(4009) Drobyshevskij Main-belt Asteroid
Discovered on 13 March 1977 by N. S. Chernykh at Nauchnyj.
Where Drobyshevskij is today
Seen from above the solar system on 2026-10-14: Drobyshevskij is 3.13 au from the Sun and 3.97 au from Earth. Computed from JPL's orbital elements.
Facts
| Number | 4009 |
| Provisional designation | 1977 EN1 |
| Orbit class | Main-belt Asteroid |
| Diameter | 18.2 km (#2,469 largest of 17,440 named asteroids with a measured size) |
| Albedo | 0.0440 |
| Rotation period | 3.88 hours |
| Absolute magnitude (H) | 12.72 |
| Orbital period | 5.59 years |
| Semi-major axis | 3.15 au |
| Perihelion – aphelion | 2.75 – 3.55 au |
| Eccentricity | 0.128 |
| Inclination | 2.28° |
| Closest distance between its orbit and Earth's (MOID) | 1.73 au |
Data: NASA/JPL Small-Body Database and the IAU Minor Planet Center.
Also discovered on 13 March 1977
- (2293) Guernica
- (2388) Gaze
- (2508) Alupka
- (2646) Abetti
- (2792) Ponomarev
- (2966) Korsunia
- (3100) Zimmerman
- (3884) Alferov
- (5083) Irinara
- (5413) Smyslov
- (5935) Ostankino
- (8062) Okhotsymskij