(8660) Sano Outer Main-belt Asteroid
Discovered on 15 October 1990 by Endate, K., Watanabe, K. at Kitami.
Yasuo Sano (b. 1959), a staff member of the Nayoro Municipal Kihara Observatory, is the discoverer of supernova 1997ef and works as a popularizer of astronomy.Naming citation (20010804/MPCPages.arc), IAU / Minor Planet Center, via NASA/JPL
Where Sano is today
Seen from above the solar system on 2026-10-14: Sano is 3.25 au from the Sun and 2.86 au from Earth. Computed from JPL's orbital elements.
Facts
| Number | 8660 |
| Provisional designation | 1990 TM1 |
| Orbit class | Outer Main-belt Asteroid |
| Diameter | 14.3 km (#3,327 largest of 17,440 named asteroids with a measured size) |
| Albedo | 0.262 |
| Rotation period | 21.6 hours |
| Absolute magnitude (H) | 11.65 |
| Orbital period | 5.87 years |
| Semi-major axis | 3.26 au |
| Perihelion – aphelion | 3.13 – 3.38 au |
| Eccentricity | 0.0391 |
| Inclination | 6.64° |
| Closest distance between its orbit and Earth's (MOID) | 2.13 au |
Data: NASA/JPL Small-Body Database and the IAU Minor Planet Center.
Also named after someone called Yasuo
All asteroids named after someone called Yasuo
Also discovered on 15 October 1990
- (5187) Domon
- (5188) Paine
- (6905) Miyazaki
- (6964) Kunihiko
- (8274) Soejima
- (9333) Hiraimasa
- (10318) Sumaura
- (10760) Ozeki
- (12706) Tanezaki
- (14395) Tommorgan
- (16503) Ayato
- (19160) Chikayoshitomi