Sonneberg Observatory (German: Sternwarte Sonneberg) is an astronomical observatory and was formerly an institute of the Academy of Science in the German Democratic Republic. It was founded in 1925 by Cuno Hoffmeister and is located in Sonneberg, Thuringia, Germany. The Sonneberg Observatory has one of the world's largest collections of photographic plates in its museum of astronomy.^[1]

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Sonneberg Observatory

Sonneberg Observatory in 2012
Observatory code	031
Location	Sonneberg, Thuringia, Germany
Coordinates	50°22′39″N 11°11′24″E
Altitude	638 m (2,093 ft)
Established	1925
Website	www.4pisysteme.de/observatory/observatory.doc
Location of Sonneberg Observatory
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• List of astronomical observatories