(9685) Korteweg Main-belt Asteroid
Discovered on 24 September 1960 by van Houten, C. J., van Houten-Groeneveld, I., Gehrels, T. at Palomar.
Diederik Johannes Korteweg (1848-1941), professor of mathematics at the University of Amsterdam, is known in particular for the Korteweg-de Vries equation on solitary waves and for editing the complete works of Christiaan Huygens. The name was suggested by W. A. Fröger.Naming citation (20010705/MPCPages.arc), IAU / Minor Planet Center, via NASA/JPL
Where Korteweg is today
Seen from above the solar system on 2026-10-14: Korteweg is 2.13 au from the Sun and 3.07 au from Earth. Computed from JPL's orbital elements.
Facts
| Number | 9685 |
| Provisional designation | 4247 P-L |
| Orbit class | Main-belt Asteroid |
| Absolute magnitude (H) | 14.6 |
| Orbital period | 3.77 years |
| Semi-major axis | 2.42 au |
| Perihelion – aphelion | 2.10 – 2.74 au |
| Eccentricity | 0.132 |
| Inclination | 1.27° |
| Closest distance between its orbit and Earth's (MOID) | 1.10 au |
Data: NASA/JPL Small-Body Database and the IAU Minor Planet Center.
Also discovered on 24 September 1960
- (1743) Schmidt
- (1744) Harriet
- (1776) Kuiper
- (1777) Gehrels
- (1795) Woltjer
- (1808) Bellerophon
- (1809) Prometheus
- (1810) Epimetheus
- (1811) Bruwer
- (1812) Gilgamesh
- (1846) Bengt
- (1868) Thersites