (MOID) | 1.61 au |
Data: NASA/JPL Small-Body Database and the IAU Minor Planet Center.
More named asteroids discovered by A. Charlois
- (267) Tirza
- (272) Antonia
- (277) Elvira
- (282) Clorinde
- (283) Emma
- (284) Amalia
- (285) Regina
- (289) Nenetta
- (293) Brasilia
- (294) Felicia
- (296) Phaetusa
- (297) Caecilia
← (425) Cornelia · (427) Galene →