(18887) Yiliuchen Main-belt Asteroid
Discovered on 7 January 2000 by LINEAR at Socorro.
Yiliu Chen (b. 1986) was awarded third place in the 2003 Intel International Science and Engineering Fair for her microbiology project. She attends the University School of Nashville, Nashville, Tennessee, U.S.A.Naming citation (20040830/MPCPages.arc), IAU / Minor Planet Center, via NASA/JPL
Where Yiliuchen is today
Seen from above the solar system on 2026-10-14: Yiliuchen is 1.92 au from the Sun and 1.49 au from Earth. Computed from JPL's orbital elements.
Facts
| Number | 18887 |
| Provisional designation | 2000 AP181 |
| Orbit class | Main-belt Asteroid |
| Diameter | 3.55 km (#13,837 largest of 17,440 named asteroids with a measured size) |
| Albedo | 0.223 |
| Absolute magnitude (H) | 14.32 |
| Orbital period | 3.50 years |
| Semi-major axis | 2.30 au |
| Perihelion – aphelion | 1.91 – 2.69 au |
| Eccentricity | 0.169 |
| Inclination | 6.72° |
| Closest distance between its orbit and Earth's (MOID) | 0.907 au |
Data: NASA/JPL Small-Body Database and the IAU Minor Planet Center.
Also discovered on 7 January 2000
- (14701) Aizu
- (14702) Benclark
- (16197) Bluepeter
- (16198) Buzios
- (17210) Nadinemeister
- (17211) Brianfisher
- (17216) Scottstuart
- (17217) Pollner
- (23135) Pheidas
- (24385) Katcagen
- (24386) McLindon
- (24387) Trettel