(6210) Hyunseop Main-belt Asteroid
Discovered on 14 January 1991 by Matsuyama, M., Watanabe, K. at Kushiro.
Seo Hyun-seop (b. 1944), a professor at Pukyung University, Korea, and also at Kyusyu University, Japan, is an amateur astronomer interested in minor planets. He was a Korean ambassador and published books on international friendship between Korea and Japan. The name was suggested by K. Hurukawa.Naming citation (20050125/MPCPages.arc), IAU / Minor Planet Center, via NASA/JPL
Where Hyunseop is today
Seen from above the solar system on 2026-10-14: Hyunseop is 2.89 au from the Sun and 3.44 au from Earth. Computed from JPL's orbital elements.
Facts
| Number | 6210 |
| Provisional designation | 1991 AX1 |
| Orbit class | Main-belt Asteroid |
| Diameter | 8.67 km (#6,006 largest of 17,440 named asteroids with a measured size) |
| Albedo | 0.235 |
| Rotation period | 2.92 hours |
| Absolute magnitude (H) | 12.73 |
| Orbital period | 4.84 years |
| Semi-major axis | 2.86 au |
| Perihelion – aphelion | 2.81 – 2.91 au |
| Eccentricity | 0.0179 |
| Inclination | 3.02° |
| Closest distance between its orbit and Earth's (MOID) | 1.82 au |
Data: NASA/JPL Small-Body Database and the IAU Minor Planet Center.