(5688) Kleewyck Main-belt Asteroid
Discovered on 12 January 1991 by E. F. Helin at Palomar.
Where Kleewyck is today
Seen from above the solar system on 2026-10-14: Kleewyck is 2.87 au from the Sun and 3.55 au from Earth. Computed from JPL's orbital elements.
Facts
| Number | 5688 |
| Provisional designation | 1991 AD2 |
| Orbit class | Main-belt Asteroid |
| Diameter | 8.09 km (#6,484 largest of 17,440 named asteroids with a measured size) |
| Albedo | 0.170 |
| Absolute magnitude (H) | 13.29 |
| Orbital period | 4.23 years |
| Semi-major axis | 2.62 au |
| Perihelion – aphelion | 2.19 – 3.04 au |
| Eccentricity | 0.161 |
| Inclination | 4.03° |
| Closest distance between its orbit and Earth's (MOID) | 1.20 au |
Data: NASA/JPL Small-Body Database and the IAU Minor Planet Center.