(16449) Kigoyama Main-belt Asteroid
Discovered on 29 September 1989 by Fujii, T., Watanabe, K. at Kitami.
The 546-m Mount Kigoyama is located to the southeast of Kanazawa, Iahikawa prefecture. At its summit a planetarium and observatory are open for the public, and there is a display of the history of Japanese space development and the International Space Station.Naming citation (20070601/MPCPages.arc), IAU / Minor Planet Center, via NASA/JPL
Where Kigoyama is today
Seen from above the solar system on 2026-10-14: Kigoyama is 3.72 au from the Sun and 4.68 au from Earth. Computed from JPL's orbital elements.
Facts
| Number | 16449 |
| Provisional designation | 1989 SO |
| Orbit class | Main-belt Asteroid |
| Diameter | 16.2 km (#2,846 largest of 17,440 named asteroids with a measured size) |
| Albedo | 0.0890 |
| Absolute magnitude (H) | 12.77 |
| Orbital period | 5.66 years |
| Semi-major axis | 3.18 au |
| Perihelion – aphelion | 2.63 – 3.73 au |
| Eccentricity | 0.173 |
| Inclination | 4.89° |
| Closest distance between its orbit and Earth's (MOID) | 1.64 au |
Data: NASA/JPL Small-Body Database and the IAU Minor Planet Center.