(18560) Coxeter Main-belt Asteroid
Discovered on 7 March 1997 by P. G. Comba at Prescott.
Harold Scott MacDonald Coxeter (b. 1907) is an English-Canadian mathematician and former professor at the University of Toronto. He has been a prolific writer on intuitively simple geometric problems, such as the classification of polytopes and the tiling of the plane with convex polygons.Naming citation (20010309/MPCPages.arc), IAU / Minor Planet Center, via NASA/JPL
Where Coxeter is today
Seen from above the solar system on 2026-10-14: Coxeter is 2.62 au from the Sun and 3.27 au from Earth. Computed from JPL's orbital elements.
Facts
| Number | 18560 |
| Provisional designation | 1997 EO7 |
| Orbit class | Main-belt Asteroid |
| Diameter | 18.5 km (#2,422 largest of 17,440 named asteroids with a measured size) |
| Albedo | 0.0360 |
| Absolute magnitude (H) | 12.81 |
| Orbital period | 5.57 years |
| Semi-major axis | 3.14 au |
| Perihelion – aphelion | 2.54 – 3.74 au |
| Eccentricity | 0.191 |
| Inclination | 9.27° |
| Closest distance between its orbit and Earth's (MOID) | 1.53 au |
Data: NASA/JPL Small-Body Database and the IAU Minor Planet Center.
Also named after someone called Harold
- (3898) Curlewis
- (6761) Haroldconnolly
- (13327) Reitsema
- (15109) Wilber
- (15146) Halpov
- (44117) Haroldlarson
- (95980) Haroldhill
- (114096) Haroldbier
- (175203) Kingston
All asteroids named after someone called Harold
Also discovered on 7 March 1997
- (9116) Billhamilton
- (12478) Suzukiseiji
- (24916) Stelzhamer
- (29427) Oswaldthomas
- (35324) Orlandi
- (35325) Claudiaguarnieri
- (35326) Lucastrabla
- (65852) Alle
- (118235) Federico
- (129564) Christy