(12262) Nishio Main-belt Asteroid
Discovered on 21 October 1989 by Endate, K., Watanabe, K. at Kitami.
Tomoaki Nishio (b. 1963) was an editor of Gekkan Tenmon Guide, the Japanese monthly astronomical magazine. Currently he is editor-in-chief of a magazine for ceramists.Naming citation (20030910/MPCPages.arc), IAU / Minor Planet Center, via NASA/JPL
Where Nishio is today
Seen from above the solar system on 2026-10-14: Nishio is 2.42 au from the Sun and 1.43 au from Earth. Computed from JPL's orbital elements.
Facts
| Number | 12262 |
| Provisional designation | 1989 UL |
| Orbit class | Main-belt Asteroid |
| Diameter | 4.61 km (#11,412 largest of 17,440 named asteroids with a measured size) |
| Albedo | 0.524 |
| Absolute magnitude (H) | 13.4 |
| Orbital period | 4.63 years |
| Semi-major axis | 2.78 au |
| Perihelion – aphelion | 2.40 – 3.16 au |
| Eccentricity | 0.137 |
| Inclination | 5.44° |
| Closest distance between its orbit and Earth's (MOID) | 1.41 au |
Data: NASA/JPL Small-Body Database and the IAU Minor Planet Center.