Calar Alto Observatory

The Calar Alto Observatory is an astronomical observatory located in Almería province in Spain on Calar Alto, a 2,168-meter-high mountain in the Sierra de Los Filabres range.Until 2018, Calar Alto was owned and operated jointly by the German Max Planck Institute for Astronomy in Heidelberg, and the Spanish Institute of Astrophysics of Andalusia in Granada. It was named the "German–Spanish Astronomical Centre" ; in German, Deutsch-Spanisches Astronomisches Zentrum). In 2019, the Council of Andalusia takes over the German partner, sharing the observatory with the Spanish National Research Council through its head institute, IAA-CSIC.