(13964) La Billardiere Outer Main-belt Asteroid
Discovered on 3 August 1991 by E. W. Elst at La Silla.
French naturalist Jacques-Julien Houtou de La Billardière (1755-1834) joined Admiral d´Entrecasteaux on the Recherche in 1791, in order to find the long-lost La Pérouse, who perished with his ships in 1788, after leaving Botany Bay. An account of this voyage is given in Relation du voyage á la recherche de La Pérouse (1799).Naming citation (20051215/MPCPages.arc), IAU / Minor Planet Center, via NASA/JPL
Where La Billardiere is today
Seen from above the solar system on 2026-10-14: La Billardiere is 2.73 au from the Sun and 1.75 au from Earth. Computed from JPL's orbital elements.
Facts
| Number | 13964 |
| Provisional designation | 1991 PO5 |
| Orbit class | Outer Main-belt Asteroid |
| Diameter | 11.4 km (#4,372 largest of 17,440 named asteroids with a measured size) |
| Albedo | 0.0720 |
| Rotation period | 6.24 hours |
| Absolute magnitude (H) | 13.52 |
| Orbital period | 5.75 years |
| Semi-major axis | 3.21 au |
| Perihelion – aphelion | 2.72 – 3.70 au |
| Eccentricity | 0.153 |
| Inclination | 0.593° |
| Closest distance between its orbit and Earth's (MOID) | 1.72 au |
Data: NASA/JPL Small-Body Database and the IAU Minor Planet Center.
Also named after someone called Julien
All asteroids named after someone called Julien
Also discovered on 3 August 1991
- (5522) De Rop
- (9859) Van Lierde
- (10334) Gibbon
- (13526) Libbrecht
- (13962) Delambre
- (13963) Euphrates
- (15745) Yuliya