(6039) Parmenides Outer Main-belt Asteroid
Discovered on 3 September 1989 by E. W. Elst at Haute Provence.
Where Parmenides is today
Seen from above the solar system on 2026-10-14: Parmenides is 3.32 au from the Sun and 3.21 au from Earth. Computed from JPL's orbital elements.
Facts
| Number | 6039 |
| Provisional designation | 1989 RS |
| Orbit class | Outer Main-belt Asteroid |
| Diameter | 22.0 km (#1,963 largest of 17,440 named asteroids with a measured size) |
| Albedo | 0.0760 |
| Absolute magnitude (H) | 11.95 |
| Orbital period | 6.32 years |
| Semi-major axis | 3.42 au |
| Perihelion – aphelion | 3.25 – 3.58 au |
| Eccentricity | 0.0485 |
| Inclination | 13.1° |
| Closest distance between its orbit and Earth's (MOID) | 2.25 au |
Data: NASA/JPL Small-Body Database and the IAU Minor Planet Center.