(20249) Bincheng Main-belt Asteroid
Discovered on 1 March 1998 by E. W. Elst at La Silla.
Bin Cheng (b. 1995) is a Chinese planetary scientist studying the surface mechanical and geological properties of small Solar System bodies, contributing to space missions. He has developed 3D simulations of granular dynamics that improved understanding of groove formation and other geophysical processes and interactions in low-gravity regoliths.Naming citation (WGSBN Bull. 6, #11, 11), IAU / Minor Planet Center, via NASA/JPL
Where Bincheng is today
Seen from above the solar system on 2026-10-14: Bincheng is 2.30 au from the Sun and 1.74 au from Earth. Computed from JPL's orbital elements.
Facts
| Number | 20249 |
| Provisional designation | 1998 EM10 |
| Orbit class | Main-belt Asteroid |
| Rotation period | 99.2 hours |
| Absolute magnitude (H) | 15.32 |
| Orbital period | 3.42 years |
| Semi-major axis | 2.27 au |
| Perihelion – aphelion | 1.90 – 2.64 au |
| Eccentricity | 0.162 |
| Inclination | 6.46° |
| Closest distance between its orbit and Earth's (MOID) | 0.895 au |
Data: NASA/JPL Small-Body Database and the IAU Minor Planet Center.
Also discovered on 1 March 1998
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- (11363) Vives
- (11681) Ortner
- (12059) du Chatelet
- (15969) Charlesgreen
- (17770) Baume
- (17771) Elsheimer
- (18643) van Rysselberghe
- (19400) Emileclaus
- (20246) Frappa
- (20250) Burdanov
- (20251) Carminegiordano