(22490) Zigamiyama Main-belt Asteroid
Discovered on 11 April 1997 by T. Okuni at Nanyo.
Zigamiyama is a 1850-m mountain located in the western part of the Iide mountain range, in the Bandai-Asahi National Park. It is a popular area for Japanese mountain climbers.Naming citation (20110517/MPCPages.arc), IAU / Minor Planet Center, via NASA/JPL
Where Zigamiyama is today
Seen from above the solar system on 2026-10-14: Zigamiyama is 2.87 au from the Sun and 2.47 au from Earth. Computed from JPL's orbital elements.
Facts
| Number | 22490 |
| Provisional designation | 1997 GB26 |
| Orbit class | Main-belt Asteroid |
| Diameter | 3.93 km (#12,922 largest of 17,440 named asteroids with a measured size) |
| Albedo | 0.151 |
| Rotation period | 8.05 hours |
| Absolute magnitude (H) | 14.43 |
| Orbital period | 4.02 years |
| Semi-major axis | 2.53 au |
| Perihelion – aphelion | 2.19 – 2.87 au |
| Eccentricity | 0.135 |
| Inclination | 14.2° |
| Closest distance between its orbit and Earth's (MOID) | 1.24 au |
Data: NASA/JPL Small-Body Database and the IAU Minor Planet Center.
Also discovered on 11 April 1997
More named asteroids discovered by T. Okuni
- (7039) Yamagata
- (8220) Nanyou
- (8418) Mogamigawa
- (8723) Azumayama
- (8730) Iidesan
- (8747) Asahi
- (8922) Kumanodake
- (8937) Gassan
- (9110) Choukai
- (9128) Takatumuzi
- (9990) Niiyaeki
- (10405) Yoshiaki
← (22489) Yanaka · (22492) Mosig →