(9589) Deridder Main-belt Asteroid
Discovered on 21 November 1990 by E. W. Elst at La Silla.
Remi Adolph De Ridder (1843-1930) was a professor of law at Ghent University. In 1881 he was appointed by the government to membership in the School Commission and denounced the monopoly of the clergy in the school system.Naming citation (20030501/MPCPages.arc), IAU / Minor Planet Center, via NASA/JPL
Where Deridder is today
Seen from above the solar system on 2026-10-14: Deridder is 2.73 au from the Sun and 3.02 au from Earth. Computed from JPL's orbital elements.
Facts
| Number | 9589 |
| Provisional designation | 1990 WU5 |
| Orbit class | Main-belt Asteroid |
| Diameter | 3.34 km (#14,371 largest of 17,440 named asteroids with a measured size) |
| Albedo | 0.331 |
| Absolute magnitude (H) | 14.5 |
| Orbital period | 4.18 years |
| Semi-major axis | 2.60 au |
| Perihelion – aphelion | 2.45 – 2.74 au |
| Eccentricity | 0.0551 |
| Inclination | 4.16° |
| Closest distance between its orbit and Earth's (MOID) | 1.47 au |
Data: NASA/JPL Small-Body Database and the IAU Minor Planet Center.
Also named after someone called Remi
All asteroids named after someone called Remi
Also discovered on 21 November 1990
- (4719) Burnaby
- (6247) Amanogawa
- (8165) Gnadig
- (8503) Masakatsu
- (10326) Kuragano
- (10327) Batens
- (12278) Kisohinoki
- (30835) Waterloo
- (48448) Tokuda
More named asteroids discovered by E. W. Elst
- (3631) Sigyn
- (3784) Chopin
- (3870) Mayre
- (3903) Kliment Ohridski
- (3910) Liszt
- (3912) Troja
- (3918) Brel
- (4038) Kristina
- (4226) Damiaan
- (4342) Freud
- (4344) Buxtehude
- (4345) Rachmaninoff
← (9588) Quesnay · (9590) Hyria →