(3645) Fabini Main-belt Asteroid
Discovered on 28 August 1981 by A. Mrkos at Klet.
Where Fabini is today
Seen from above the solar system on 2026-10-14: Fabini is 2.52 au from the Sun and 1.72 au from Earth. Computed from JPL's orbital elements.
Facts
| Number | 3645 |
| Provisional designation | 1981 QZ |
| Orbit class | Main-belt Asteroid |
| Diameter | 19.9 km (#2,212 largest of 17,440 named asteroids with a measured size) |
| Albedo | 0.0590 |
| Rotation period | 4.63 hours |
| Spectral type | C |
| Absolute magnitude (H) | 12.5 |
| Orbital period | 4.44 years |
| Semi-major axis | 2.70 au |
| Perihelion – aphelion | 2.48 – 2.92 au |
| Eccentricity | 0.0801 |
| Inclination | 7.13° |
| Closest distance between its orbit and Earth's (MOID) | 1.49 au |
Data: NASA/JPL Small-Body Database and the IAU Minor Planet Center.