Sujet

Observers using a refracting telescope

Légende

Observers using a refracting telescope of long focal length mounted on a tripod, and fitted with a simple plumb line and scale for measuring the altitude of the object being observed. Engraving from "Oculus artificialis teledioptricus sive Telescopium" by Johann Zahn (Nuremberg, 1702).

Info+

Photos12.com - Ann Ronan Picture Library

Crédit

Photo12/Ann Ronan Picture Library

Notre référence

ARP07113_010554P

Licence

Droits gérés

Format disponible

27,4Mo (2,3Mo) / 30,0cm x 22,9cm / 3543 x 2708 (300dpi)