(12653) van der Klis Main-belt Asteroid
Discovered on 11 October 1977 by van Houten, C. J., van Houten-Groeneveld, I., Gehrels, T. at Palomar.
Michiel van der Klis (b. 1953) is a Dutch astronomer and expert on the properties of neutron stars and black holes. He discovered quasi-periodic oscillations in X-ray binaries. He is the former Director of the Anton Pannekoek Institute in Amsterdam, and the winner of the Bruno Rossi prize (1987) and the Spinoza award (2004).Naming citation (MPC batch dated 2018-10-26), IAU / Minor Planet Center, via NASA/JPL
Where van der Klis is today
Seen from above the solar system on 2026-10-14: van der Klis is 2.43 au from the Sun and 3.40 au from Earth. Computed from JPL's orbital elements.
Facts
| Number | 12653 |
| Provisional designation | 2664 T-3 |
| Orbit class | Main-belt Asteroid |
| Diameter | 3.94 km (#12,884 largest of 17,440 named asteroids with a measured size) |
| Albedo | 0.0540 |
| Absolute magnitude (H) | 16.0 |
| Orbital period | 3.66 years |
| Semi-major axis | 2.38 au |
| Perihelion – aphelion | 2.05 – 2.70 au |
| Eccentricity | 0.138 |
| Inclination | 2.46° |
| Closest distance between its orbit and Earth's (MOID) | 1.06 au |
Data: NASA/JPL Small-Body Database and the IAU Minor Planet Center.