(309295) Hourenzhi Main-belt Asteroid
Discovered on 2 November 2000 by LINEAR at Socorro.
Hou Renzhi (1911-2013), an academician of Chinese Academy of Sciences, is a pioneer of modern historical geography in China. He made outstanding contributions to the development of historical geography both in theory and in practice.Naming citation (WGSBN Bull. 4, #9, 12), IAU / Minor Planet Center, via NASA/JPL
Where Hourenzhi is today
Seen from above the solar system on 2026-10-14: Hourenzhi is 2.08 au from the Sun and 1.82 au from Earth. Computed from JPL's orbital elements.
Facts
| Number | 309295 |
| Provisional designation | 2007 RX228 |
| Orbit class | Main-belt Asteroid |
| Absolute magnitude (H) | 17.11 |
| Orbital period | 3.68 years |
| Semi-major axis | 2.38 au |
| Perihelion – aphelion | 1.93 – 2.84 au |
| Eccentricity | 0.191 |
| Inclination | 2.27° |
| Closest distance between its orbit and Earth's (MOID) | 0.931 au |
Data: NASA/JPL Small-Body Database and the IAU Minor Planet Center.