(274835) Aachen Main-belt Asteroid
Discovered on 22 August 2009 by E. Schwab at Tzec Maun.
Aachen is a German city, which developed from a Roman settlement and spa. It was the preferred medieval Imperial residence of Charlemagne. From 936 to 1531, the Aachen Cathedral was the coronation church for thirty German kings.Naming citation (MPC batch dated 2019-12-12), IAU / Minor Planet Center, via NASA/JPL
Where Aachen is today
Seen from above the solar system on 2026-10-14: Aachen is 2.63 au from the Sun and 2.77 au from Earth. Computed from JPL's orbital elements.
Facts
| Number | 274835 |
| Provisional designation | 2009 QC11 |
| Orbit class | Main-belt Asteroid |
| Absolute magnitude (H) | 16.97 |
| Orbital period | 3.55 years |
| Semi-major axis | 2.33 au |
| Perihelion – aphelion | 2.00 – 2.66 au |
| Eccentricity | 0.141 |
| Inclination | 4.65° |
| Closest distance between its orbit and Earth's (MOID) | 1.02 au |
Data: NASA/JPL Small-Body Database and the IAU Minor Planet Center.