(7590) Aterui Main-belt Asteroid
Discovered on 26 October 1992 by Endate, K., Watanabe, K. at Kitami.
Aterui, patriarch of the Ainu tribe in northern Japan in the late eighth century, was believed to have had a castle in the present Mizusawa City. He resisted military invasion by the central government. He was eventually compelled to surrender to the commander of the Kyoto troops and was executed near Kyoto in 801.Naming citation (20000124/MPCPages.arc), IAU / Minor Planet Center, via NASA/JPL
Where Aterui is today
Seen from above the solar system on 2026-10-14: Aterui is 2.02 au from the Sun and 2.62 au from Earth. Computed from JPL's orbital elements.
Facts
| Number | 7590 |
| Provisional designation | 1992 UP4 |
| Orbit class | Main-belt Asteroid |
| Diameter | 4.21 km (#12,237 largest of 17,440 named asteroids with a measured size) |
| Albedo | 0.398 |
| Rotation period | 5.59 hours |
| Absolute magnitude (H) | 14.19 |
| Orbital period | 3.32 years |
| Semi-major axis | 2.23 au |
| Perihelion – aphelion | 2.01 – 2.44 au |
| Eccentricity | 0.0957 |
| Inclination | 6.38° |
| Closest distance between its orbit and Earth's (MOID) | 1.03 au |
Data: NASA/JPL Small-Body Database and the IAU Minor Planet Center.
Also discovered on 26 October 1992
- (5855) Yukitsuna
- (6022) Jyuro
- (6023) Tsuyashima
- (6337) Shiota
- (6338) Isaosato
- (6460) Bassano
- (6498) Ko
- (8036) Maehara
- (8294) Takayuki
- (8295) Toshifukushima
- (8874) Showashinzan
- (10352) Kawamura