(9030) Othryoneus Jupiter Trojan
Discovered on 30 October 1989 by S. J. Bus at Cerro Tololo.
Othryoneus promised he would fight for Troy in exchange for being allowed to marry Cassandra, King Priam's daughter. He was speared in the belly by Idomeneus who taunted Othryoneus by offering a beautiful young Greek woman for marriage if he were to change sides and fight against Troy.Naming citation (WGSBN Bull. 1, #12, 7), IAU / Minor Planet Center, via NASA/JPL
Where Othryoneus is today
Seen from above the solar system on 2026-10-14: Othryoneus is 5.23 au from the Sun and 4.82 au from Earth. Computed from JPL's orbital elements.
Facts
| Number | 9030 |
| Provisional designation | 1989 UX5 |
| Orbit class | Jupiter Trojan |
| Diameter | 32.2 km (#1,270 largest of 17,440 named asteroids with a measured size) |
| Albedo | 0.0620 |
| Rotation period | 6.30 hours |
| Absolute magnitude (H) | 11.22 |
| Orbital period | 12.3 years |
| Semi-major axis | 5.33 au |
| Perihelion – aphelion | 5.23 – 5.42 au |
| Eccentricity | 0.0178 |
| Inclination | 4.22° |
| Closest distance between its orbit and Earth's (MOID) | 4.25 au |
Data: NASA/JPL Small-Body Database and the IAU Minor Planet Center.
Also discovered on 30 October 1989
- (4290) Heisei
- (4716) Urey
- (5479) Grahamryder
- (6306) Nishimura
- (10078) Stanthorpe
- (11282) Hanakusa
- (14380) Bussey