(3371) Giacconi Main-belt Asteroid
Discovered on 14 September 1955 by Indiana University at Brooklyn.
Where Giacconi is today
Seen from above the solar system on 2026-10-14: Giacconi is 2.71 au from the Sun and 3.45 au from Earth. Computed from JPL's orbital elements.
Facts
| Number | 3371 |
| Provisional designation | 1955 RZ |
| Orbit class | Main-belt Asteroid |
| Diameter | 11.0 km (#4,584 largest of 17,440 named asteroids with a measured size) |
| Albedo | 0.258 |
| Spectral type | Sq |
| Absolute magnitude (H) | 12.26 |
| Orbital period | 4.53 years |
| Semi-major axis | 2.74 au |
| Perihelion – aphelion | 2.70 – 2.78 au |
| Eccentricity | 0.0150 |
| Inclination | 9.68° |
| Closest distance between its orbit and Earth's (MOID) | 1.68 au |
Data: NASA/JPL Small-Body Database and the IAU Minor Planet Center.