(8911) Kawaguchijun Main-belt Asteroid
Discovered on 17 December 1995 by T. Kobayashi at Oizumi.
Kawaguchi Jun'ichiro (b. 1955) is project manager of the MUSES-C mission, designed to deliver the world's first sample-and-return spacecraft.Naming citation (20030501/MPCPages.arc), IAU / Minor Planet Center, via NASA/JPL
Where Kawaguchijun is today
Seen from above the solar system on 2026-10-14: Kawaguchijun is 3.17 au from the Sun and 2.23 au from Earth. Computed from JPL's orbital elements.
Facts
| Number | 8911 |
| Provisional designation | 1995 YA |
| Orbit class | Main-belt Asteroid |
| Diameter | 15.0 km (#3,138 largest of 17,440 named asteroids with a measured size) |
| Albedo | 0.0540 |
| Rotation period | 6.12 hours |
| Absolute magnitude (H) | 13.12 |
| Orbital period | 5.21 years |
| Semi-major axis | 3.01 au |
| Perihelion – aphelion | 2.83 – 3.19 au |
| Eccentricity | 0.0597 |
| Inclination | 7.49° |
| Closest distance between its orbit and Earth's (MOID) | 1.82 au |
Data: NASA/JPL Small-Body Database and the IAU Minor Planet Center.