(227427) Williamwren Main-belt Asteroid
Discovered on 6 November 2005 by Mt. Lemmon Survey at Mount Lemmon.
William R. Wren (b. 1955) was Special Assistant to the Superintendent, McDonald Observatory, Texas. He worked with the oil and gas industry, local communities, the National Park Service, Texas Parks and Wildlife, and the Nature Conservancy to mitigate light pollution and establish the Greater Big Bend International Dark Sky Reserve.Naming citation (WGSBN Bull. 5, #17, 24), IAU / Minor Planet Center, via NASA/JPL
Where Williamwren is today
Seen from above the solar system on 2026-10-14: Williamwren is 2.59 au from the Sun and 2.12 au from Earth. Computed from JPL's orbital elements.
Facts
| Number | 227427 |
| Provisional designation | 2005 VX78 |
| Orbit class | Main-belt Asteroid |
| Diameter | 5.17 km (#10,313 largest of 17,440 named asteroids with a measured size) |
| Albedo | 0.0660 |
| Absolute magnitude (H) | 15.46 |
| Orbital period | 4.17 years |
| Semi-major axis | 2.59 au |
| Perihelion – aphelion | 2.20 – 2.99 au |
| Eccentricity | 0.153 |
| Inclination | 28.9° |
| Closest distance between its orbit and Earth's (MOID) | 1.35 au |
Data: NASA/JPL Small-Body Database and the IAU Minor Planet Center.
Also named after someone called William
- (1853) McElroy
- (2220) Hicks
- (3445) Pinson
- (3894) Williamcooke
- (4137) Crabtree
- (4423) Golden
- (4838) Billmclaughlin
- (5345) Boynton
- (5763) Williamtobin
- (6012) Williammurdoch
- (6613) Williamcarl
- (6756) Williamfeldman
All asteroids named after someone called William