(21427) Ryanharrison Main-belt Asteroid
Discovered on 31 March 1998 by LINEAR at Socorro.
Ryan Marques Harrison (b. 1987) is a finalist in the 2005 Intel Science Talent Search, a science competition for high school seniors, for his bioinformatics and genomics project. He attends the Baltimore Polytechnic Institute, Baltimore, Maryland.Naming citation (20050224/MPCPages.arc), IAU / Minor Planet Center, via NASA/JPL
Where Ryanharrison is today
Seen from above the solar system on 2026-10-14: Ryanharrison is 1.91 au from the Sun and 1.23 au from Earth. Computed from JPL's orbital elements.
Facts
| Number | 21427 |
| Provisional designation | 1998 FK97 |
| Orbit class | Main-belt Asteroid |
| Absolute magnitude (H) | 15.09 |
| Orbital period | 3.31 years |
| Semi-major axis | 2.22 au |
| Perihelion – aphelion | 1.83 – 2.61 au |
| Eccentricity | 0.174 |
| Inclination | 4.13° |
| Closest distance between its orbit and Earth's (MOID) | 0.835 au |
Data: NASA/JPL Small-Body Database and the IAU Minor Planet Center.
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