(57140) Gaddi Main-belt Asteroid
Discovered on 15 August 2001 by Tesi, L., Boattini, A. at San Marcello.
Riccardo Gaddi (b. 1966) is a very active amateur astronomer and popular expositor. Since 1995 he has collaborated with the San Marcello Observatory.Naming citation (20080122/MPCPages.arc), IAU / Minor Planet Center, via NASA/JPL
Where Gaddi is today
Seen from above the solar system on 2026-10-14: Gaddi is 2.87 au from the Sun and 3.85 au from Earth. Computed from JPL's orbital elements.
Facts
| Number | 57140 |
| Provisional designation | 2001 PG29 |
| Orbit class | Main-belt Asteroid |
| Diameter | 1.66 km (#17,295 largest of 17,440 named asteroids with a measured size) |
| Albedo | 0.338 |
| Absolute magnitude (H) | 15.98 |
| Orbital period | 3.79 years |
| Semi-major axis | 2.43 au |
| Perihelion – aphelion | 1.98 – 2.88 au |
| Eccentricity | 0.184 |
| Inclination | 2.98° |
| Closest distance between its orbit and Earth's (MOID) | 0.985 au |
Data: NASA/JPL Small-Body Database and the IAU Minor Planet Center.
Also named after someone called Riccardo
All asteroids named after someone called Riccardo