(2409) Chapman Main-belt Asteroid
Discovered on 17 October 1979 by E. Bowell at Anderson Mesa.
Named in honor of Clark R. Chapman, planetary astronomer at the Planetary Science Institute in Tucson. He has made outstanding contributions to our understanding of asteroid compositions and physical processes, particularly surface mineralogical identification, taxonomy and collisional evolution.Naming citation (MPC 6209), IAU / Minor Planet Center, via NASA/JPL
👶 Chapman as a baby name🐶 Chapman as a dog name
Where Chapman is today
Seen from above the solar system on 2026-10-14: Chapman is 2.12 au from the Sun and 2.67 au from Earth. Computed from JPL's orbital elements.
Facts
| Number | 2409 |
| Provisional designation | 1979 UG |
| Orbit class | Main-belt Asteroid |
| Diameter | 8.70 km (#5,992 largest of 17,440 named asteroids with a measured size) |
| Albedo | 0.213 |
| Rotation period | 3.15 hours |
| Spectral type | S |
| Absolute magnitude (H) | 12.89 |
| Orbital period | 3.41 years |
| Semi-major axis | 2.27 au |
| Perihelion – aphelion | 1.83 – 2.70 au |
| Eccentricity | 0.192 |
| Inclination | 3.51° |
| Closest distance between its orbit and Earth's (MOID) | 0.825 au |
Data: NASA/JPL Small-Body Database and the IAU Minor Planet Center.
Also named after someone called Clark
All asteroids named after someone called Clark