(4411) Kochibunkyo Main-belt Asteroid
Discovered on 3 January 1990 by T. Seki at Geisei.
Where Kochibunkyo is today
Seen from above the solar system on 2026-10-14: Kochibunkyo is 2.35 au from the Sun and 2.43 au from Earth. Computed from JPL's orbital elements.
Facts
| Number | 4411 |
| Provisional designation | 1990 AF |
| Orbit class | Main-belt Asteroid |
| Diameter | 4.43 km (#11,774 largest of 17,440 named asteroids with a measured size) |
| Albedo | 0.271 |
| Rotation period | 2.70 hours |
| Absolute magnitude (H) | 14.1 |
| Orbital period | 3.19 years |
| Semi-major axis | 2.17 au |
| Perihelion – aphelion | 1.97 – 2.37 au |
| Eccentricity | 0.0923 |
| Inclination | 2.26° |
| Closest distance between its orbit and Earth's (MOID) | 0.984 au |
Data: NASA/JPL Small-Body Database and the IAU Minor Planet Center.