(8485) Satoru Main-belt Asteroid
Discovered on 29 March 1989 by T. Seki at Geisei.
Satoru Honda (b. 1913), some time kindergarten principal, is the widow of Minoru Honda, famed comet and nova hunter. When light pollution affected her husband's observatory at Kurashiki she spent her retirement allowance to purchase a new mountain site. The name was suggested by K. Kenmotsu and T. Sato.Naming citation (20000124/MPCPages.arc), IAU / Minor Planet Center, via NASA/JPL
Where Satoru is today
Seen from above the solar system on 2026-10-14: Satoru is 2.68 au from the Sun and 2.60 au from Earth. Computed from JPL's orbital elements.
Facts
| Number | 8485 |
| Provisional designation | 1989 FL |
| Orbit class | Main-belt Asteroid |
| Diameter | 5.84 km (#9,163 largest of 17,440 named asteroids with a measured size) |
| Albedo | 0.298 |
| Rotation period | 363 hours |
| Absolute magnitude (H) | 13.5 |
| Orbital period | 4.57 years |
| Semi-major axis | 2.75 au |
| Perihelion – aphelion | 2.31 – 3.20 au |
| Eccentricity | 0.162 |
| Inclination | 8.94° |
| Closest distance between its orbit and Earth's (MOID) | 1.32 au |
Data: NASA/JPL Small-Body Database and the IAU Minor Planet Center.