(4889) Praetorius Main-belt Asteroid
Discovered on 19 October 1982 by F. Borngen at Tautenburg.
Where Praetorius is today
Seen from above the solar system on 2026-10-14: Praetorius is 2.70 au from the Sun and 1.81 au from Earth. Computed from JPL's orbital elements.
Facts
| Number | 4889 |
| Provisional designation | 1982 UW3 |
| Orbit class | Main-belt Asteroid |
| Diameter | 21.2 km (#2,062 largest of 17,440 named asteroids with a measured size) |
| Albedo | 0.0240 |
| Absolute magnitude (H) | 12.41 |
| Orbital period | 5.43 years |
| Semi-major axis | 3.09 au |
| Perihelion – aphelion | 2.47 – 3.70 au |
| Eccentricity | 0.199 |
| Inclination | 13.9° |
| Closest distance between its orbit and Earth's (MOID) | 1.54 au |
Data: NASA/JPL Small-Body Database and the IAU Minor Planet Center.