(8464) Polishook Main-belt Asteroid
Discovered on 2 March 1981 by S. J. Bus at Siding Spring.
David L. Polishook (b. 1976) is a Postdoctoral Fellow at the Massachusetts Institute of Technology. His 2010 Ph.D. thesis at Tel Aviv University explored minor-planet spin evolution and his ongoing investigations include spectral studies of minor-planet binaries and separated pairs.Naming citation (20120506/MPCPages.arc), IAU / Minor Planet Center, via NASA/JPL
Where Polishook is today
Seen from above the solar system on 2026-10-14: Polishook is 2.65 au from the Sun and 2.12 au from Earth. Computed from JPL's orbital elements.
Facts
| Number | 8464 |
| Provisional designation | 1981 EF28 |
| Orbit class | Main-belt Asteroid |
| Diameter | 5.66 km (#9,474 largest of 17,440 named asteroids with a measured size) |
| Albedo | 0.317 |
| Absolute magnitude (H) | 13.61 |
| Orbital period | 4.29 years |
| Semi-major axis | 2.64 au |
| Perihelion – aphelion | 2.23 – 3.06 au |
| Eccentricity | 0.157 |
| Inclination | 10.5° |
| Closest distance between its orbit and Earth's (MOID) | 1.23 au |
Data: NASA/JPL Small-Body Database and the IAU Minor Planet Center.
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