(429084) Dietrichrex Main-belt Asteroid
Discovered on 13 September 2009 by Busch, M., Kresken, R. at ESA OGS.
Dietrich Rex (1934-2016) was a German physicist, university professor and head of the Spaceflight and Reactor Technology Institute of the Technical University of Braunschweig. He pioneered space debris research in Europe and fostered world-wide cooperation in the field.Naming citation (MPC batch dated 2017-01-12), IAU / Minor Planet Center, via NASA/JPL
Where Dietrichrex is today
Seen from above the solar system on 2026-10-14: Dietrichrex is 2.34 au from the Sun and 1.36 au from Earth. Computed from JPL's orbital elements.
Facts
| Number | 429084 |
| Provisional designation | 2009 RN27 |
| Orbit class | Main-belt Asteroid |
| Absolute magnitude (H) | 16.85 |
| Orbital period | 4.24 years |
| Semi-major axis | 2.62 au |
| Perihelion – aphelion | 2.31 – 2.92 au |
| Eccentricity | 0.116 |
| Inclination | 14.6° |
| Closest distance between its orbit and Earth's (MOID) | 1.35 au |
Data: NASA/JPL Small-Body Database and the IAU Minor Planet Center.
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