| Archenhold Observatory | |
|---|---|
| Location | Berlin, Germany |
| Established | 1 May 1896 |
| Website www.astw.de |
|
The Archenhold Observatory, named in honor of Friedrich Simon Archenhold, is an observatory in Berlin-Treptow.
It was opened to the public on 1 May 1896 as the Treptow Observatory to coincide with the Great Industrial Exposition of Berlin. Based on Archenhold's design it contained what was then the world's longest telescope, with a focal length of 21 meters. The Observatory was named after Archenhold at its 50th anniversary in 1946. The telescope was deactivated from 1958-1983 for repairs, and remains functional to this day[1]
The observatory is also noted as the location of Albert Einstein's first public lecture on the Theory of Relativity in Berlin.