(2016) Heinemann Main-belt Asteroid
Discovered on 18 September 1938 by A. Bohrmann at Heidelberg.
Where Heinemann is today
Seen from above the solar system on 2026-10-14: Heinemann is 2.87 au from the Sun and 3.16 au from Earth. Computed from JPL's orbital elements.
Facts
| Number | 2016 |
| Provisional designation | 1938 SE |
| Orbit class | Main-belt Asteroid |
| Diameter | 22.4 km (#1,917 largest of 17,440 named asteroids with a measured size) |
| Albedo | 0.0580 |
| Rotation period | 23.0 hours |
| Absolute magnitude (H) | 11.98 |
| Orbital period | 5.54 years |
| Semi-major axis | 3.13 au |
| Perihelion – aphelion | 2.54 – 3.73 au |
| Eccentricity | 0.190 |
| Inclination | 0.917° |
| Closest distance between its orbit and Earth's (MOID) | 1.53 au |
Data: NASA/JPL Small-Body Database and the IAU Minor Planet Center.