(4167) Riemann Main-belt Asteroid
Discovered on 2 October 1978 by L. V. Zhuravleva at Nauchnyj.
Where Riemann is today
Seen from above the solar system on 2026-10-14: Riemann is 2.45 au from the Sun and 3.41 au from Earth. Computed from JPL's orbital elements.
Facts
| Number | 4167 |
| Provisional designation | 1978 TQ7 |
| Orbit class | Main-belt Asteroid |
| Diameter | 12.9 km (#3,744 largest of 17,440 named asteroids with a measured size) |
| Albedo | 0.202 |
| Rotation period | 4.06 hours |
| Absolute magnitude (H) | 12.16 |
| Orbital period | 4.15 years |
| Semi-major axis | 2.58 au |
| Perihelion – aphelion | 2.34 – 2.82 au |
| Eccentricity | 0.0921 |
| Inclination | 15.0° |
| Closest distance between its orbit and Earth's (MOID) | 1.37 au |
Data: NASA/JPL Small-Body Database and the IAU Minor Planet Center.
Also discovered on 2 October 1978
- (2850) Mozhaiskij
- (2979) Murmansk
- (3214) Makarenko
- (3442) Yashin
- (3547) Serov
- (4363) Sergej
- (5304) Bazhenov
- (5544) Kazakov
- (7320) Potter
- (11793) Chujkovia
- (18295) Borispetrov
- (27660) Waterwayuni