(9871) Jeon Main-belt Asteroid
Discovered on 28 February 1992 by Fujii, T., Watanabe, K. at Kitami.
Jeon San-Woon (b. 1928) is a historian of Korean astronomy and technology. He served as president of the Korean Society of History and Science. He was also a guest professor at Kyoto University in Japan and at Yonsei University in Korea.Naming citation (20040928/MPCPages.arc), IAU / Minor Planet Center, via NASA/JPL
Where Jeon is today
Seen from above the solar system on 2026-10-14: Jeon is 2.67 au from the Sun and 1.69 au from Earth. Computed from JPL's orbital elements.
Facts
| Number | 9871 |
| Provisional designation | 1992 DG1 |
| Orbit class | Main-belt Asteroid |
| Diameter | 3.76 km (#13,307 largest of 17,440 named asteroids with a measured size) |
| Albedo | 0.787 |
| Rotation period | 94.0 hours |
| Absolute magnitude (H) | 13.44 |
| Orbital period | 3.65 years |
| Semi-major axis | 2.37 au |
| Perihelion – aphelion | 2.01 – 2.73 au |
| Eccentricity | 0.151 |
| Inclination | 5.56° |
| Closest distance between its orbit and Earth's (MOID) | 1.01 au |
Data: NASA/JPL Small-Body Database and the IAU Minor Planet Center.
More named asteroids discovered by Fujii, T., Watanabe, K.
- (4645) Tentaikojo
- (4676) Uedaseiji
- (4714) Toyohiro
- (4718) Araki
- (4743) Kikuchi
- (4750) Mukai
- (4971) Hoshinohiroba
- (4975) Dohmoto
- (5180) Ohno
- (5192) Yabuki
- (5357) Sekiguchi
- (5474) Gingasen
← (9870) Maehata · (9872) Solf →