(2229) Mezzarco Main-belt Asteroid
Discovered on 7 September 1977 by P. Wild at Zimmerwald.
Where Mezzarco is today
Seen from above the solar system on 2026-10-14: Mezzarco is 2.53 au from the Sun and 1.63 au from Earth. Computed from JPL's orbital elements.
Facts
| Number | 2229 |
| Provisional designation | 1977 RO |
| Orbit class | Main-belt Asteroid |
| Diameter | 8.84 km (#5,877 largest of 17,440 named asteroids with a measured size) |
| Albedo | 0.130 |
| Rotation period | 10.2 hours |
| Absolute magnitude (H) | 13.12 |
| Orbital period | 4.42 years |
| Semi-major axis | 2.69 au |
| Perihelion – aphelion | 1.98 – 3.41 au |
| Eccentricity | 0.264 |
| Inclination | 12.7° |
| Closest distance between its orbit and Earth's (MOID) | 0.979 au |
Data: NASA/JPL Small-Body Database and the IAU Minor Planet Center.