Berlin Observatory
The Berlin Observatory (Berliner Sternwarte) is a German astronomical institution with a series of observatories and related organizations in and around the city of Berlin in Germany, starting from the 18th century. It has its origins in 1700 when Gottfried Leibniz initiated the "Brandenburg Society of Science″ ("Sozietät der Wissenschaften") which would later (1744) become the Prussian Academy of Sciences ("Preußische Akademie der Wissenschaften"). The Society had no observatory but nevertheless an astronomer, Gottfried Kirch, who observed from a private observatory in Berlin. A first small observatory was furnished in 1711, financing itself by calendrical computations.
Ritter Observatory
Ritter Observatory is an astronomical observatory owned and operated by the University of Toledo (UT) in Toledo, Ohio (USA). The Ritter Planetarium is located in the same building, and the university also operates Brooks Observatory in an adjacent building. Ritter Observatory features a Ritchey-Chrétien telescope built in 1967 by Warner & Swasey Company of Cleveland, Ohio. It was installed in 1968, and is used primarily for spectroscopy and occasionally for instruction and public viewing events. Research conducted at the observatory focuses on long-term spectroscopic monitoring of stars such as Rigel, Beta Lyrae, and Zeta Tauri.