Zeiss-Planetarium, Jena main entrance (2017)Historic view of the Zeiss-Planetarium in JenaThe precursor dome under construction on the roof of the Zeiss factory (ca. 1924).2021
The Zeiss-Planetarium in Jena, Germany, is the oldest continuously operating planetarium in the world.
Engineered by German engineer Walther Bauersfeld, the building was opened on 18 July 1926.[1]
The Zeiss-Planetarium is a projection planetarium; the planets and fixed stars are projected onto the inner surface of a white cupola.