(9705) Drummen Main-belt Asteroid
Discovered on 16 October 1977 by van Houten, C. J., van Houten-Groeneveld, I., Gehrels, T. at Palomar.
Since 1975, Mat Drummen (b. 1945) has been director of “de Koepel”, the Dutch center for dissemination of information on astronomy, space science and meteorology. He is author of the annual Sterrengids and coeditor of the Dutch popular journal Zenit. The name was suggested by C. de Jager.Naming citation (20001111/MPCPages.arc), IAU / Minor Planet Center, via NASA/JPL
Where Drummen is today
Seen from above the solar system on 2026-10-14: Drummen is 2.92 au from the Sun and 3.23 au from Earth. Computed from JPL's orbital elements.
Facts
| Number | 9705 |
| Provisional designation | 3137 T-3 |
| Orbit class | Main-belt Asteroid |
| Diameter | 9.34 km (#5,523 largest of 17,440 named asteroids with a measured size) |
| Albedo | 0.108 |
| Absolute magnitude (H) | 13.3 |
| Orbital period | 5.32 years |
| Semi-major axis | 3.05 au |
| Perihelion – aphelion | 2.65 – 3.44 au |
| Eccentricity | 0.130 |
| Inclination | 10.7° |
| Closest distance between its orbit and Earth's (MOID) | 1.66 au |
Data: NASA/JPL Small-Body Database and the IAU Minor Planet Center.
Also named after someone called Mat
All asteroids named after someone called Mat
Also discovered on 16 October 1977
- (3798) de Jager
- (3936) Elst
- (4044) Erikhog
- (4108) Rakos
- (4722) Agelaos
- (4753) Phidias
- (4754) Panthoos
- (5610) Balster
- (5699) Munch
- (5700) Homerus
- (5984) Lysippus
- (6055) Brunelleschi