(8552) Hyoichi Main-belt Asteroid
Discovered on 20 April 1995 by A. Nakamura at Kuma Kogen.
Named in honor of Hyoichi Kohno (b. 1958), Japanese adventurer, born in Ehime prefecture, where this minor planet was discovered. Since 1980, he has boated down the Yukon River; climbed Mt. McKinley (6194 m) and Cerro Aconcagua (6959 m), the highest mountains in North and South America; walked across Patagonia; walked from Los Angeles to New York; walked from Algeria to Togo across the Sahara desert; and so on. In 1997, he became the first Japanese to walk to the North Pole alone.Naming citation (19980610/MPCPages.arc), IAU / Minor Planet Center, via NASA/JPL
Where Hyoichi is today
Seen from above the solar system on 2026-10-14: Hyoichi is 2.30 au from the Sun and 2.26 au from Earth. Computed from JPL's orbital elements.
Facts
| Number | 8552 |
| Provisional designation | 1995 HE |
| Orbit class | Main-belt Asteroid |
| Diameter | 8.91 km (#5,823 largest of 17,440 named asteroids with a measured size) |
| Albedo | 0.0560 |
| Absolute magnitude (H) | 14.29 |
| Orbital period | 4.68 years |
| Semi-major axis | 2.80 au |
| Perihelion – aphelion | 2.29 – 3.30 au |
| Eccentricity | 0.180 |
| Inclination | 4.35° |
| Closest distance between its orbit and Earth's (MOID) | 1.31 au |
Data: NASA/JPL Small-Body Database and the IAU Minor Planet Center.