(11945) Amsterdam Main-belt Asteroid
Discovered on 15 August 1993 by E. W. Elst at Caussols.
Amsterdam, Dutch financial-business capital, started its existence in Oct. 1275 as a small fishing settlement on the Amstel river. By the seventeenth century it experienced its “golden age” as a mercantile center, and in the eighteenth century it was a center of tolerance for the publication of clandestine works.Naming citation (20070106/MPCPages.arc), IAU / Minor Planet Center, via NASA/JPL
Where Amsterdam is today
Seen from above the solar system on 2026-10-14: Amsterdam is 3.12 au from the Sun and 2.70 au from Earth. Computed from JPL's orbital elements.
Facts
| Number | 11945 |
| Provisional designation | 1993 PC5 |
| Orbit class | Main-belt Asteroid |
| Absolute magnitude (H) | 13.32 |
| Orbital period | 5.30 years |
| Semi-major axis | 3.04 au |
| Perihelion – aphelion | 2.67 – 3.41 au |
| Eccentricity | 0.121 |
| Inclination | 10.4° |
| Closest distance between its orbit and Earth's (MOID) | 1.66 au |
Data: NASA/JPL Small-Body Database and the IAU Minor Planet Center.
Also discovered on 15 August 1993
- (9377) Metz
- (9629) Servet
- (9630) Castellion
- (10137) Thucydides
- (11309) Malus
- (11946) Bayle
- (11947) Kimclijsters
- (20060) Johannforster
- (100122) Alpes-Maritimes