astronomy, astronomers, preparing a astronomical observation in Brazil, wood engraving aftewr drawing by Franz Keller-Leuzinger (1836 - 1890), South America, jungle, scientists, science, 19th century, historic, historical, Keller - Leuzinger, people,

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Photo credit: © INTERFOTO / History / Alamy / Afripics
License: Licensed
Model Released: No

Keywords: astronomers, astronomical, astronomy, brazil, engraving, observation, preparing, wood