(32270) Inokuchihiroo Main-belt Asteroid
Discovered on 4 August 2000 by BATTeRS at Bisei SG Center.
Hiroo Inokuchi (b. 1927) discovered the semiconductive properties in organic materials. He also contributed to the cultivation and development of research under microgravity. He is the chairman of Japan Space Forum, which manages Bisei Spaceguard Center.Naming citation (20071124/MPCPages.arc), IAU / Minor Planet Center, via NASA/JPL
Where Inokuchihiroo is today
Seen from above the solar system on 2026-10-14: Inokuchihiroo is 2.82 au from the Sun and 3.65 au from Earth. Computed from JPL's orbital elements.
Facts
| Number | 32270 |
| Provisional designation | 2000 PC4 |
| Orbit class | Main-belt Asteroid |
| Diameter | 6.36 km (#8,424 largest of 17,440 named asteroids with a measured size) |
| Albedo | 0.144 |
| Absolute magnitude (H) | 14.12 |
| Orbital period | 4.68 years |
| Semi-major axis | 2.80 au |
| Perihelion – aphelion | 2.52 – 3.08 au |
| Eccentricity | 0.0999 |
| Inclination | 6.45° |
| Closest distance between its orbit and Earth's (MOID) | 1.51 au |
Data: NASA/JPL Small-Body Database and the IAU Minor Planet Center.