(21423) Credo Main-belt Asteroid
Discovered on 24 March 1998 by LINEAR at Socorro.
Timothy Frank Credo (b. 1987) is a finalist in the 2005 Intel Science Talent Search, a science competition for high school seniors, for his engineering project. He attends the Illinois Mathematics and Science Academy, Aurora, Illinois.Naming citation (20050224/MPCPages.arc), IAU / Minor Planet Center, via NASA/JPL
Where Credo is today
Seen from above the solar system on 2026-10-14: Credo is 2.48 au from the Sun and 1.95 au from Earth. Computed from JPL's orbital elements.
Facts
| Number | 21423 |
| Provisional designation | 1998 FJ79 |
| Orbit class | Main-belt Asteroid |
| Diameter | 2.34 km (#16,537 largest of 17,440 named asteroids with a measured size) |
| Albedo | 0.426 |
| Absolute magnitude (H) | 15.12 |
| Orbital period | 3.75 years |
| Semi-major axis | 2.42 au |
| Perihelion – aphelion | 2.28 – 2.55 au |
| Eccentricity | 0.0554 |
| Inclination | 7.30° |
| Closest distance between its orbit and Earth's (MOID) | 1.27 au |
Data: NASA/JPL Small-Body Database and the IAU Minor Planet Center.
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