(56957) Seohideaki Main-belt Asteroid
Discovered on 24 September 2000 by BATTeRS at Bisei SG Center.
Hideaki Seo (b. 1932) was the governor of Sundai Gakuen high school. In 1966, he established a public astronomical lecture series where astronomers introduced current topics on astronomy and contributed to the promotion of astronomical education and information.Naming citation (20111210/MPCPages.arc), IAU / Minor Planet Center, via NASA/JPL
Where Seohideaki is today
Seen from above the solar system on 2026-10-14: Seohideaki is 2.60 au from the Sun and 3.54 au from Earth. Computed from JPL's orbital elements.
Facts
| Number | 56957 |
| Provisional designation | 2000 SY20 |
| Orbit class | Main-belt Asteroid |
| Absolute magnitude (H) | 13.87 |
| Orbital period | 4.65 years |
| Semi-major axis | 2.79 au |
| Perihelion – aphelion | 2.56 – 3.01 au |
| Eccentricity | 0.0809 |
| Inclination | 12.0° |
| Closest distance between its orbit and Earth's (MOID) | 1.57 au |
Data: NASA/JPL Small-Body Database and the IAU Minor Planet Center.
Also named after someone called Hideaki
All asteroids named after someone called Hideaki
Also discovered on 24 September 2000
- (19023) Varela
- (19025) Arthurpetron
- (19029) Briede
- (19808) Elainemccall
- (19809) Nancyowen
- (19810) Partridge
- (19811) Kimperkins
- (19813) Ericsands
- (19815) Marshasega
- (19816) Wayneseyfert
- (19817) Larashelton
- (19818) Shotwell