(8011) Saijokeiichi Main-belt Asteroid
Discovered on 29 November 1989 by Endate, K., Watanabe, K. at Kitami.
Named in honor of Keiichi Saijo (b. 1949), senior curator of the astronomy section of National Science Museum, Tokyo, known for observational research on eclipsing variables, long-period variables and for public education in astronomy. He has been chair of the Variable Star Observers League in Japan since its founding and secretary of the Association of Public Astronomical Observatories. He is also a distinguished fellow of Saji Observatory. Name proposed by the discoverers following a suggestion by Y. Yamada.Naming citation (19990728/MPCPages.arc), IAU / Minor Planet Center, via NASA/JPL
Where Saijokeiichi is today
Seen from above the solar system on 2026-10-14: Saijokeiichi is 2.90 au from the Sun and 2.52 au from Earth. Computed from JPL's orbital elements.
Facts
| Number | 8011 |
| Provisional designation | 1989 WG7 |
| Orbit class | Main-belt Asteroid |
| Diameter | 7.01 km (#7,634 largest of 17,440 named asteroids with a measured size) |
| Albedo | 0.0820 |
| Rotation period | 4.50 hours |
| Absolute magnitude (H) | 14.36 |
| Orbital period | 4.24 years |
| Semi-major axis | 2.62 au |
| Perihelion – aphelion | 2.21 – 3.03 au |
| Eccentricity | 0.158 |
| Inclination | 1.65° |
| Closest distance between its orbit and Earth's (MOID) | 1.22 au |
Data: NASA/JPL Small-Body Database and the IAU Minor Planet Center.
Also discovered on 29 November 1989
- (4382) Stravinsky
- (5740) Toutoumi
- (5910) Zatopek
- (8087) Kazutaka
- (8273) Apatheia
- (15248) Hidekazu
- (15716) Narahara
- (26828) Narusawa
- (29167) Masataka