(4985) Fitzsimmons Outer Main-belt Asteroid
Discovered on 23 August 1979 by C.-I. Lagerkvist at La Silla.
Where Fitzsimmons is today
Seen from above the solar system on 2026-10-14: Fitzsimmons is 2.84 au from the Sun and 1.88 au from Earth. Computed from JPL's orbital elements.
Facts
| Number | 4985 |
| Provisional designation | 1979 QK4 |
| Orbit class | Outer Main-belt Asteroid |
| Diameter | 11.8 km (#4,153 largest of 17,440 named asteroids with a measured size) |
| Albedo | 0.0870 |
| Rotation period | 9.25 hours |
| Absolute magnitude (H) | 13.18 |
| Orbital period | 5.85 years |
| Semi-major axis | 3.25 au |
| Perihelion – aphelion | 2.79 – 3.70 au |
| Eccentricity | 0.140 |
| Inclination | 0.798° |
| Closest distance between its orbit and Earth's (MOID) | 1.80 au |
Data: NASA/JPL Small-Body Database and the IAU Minor Planet Center.