(23628) Ichimura Main-belt Asteroid
Discovered on 8 December 1996 by N. Sato at Chichibu.
Yoshimi Ichimura (b. 1952) is an active Japanese amateur astronomer and high-school teacher. He discovered comet C/1987 W1 (Ichimura), as well as the supernovae 2005lx, 2007ss, 2008A and 2008hi.Naming citation (20090607/MPCPages.arc), IAU / Minor Planet Center, via NASA/JPL
Where Ichimura is today
Seen from above the solar system on 2026-10-14: Ichimura is 2.33 au from the Sun and 2.37 au from Earth. Computed from JPL's orbital elements.
Facts
| Number | 23628 |
| Provisional designation | 1996 XZ31 |
| Orbit class | Main-belt Asteroid |
| Diameter | 2.40 km (#16,448 largest of 17,440 named asteroids with a measured size) |
| Albedo | 0.404 |
| Absolute magnitude (H) | 15.08 |
| Orbital period | 3.31 years |
| Semi-major axis | 2.22 au |
| Perihelion – aphelion | 2.02 – 2.42 au |
| Eccentricity | 0.0911 |
| Inclination | 7.12° |
| Closest distance between its orbit and Earth's (MOID) | 1.01 au |
Data: NASA/JPL Small-Body Database and the IAU Minor Planet Center.