(8345) Ulmerspatz Main-belt Asteroid
Discovered on 22 January 1987 by E. W. Elst at La Silla.
The Ulmer Spatz (sparrow) is a copper statuette originally on top of the roof of the cathedral of Ulm. The legend goes that a sparrow, building its nest, showed the builders of Ulm how to move a large beam through a small entrance door.Naming citation (20021120/MPCPages.arc), IAU / Minor Planet Center, via NASA/JPL
Where Ulmerspatz is today
Seen from above the solar system on 2026-10-14: Ulmerspatz is 2.23 au from the Sun and 3.02 au from Earth. Computed from JPL's orbital elements.
Facts
| Number | 8345 |
| Provisional designation | 1987 BO1 |
| Orbit class | Main-belt Asteroid |
| Diameter | 7.19 km (#7,422 largest of 17,440 named asteroids with a measured size) |
| Albedo | 0.341 |
| Rotation period | 17.1 hours |
| Absolute magnitude (H) | 12.77 |
| Orbital period | 3.58 years |
| Semi-major axis | 2.34 au |
| Perihelion – aphelion | 1.80 – 2.88 au |
| Eccentricity | 0.229 |
| Inclination | 23.4° |
| Closest distance between its orbit and Earth's (MOID) | 0.837 au |
Data: NASA/JPL Small-Body Database and the IAU Minor Planet Center.