(18169) Amaldi Main-belt Asteroid
Discovered on 20 August 2000 by V. S. Casulli at Colleverde.
The nuclear physicist Edoardo Amaldi (1908-1989) was part of the team of Enrico Fermi and contributed to the completion of the first particle accelerator in Italy.Naming citation (20120406/MPCPages.arc), IAU / Minor Planet Center, via NASA/JPL
Where Amaldi is today
Seen from above the solar system on 2026-10-14: Amaldi is 3.62 au from the Sun and 4.37 au from Earth. Computed from JPL's orbital elements.
Facts
| Number | 18169 |
| Provisional designation | 2000 QF |
| Orbit class | Main-belt Asteroid |
| Diameter | 23.3 km (#1,830 largest of 17,440 named asteroids with a measured size) |
| Albedo | 0.0330 |
| Rotation period | 34.1 hours |
| Absolute magnitude (H) | 12.77 |
| Orbital period | 5.61 years |
| Semi-major axis | 3.16 au |
| Perihelion – aphelion | 2.66 – 3.65 au |
| Eccentricity | 0.156 |
| Inclination | 10.1° |
| Closest distance between its orbit and Earth's (MOID) | 1.68 au |
Data: NASA/JPL Small-Body Database and the IAU Minor Planet Center.
Also named after someone called Edoardo
All asteroids named after someone called Edoardo