(12431) Webster Main-belt Asteroid
Discovered on 18 December 1995 by Spacewatch at Kitt Peak.
Alan Reginald Webster (b. 1939), a professor in the department of electrical and computer engineering at the University of Western Ontario, has research interests that include meteor astronomy.Naming citation (20020427/MPCPages.arc), IAU / Minor Planet Center, via NASA/JPL
👶 Webster as a baby name🐶 Webster as a dog name
Where Webster is today
Seen from above the solar system on 2026-10-14: Webster is 2.62 au from the Sun and 2.79 au from Earth. Computed from JPL's orbital elements.
Facts
| Number | 12431 |
| Provisional designation | 1995 YY10 |
| Orbit class | Main-belt Asteroid |
| Diameter | 4.08 km (#12,531 largest of 17,440 named asteroids with a measured size) |
| Albedo | 0.320 |
| Absolute magnitude (H) | 14.12 |
| Orbital period | 4.09 years |
| Semi-major axis | 2.56 au |
| Perihelion – aphelion | 2.34 – 2.77 au |
| Eccentricity | 0.0849 |
| Inclination | 15.6° |
| Closest distance between its orbit and Earth's (MOID) | 1.40 au |
Data: NASA/JPL Small-Body Database and the IAU Minor Planet Center.
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All asteroids named after someone called Alan