(1820) Lohmann Main-belt Asteroid
Discovered on 2 August 1949 by K. Reinmuth at Heidelberg.
Where Lohmann is today
Seen from above the solar system on 2026-10-14: Lohmann is 2.43 au from the Sun and 3.40 au from Earth. Computed from JPL's orbital elements.
Facts
| Number | 1820 |
| Provisional designation | 1949 PO |
| Orbit class | Main-belt Asteroid |
| Diameter | 5.35 km (#9,964 largest of 17,440 named asteroids with a measured size) |
| Albedo | 0.390 |
| Rotation period | 14.1 hours |
| Absolute magnitude (H) | 13.44 |
| Orbital period | 3.26 years |
| Semi-major axis | 2.20 au |
| Perihelion – aphelion | 1.74 – 2.66 au |
| Eccentricity | 0.210 |
| Inclination | 5.01° |
| Closest distance between its orbit and Earth's (MOID) | 0.722 au |
Data: NASA/JPL Small-Body Database and the IAU Minor Planet Center.
Also discovered on 2 August 1949
- (1682) Karel
- (2465) Wilson
- (2591) Dworetsky
- (3020) Naudts
- (3183) Franzkaiser
- (3938) Chapront
- (4001) Ptolemaeus
- (4979) Otawara
- (6260) Kelsey