(2005) Hencke Main-belt Asteroid
Discovered on 2 September 1973 by P. Wild at Zimmerwald.
Where Hencke is today
Seen from above the solar system on 2026-10-14: Hencke is 2.99 au from the Sun and 3.97 au from Earth. Computed from JPL's orbital elements.
Facts
| Number | 2005 |
| Provisional designation | 1973 RA |
| Orbit class | Main-belt Asteroid |
| Diameter | 9.37 km (#5,500 largest of 17,440 named asteroids with a measured size) |
| Albedo | 0.265 |
| Rotation period | 10.2 hours |
| Absolute magnitude (H) | 12.41 |
| Orbital period | 4.24 years |
| Semi-major axis | 2.62 au |
| Perihelion – aphelion | 2.18 – 3.06 au |
| Eccentricity | 0.167 |
| Inclination | 12.2° |
| Closest distance between its orbit and Earth's (MOID) | 1.22 au |
Data: NASA/JPL Small-Body Database and the IAU Minor Planet Center.