German astronomical observatory. Historical engraving of 18th Century astronomers at an observatory in Germany. From Weltall und Menscheit (Universe a

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German astronomical observatory. Historical engraving of 18th Century astronomers at an observatory in Germany. From Weltall und Menscheit (Universe and Humanity), by Hans Kraemer (ca. 1880).

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Size: 2462px × 3614px
Photo credit: © CCI ARCHIVES/SCIENCE PHOTO LIBRARY / Alamy / Afripics
License: Licensed
Model Released: No

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