(15846) Billfyfe Main-belt Asteroid
Discovered on 20 October 1995 by Spacewatch at Kitt Peak.
William Sefton Fyfe (b. 1927) is a geochemist who studied in New Zealand. He spent time in California and England and then was chair of the department of geology and dean of science at the University of Western Ontario. The name was suggested by R. Jedicke and P. Jedicke.Naming citation (20050523/MPCPages.arc), IAU / Minor Planet Center, via NASA/JPL
Where Billfyfe is today
Seen from above the solar system on 2026-10-14: Billfyfe is 2.37 au from the Sun and 1.72 au from Earth. Computed from JPL's orbital elements.
Facts
| Number | 15846 |
| Provisional designation | 1995 UK28 |
| Orbit class | Main-belt Asteroid |
| Diameter | 3.04 km (#15,108 largest of 17,440 named asteroids with a measured size) |
| Albedo | 0.363 |
| Absolute magnitude (H) | 14.6 |
| Orbital period | 3.82 years |
| Semi-major axis | 2.45 au |
| Perihelion – aphelion | 2.10 – 2.79 au |
| Eccentricity | 0.141 |
| Inclination | 5.71° |
| Closest distance between its orbit and Earth's (MOID) | 1.10 au |
Data: NASA/JPL Small-Body Database and the IAU Minor Planet Center.
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