(363504) Belleau Main-belt Asteroid
Discovered on 18 October 2003 by Saint-Sulpice at Saint-Sulpice.
Remy Belleau (1528-1577) was a French poet and a member of the Pleiade group.Naming citation (MPC batch dated 2014-02-14), IAU / Minor Planet Center, via NASA/JPL
Where Belleau is today
Seen from above the solar system on 2026-10-14: Belleau is 2.21 au from the Sun and 1.99 au from Earth. Computed from JPL's orbital elements.
Facts
| Number | 363504 |
| Provisional designation | 2003 UA18 |
| Orbit class | Main-belt Asteroid |
| Absolute magnitude (H) | 17.65 |
| Orbital period | 3.75 years |
| Semi-major axis | 2.41 au |
| Perihelion – aphelion | 2.16 – 2.67 au |
| Eccentricity | 0.106 |
| Inclination | 5.85° |
| Closest distance between its orbit and Earth's (MOID) | 1.17 au |
Data: NASA/JPL Small-Body Database and the IAU Minor Planet Center.