Hamburg Observatory is an astronomical observatory located in the Bergedorf borough of the city of Hamburg in northern Germany. It is owned and operated by the University of Hamburg, Germany since 1968, although it was founded in 1825 by the City of Hamburg and moved to its present location in 1912. It has operated telescopes at Bergedorf, at two previous locations in Hamburg, at other observatories around the world, and it has also supported space missions.
The largest near-Earth object was discovered at this Observatory by German astronomer Walter Baade at the Bergedorf Observatory in Hamburg on 23 October 1924. That asteroid, 1036 Ganymed is about 20 miles in diameter.The Hamburg 1-meter reflector telescope was one of the biggest telescopes in Europe at that time, and by some measures the fourth largest in the World.
Wikipedia https://en.wikipedia.org/wiki/Hamburg_Observatory
Official Website https://www.hs.uni-hamburg.de/
Coordinates 53°28'49.445" N 10°14'25.93" E