(7420) Buffon Main-belt Asteroid
Discovered on 4 September 1991 by E. W. Elst at La Silla.
Where Buffon is today
Seen from above the solar system on 2026-10-14: Buffon is 2.40 au from the Sun and 1.75 au from Earth. Computed from JPL's orbital elements.
Facts
| Number | 7420 |
| Provisional designation | 1991 RP11 |
| Orbit class | Main-belt Asteroid |
| Diameter | 6.27 km (#8,553 largest of 17,440 named asteroids with a measured size) |
| Albedo | 0.0630 |
| Absolute magnitude (H) | 14.91 |
| Orbital period | 3.81 years |
| Semi-major axis | 2.44 au |
| Perihelion – aphelion | 2.07 – 2.81 au |
| Eccentricity | 0.152 |
| Inclination | 1.41° |
| Closest distance between its orbit and Earth's (MOID) | 1.05 au |
Data: NASA/JPL Small-Body Database and the IAU Minor Planet Center.
Also discovered on 4 September 1991
- (6789) Milkey
- (8370) Vanlindt
- (8515) Corvan
- (9346) Fernandel
- (9594) Garstang
- (10784) Noailles
- (10785) Dejaiffe
- (11059) Nulliusinverba
- (12301) Eotvos
- (13533) Junili
- (13534) Alain-Fournier
- (21073) Darksky