(9054) Hippocastanum Main-belt Asteroid
Discovered on 30 December 1991 by E. W. Elst at Haute Provence.
Named for Hippocastanaceae, the horse-chestnut family, with only two genera and 15 species. Aesculus hippocastanum (common horse-chestnut) is known for its creamy yellow flowers, in large, conical, upright panicles.Naming citation (WGSBN Bull. 2, #9, 6), IAU / Minor Planet Center, via NASA/JPL
Where Hippocastanum is today
Seen from above the solar system on 2026-10-14: Hippocastanum is 3.05 au from the Sun and 3.82 au from Earth. Computed from JPL's orbital elements.
Facts
| Number | 9054 |
| Provisional designation | 1991 YO |
| Orbit class | Main-belt Asteroid |
| Rotation period | 194 hours |
| Absolute magnitude (H) | 13.49 |
| Orbital period | 4.25 years |
| Semi-major axis | 2.63 au |
| Perihelion – aphelion | 2.13 – 3.12 au |
| Eccentricity | 0.188 |
| Inclination | 14.3° |
| Closest distance between its orbit and Earth's (MOID) | 1.18 au |
Data: NASA/JPL Small-Body Database and the IAU Minor Planet Center.
Also discovered on 30 December 1991
- (6159) Andreseloy
- (6793) Palazzolo
- (7016) Conandoyle
- (9356) Elineke
- (9604) Bellevanzuylen
- (18381) Massenet
- (19188) Dittebesard