Planetarium Köln is the planetarium in Germany.
According to PR-model, koelner-planetarium.de is ranked 1,173,811th in multilingual Wikipedia, in particular this website is ranked 657,229th in English Wikipedia.
The website is placed before aroundarezzo.it and after orloj-sumava-hojsovastraz.cz in the BestRef global ranking of the most important sources of Wikipedia.