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| Observatory code | 604 | ||||||||||||||
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| Location | Berlin, Germany | ||||||||||||||
| Coordinates | 52°29′09″N 13°28′34″E / 52.48583°N 13.47611°E | ||||||||||||||
| Altitude | 41 m | ||||||||||||||
| Established | September 1896 | ||||||||||||||
| Website | www.astw.de | ||||||||||||||
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  Location of Archenhold Observatory | |||||||||||||||
 Related media on Commons | |||||||||||||||
The Archenhold Observatory (German: Archenhold-Sternwarte) was named in honour of Friedrich Simon Archenhold, is an observatory in Berlin-Treptow. It houses the Großer Refraktor (Great Refractor), which is the longest pointable telescope in the world. It is also called Die Himmelskanone (Celestial Cannon).