(1543) Bourgeois Main-belt Asteroid
Discovered on 21 September 1941 by E. Delporte at Uccle.
Where Bourgeois is today
Seen from above the solar system on 2026-10-14: Bourgeois is 1.78 au from the Sun and 1.84 au from Earth. Computed from JPL's orbital elements.
Facts
| Number | 1543 |
| Provisional designation | 1941 SJ |
| Orbit class | Main-belt Asteroid |
| Diameter | 12.0 km (#4,088 largest of 17,440 named asteroids with a measured size) |
| Albedo | 0.214 |
| Rotation period | 29.6 hours |
| Absolute magnitude (H) | 12.05 |
| Orbital period | 4.27 years |
| Semi-major axis | 2.63 au |
| Perihelion – aphelion | 1.78 – 3.49 au |
| Eccentricity | 0.325 |
| Inclination | 11.0° |
| Closest distance between its orbit and Earth's (MOID) | 0.768 au |
Data: NASA/JPL Small-Body Database and the IAU Minor Planet Center.