(8270) Winslow Main-belt Asteroid
Discovered on 2 May 1989 by E. F. Helin at Palomar.
Named in honor of John Seymour Winslow, a friend of the discoverer's husband, Ron, since grade school. John graduated from Caltech with a degree in physics and later returned for a master's degree in electrical engineering. He developed the equipment used to master the MCA video disc, and later became a partner in Optical Disc Corporation, a firm that provides mastering equipment for compact discs. This minor planet was presented on the occasion of the 45th reunion of John and Ron's Caltech Class of '53.Naming citation (19980808/MPCPages.arc), IAU / Minor Planet Center, via NASA/JPL
👶 Winslow as a baby name🐶 Winslow as a dog name
Where Winslow is today
Seen from above the solar system on 2026-10-14: Winslow is 2.55 au from the Sun and 2.64 au from Earth. Computed from JPL's orbital elements.
Facts
| Number | 8270 |
| Provisional designation | 1989 JF |
| Orbit class | Main-belt Asteroid |
| Diameter | 3.88 km (#13,035 largest of 17,440 named asteroids with a measured size) |
| Albedo | 0.269 |
| Rotation period | 6.37 hours |
| Absolute magnitude (H) | 14.36 |
| Orbital period | 3.22 years |
| Semi-major axis | 2.18 au |
| Perihelion – aphelion | 1.81 – 2.55 au |
| Eccentricity | 0.171 |
| Inclination | 4.43° |
| Closest distance between its orbit and Earth's (MOID) | 0.799 au |
Data: NASA/JPL Small-Body Database and the IAU Minor Planet Center.
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