(21718) Cheonghapark Main-belt Asteroid
Discovered on 9 September 1999 by LINEAR at Socorro.
Cheong Ha Park (b. 1987) was awarded second place in the 2005 Intel International Science and Engineering Fair for her microbiology team project. She attends the Chonnam Science High School, Naju, Chonnam, South Korea.Naming citation (20050822/MPCPages.arc), IAU / Minor Planet Center, via NASA/JPL
Where Cheonghapark is today
Seen from above the solar system on 2026-10-14: Cheonghapark is 3.02 au from the Sun and 4.01 au from Earth. Computed from JPL's orbital elements.
Facts
| Number | 21718 |
| Provisional designation | 1999 RO115 |
| Orbit class | Main-belt Asteroid |
| Diameter | 3.85 km (#13,109 largest of 17,440 named asteroids with a measured size) |
| Albedo | 0.207 |
| Absolute magnitude (H) | 14.76 |
| Orbital period | 4.11 years |
| Semi-major axis | 2.56 au |
| Perihelion – aphelion | 2.09 – 3.03 au |
| Eccentricity | 0.183 |
| Inclination | 2.62° |
| Closest distance between its orbit and Earth's (MOID) | 1.10 au |
Data: NASA/JPL Small-Body Database and the IAU Minor Planet Center.
Also discovered on 9 September 1999
- (12127) Mamiya
- (12130) Mousa
- (12589) Davidanand
- (12590) Ballantine
- (12591) Bergey
- (12592) Brianchen
- (12593) Shashlov
- (12594) Sidorclare
- (12595) Amandashaw
- (12596) Shukla
- (12597) Williamdaniel
- (12598) Sierra
More named asteroids discovered by LINEAR
- (7904) Morrow
- (8744) Cilla
- (8745) Delaney
- (8954) Baral
- (9126) Samcoulson
- (9243) Alag
- (9454) Ardeishar
- (9458) Beaumont
- (9459) Gracecai
- (9461) Cotingkeh
- (9463) Criscione
- (9465) Fergusonsam
← (21717) Pang · (21719) Pasricha →