(21327) Yabuzuka Main-belt Asteroid
Discovered on 11 January 1997 by T. Kobayashi at Oizumi.
Yabuzuka, the abbreviated name for Yabuzuka-Honmachi town, in Nitta-Gun county, in the southeastern part of Gunma prefecture, had a population of 19,000. In 2005 the town became part of new Ota city, when it merged with Ota city, Ojima town and Nitta town.Naming citation (MPC batch dated 2014-10-08), IAU / Minor Planet Center, via NASA/JPL
Where Yabuzuka is today
Seen from above the solar system on 2026-10-14: Yabuzuka is 2.22 au from the Sun and 2.16 au from Earth. Computed from JPL's orbital elements.
Facts
| Number | 21327 |
| Provisional designation | 1997 AJ13 |
| Orbit class | Main-belt Asteroid |
| Diameter | 2.51 km (#16,238 largest of 17,440 named asteroids with a measured size) |
| Albedo | 0.404 |
| Absolute magnitude (H) | 14.46 |
| Orbital period | 3.75 years |
| Semi-major axis | 2.41 au |
| Perihelion – aphelion | 2.20 – 2.63 au |
| Eccentricity | 0.0880 |
| Inclination | 8.20° |
| Closest distance between its orbit and Earth's (MOID) | 1.23 au |
Data: NASA/JPL Small-Body Database and the IAU Minor Planet Center.