Sujet

Hevelius observing with a wooden-tubed refracting telescope some 30 feet

Légende

Hevelius observing with a wooden-tubed refracting telescope some 30 feet (9.144m). The block-and-tackle and rope mounting was not inconvenient. From "Selenographia" by Johannes Hevelius (Gedani, Gdansk. Danzig, 1647). Engraving.

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Photos12.com - Ann Ronan Picture Library

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Photo12/Ann Ronan Picture Library

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ARP07113_010551P

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32.0Mo (1.6Mo) / 30.0cm x 26.7cm / 3543 x 3155 (300dpi)