(4976) Choukyongchol Main-belt Asteroid
Discovered on 9 August 1991 by K. Watanabe at Sapporo.
Kyong Chol Chou (b. 1929) is one of the leading astronomers in Korea. After working at NASA and the U.S. Naval Observatory, he now teaches at Kyunghee University and is active in astronomical research and popularization. The name was suggested by K. Hurukawa.Naming citation (20011130/MPCPages.arc), IAU / Minor Planet Center, via NASA/JPL
Where Choukyongchol is today
Seen from above the solar system on 2026-10-14: Choukyongchol is 3.14 au from the Sun and 4.13 au from Earth. Computed from JPL's orbital elements.
Facts
| Number | 4976 |
| Provisional designation | 1991 PM |
| Orbit class | Main-belt Asteroid |
| Diameter | 16.9 km (#2,694 largest of 17,440 named asteroids with a measured size) |
| Albedo | 0.186 |
| Rotation period | 4.42 hours |
| Absolute magnitude (H) | 11.66 |
| Orbital period | 5.24 years |
| Semi-major axis | 3.02 au |
| Perihelion – aphelion | 2.70 – 3.34 au |
| Eccentricity | 0.106 |
| Inclination | 8.64° |
| Closest distance between its orbit and Earth's (MOID) | 1.70 au |
Data: NASA/JPL Small-Body Database and the IAU Minor Planet Center.