(21641) Tiffanyko Main-belt Asteroid
Discovered on 14 July 1999 by LINEAR at Socorro.
Tiffany Sain-Yee Ko (b. 1988) was awarded first place in the 2005 Intel International Science and Engineering Fair for her zoology project. She attends the Terre Haute South Vigo High School, Terre Haute, Indiana, U.S.A.Naming citation (20050822/MPCPages.arc), IAU / Minor Planet Center, via NASA/JPL
Where Tiffanyko is today
Seen from above the solar system on 2026-10-14: Tiffanyko is 2.52 au from the Sun and 1.78 au from Earth. Computed from JPL's orbital elements.
Facts
| Number | 21641 |
| Provisional designation | 1999 NC40 |
| Orbit class | Main-belt Asteroid |
| Diameter | 3.04 km (#15,114 largest of 17,440 named asteroids with a measured size) |
| Albedo | 0.209 |
| Absolute magnitude (H) | 14.92 |
| Orbital period | 4.47 years |
| Semi-major axis | 2.71 au |
| Perihelion – aphelion | 2.46 – 2.96 au |
| Eccentricity | 0.0919 |
| Inclination | 4.84° |
| Closest distance between its orbit and Earth's (MOID) | 1.47 au |
Data: NASA/JPL Small-Body Database and the IAU Minor Planet Center.
Also named after someone called Tiffany
- (12075) Legg
- (12087) Tiffanylin
- (12601) Tiffanyswann
- (12988) Tiffanykapler
- (30330) Tiffanysun
- (158472) Tiffanyfinley
All asteroids named after someone called Tiffany
Also discovered on 14 July 1999
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- (16062) Buncher
- (17169) Tatarinov
- (17170) Vsevustinov
- (18823) Zachozer
- (18824) Graves
- (18825) Alicechai
- (18826) Leifer
- (18830) Pothier
- (19589) Kirkland