(54598) Bienor Centaur
Discovered on 27 August 2000 by Deep Ecliptic Survey at Cerro Tololo.
Bienor, one of the centaurs who tried to kidnap the bride Hippodame and other women at the wedding of Pirithous, was overcome by the hero Theseus, who jumped on his back, smashed his face and pounded his temples. The name was suggested by E. K. Elliot.Naming citation (20040107/MPCPages.arc), IAU / Minor Planet Center, via NASA/JPL
Where Bienor is today
Seen from above the solar system on 2026-10-14: Bienor is 13.2 au from the Sun and 13.5 au from Earth. Computed from JPL's orbital elements.
Facts
| Number | 54598 |
| Provisional designation | 2000 QC243 |
| Orbit class | Centaur |
| Diameter | 188 km (#40 largest of 17,440 named asteroids with a measured size) |
| Albedo | 0.0500 |
| Rotation period | 9.14 hours |
| Absolute magnitude (H) | 7.49 |
| Orbital period | 67.7 years |
| Semi-major axis | 16.6 au |
| Perihelion – aphelion | 13.2 – 20.0 au |
| Eccentricity | 0.206 |
| Inclination | 20.7° |
| Closest distance between its orbit and Earth's (MOID) | 12.2 au |
Data: NASA/JPL Small-Body Database and the IAU Minor Planet Center.
Also discovered on 27 August 2000
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- (19783) Antoniromanya
- (36472) Ebina
- (36614) Saltis
- (61912) Storrs
- (92893) Michaelperson
- (148342) Carverbierson
- (208196) Matthiashahn
- (231842) Graemekeleher