(9583) Clerke Main-belt Asteroid
Discovered on 28 April 1990 by R. H. McNaught at Siding Spring.
Agnes Mary Clerke (1842–1907) was an Irish astronomer, historian and writer. Her clear explanations of new developments in science, particularly astronomy, were widely read by both the public and working scientists alike. Her book on the new science of astronomical spectroscopy became a standard text.Naming citation (WGSBN Bull. 2, #1, 5), IAU / Minor Planet Center, via NASA/JPL
Where Clerke is today
Seen from above the solar system on 2026-10-14: Clerke is 2.29 au from the Sun and 2.92 au from Earth. Computed from JPL's orbital elements.
Facts
| Number | 9583 |
| Provisional designation | 1990 HL1 |
| Orbit class | Main-belt Asteroid |
| Rotation period | 2.64 hours |
| Absolute magnitude (H) | 14.71 |
| Orbital period | 3.71 years |
| Semi-major axis | 2.40 au |
| Perihelion – aphelion | 1.74 – 3.05 au |
| Eccentricity | 0.275 |
| Inclination | 22.1° |
| Closest distance between its orbit and Earth's (MOID) | 0.725 au |
Data: NASA/JPL Small-Body Database and the IAU Minor Planet Center.
Also named after someone called Agnes
All asteroids named after someone called Agnes