(5351) Diderot Main-belt Asteroid
Discovered on 26 September 1989 by E. W. Elst at La Silla.
Where Diderot is today
Seen from above the solar system on 2026-10-14: Diderot is 2.42 au from the Sun and 2.14 au from Earth. Computed from JPL's orbital elements.
Facts
| Number | 5351 |
| Provisional designation | 1989 SG5 |
| Orbit class | Main-belt Asteroid |
| Diameter | 3.66 km (#13,543 largest of 17,440 named asteroids with a measured size) |
| Albedo | 0.831 |
| Rotation period | 9.98 hours |
| Absolute magnitude (H) | 13.51 |
| Orbital period | 3.78 years |
| Semi-major axis | 2.43 au |
| Perihelion – aphelion | 2.08 – 2.77 au |
| Eccentricity | 0.142 |
| Inclination | 5.59° |
| Closest distance between its orbit and Earth's (MOID) | 1.08 au |
Data: NASA/JPL Small-Body Database and the IAU Minor Planet Center.
Also discovered on 26 September 1989
- (4798) Mercator
- (5873) Archilochos
- (6240) Lucretius Carus
- (6777) Balakirev
- (6826) Lavoisier
- (7056) Kierkegaard
- (7647) Etrepigny
- (7934) Sinatra
- (8488) d'Argens
- (8649) Juglans
- (8834) Anacardium
- (8835) Annona