Sujet

Projecting the sun's image through a refracting telescope

Légende

Projecting the sun's image through a refracting telescope onto a screen in a darkened room (camera obscura) in order to study sunpots. From "Selenographia" by Johannes Hevelius (Gedani, Gdansk. Danzig, 1647). Engraving. S

Info+

Photos12.com - Ann Ronan Picture Library

Crédit

Photo12/Ann Ronan Picture Library

Notre référence

ARP07113_010549P

Licence

Droits gérés

Format disponible

32,4Mo (3,1Mo) / 27,1cm x 30,0cm / 3198 x 3543 (300dpi)