Sujet

Refracting telescope

Légende

Refracting telescope on a very simple equatorial mounting being used in a darkened room (camera obscura) in order to project the Sun's image so that sunspots could be studied. From "Rosa Ursina" by Christoph Scheiner (Bracciano, 1630). Engraving. Science Astronomy Scientific Instrument.

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Photos12.com - Ann Ronan Picture Library

Crédit

Photo12/Ann Ronan Picture Library

Notre référence

ARP07113_010555P

Licence

Droits gérés

Format disponible

29,3Mo (2,2Mo) / 24,5cm x 30,0cm / 2892 x 3543 (300dpi)