(171429) Hunstead Main-belt Asteroid
Discovered on 1 September 2007 by Sarneczky, K., Kiss, L. at Siding Spring.
Richard (Dick) W. Hunstead (b. 1943) is an Australian astronomer who has spent most of his career in Sydney. His primary research interest is the high-redshift universe, including quasars, high-redshift radio galaxies, clusters of galaxies and giant radio galaxies. He is also renowned as an enthusiastic teacher.Naming citation (20080122/MPCPages.arc), IAU / Minor Planet Center, via NASA/JPL
Where Hunstead is today
Seen from above the solar system on 2026-10-14: Hunstead is 3.40 au from the Sun and 4.02 au from Earth. Computed from JPL's orbital elements.
Facts
| Number | 171429 |
| Provisional designation | 2007 RD5 |
| Orbit class | Main-belt Asteroid |
| Diameter | 5.59 km (#9,590 largest of 17,440 named asteroids with a measured size) |
| Albedo | 0.0360 |
| Absolute magnitude (H) | 15.52 |
| Orbital period | 5.52 years |
| Semi-major axis | 3.12 au |
| Perihelion – aphelion | 2.84 – 3.40 au |
| Eccentricity | 0.0896 |
| Inclination | 15.5° |
| Closest distance between its orbit and Earth's (MOID) | 1.87 au |
Data: NASA/JPL Small-Body Database and the IAU Minor Planet Center.