Cabinet d'astronomie et de physique de Cassel, museum in Germany

The Astronomisch-Physikalisches Kabinett is a museum in Kassel's Orangerie that displays scientific instruments spanning several centuries. The collection includes old telescopes, globes, clocks, vacuum pumps, and mechanical devices that show how scholars studied nature without modern technology.

The collection began in the 16th century under Landgraf Wilhelm IV., who gathered scientific devices as symbols of power and learning. During World War II, many items were damaged or lost, but local residents helped rebuild the collection afterward.

The name reflects its dual focus on astronomy and physics as interconnected sciences displayed throughout the rooms. Visitors notice how the local rulers of Hesse viewed scientific inquiry as central to their authority and the education of their time.

The museum is located in the Orangerie Palace within Karlsaue Park and is easy to reach. Most explanations are in German, so visitors should be prepared for this, which helps with understanding the displays better.

The museum has been closed since April 2021 because the Orangerie buildings need renovation and the presentation is being revised; director Martin Eberle said a reopening there is not expected this decade. On the grounds outside, the Karlsaue planet trail begins with the sun painted on the glass above the entrance, and a device beside the door measures the sun's height and direction.