(21326) Nitta-machi Main-belt Asteroid
Discovered on 8 January 1997 by T. Kobayashi at Oizumi.
Nitta-machi was a town with a population of 29,000 in county Nitta-Gun county, in the southeastern part of Gunma prefecture. In 2005, the town merged with Ota city, Ojima town and Yabuzuka-Honmachi town.Naming citation (MPC batch dated 2014-10-08), IAU / Minor Planet Center, via NASA/JPL
Where Nitta-machi is today
Seen from above the solar system on 2026-10-14: Nitta-machi is 2.79 au from the Sun and 3.73 au from Earth. Computed from JPL's orbital elements.
Facts
| Number | 21326 |
| Provisional designation | 1997 AW6 |
| Orbit class | Main-belt Asteroid |
| Diameter | 3.49 km (#13,989 largest of 17,440 named asteroids with a measured size) |
| Albedo | 0.364 |
| Absolute magnitude (H) | 14.35 |
| Orbital period | 4.15 years |
| Semi-major axis | 2.58 au |
| Perihelion – aphelion | 2.33 – 2.83 au |
| Eccentricity | 0.0974 |
| Inclination | 4.45° |
| Closest distance between its orbit and Earth's (MOID) | 1.32 au |
Data: NASA/JPL Small-Body Database and the IAU Minor Planet Center.