(434453) Ayerdhal Main-belt Asteroid
Discovered on 9 August 2005 by B. Christophe at Saint-Sulpice.
Yal Ayerdhal (1959-2015) was a French novelist specializing in politically engaged science fiction. He authored over 20 novels and won several prestigious literary prizes. He was instrumental and inspirational raising modern French science fiction to its present literary level and was a champion of the rights of writers.Naming citation (MPC batch dated 2016-04-22), IAU / Minor Planet Center, via NASA/JPL
Where Ayerdhal is today
Seen from above the solar system on 2026-10-14: Ayerdhal is 2.89 au from the Sun and 2.96 au from Earth. Computed from JPL's orbital elements.
Facts
| Number | 434453 |
| Provisional designation | 2005 PE17 |
| Orbit class | Main-belt Asteroid |
| Absolute magnitude (H) | 16.05 |
| Orbital period | 5.38 years |
| Semi-major axis | 3.07 au |
| Perihelion – aphelion | 2.84 – 3.30 au |
| Eccentricity | 0.0759 |
| Inclination | 11.7° |
| Closest distance between its orbit and Earth's (MOID) | 1.83 au |
Data: NASA/JPL Small-Body Database and the IAU Minor Planet Center.