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).
px | px | dpi | = | cm | x | cm | = | MB |
Details
Creative#:
TOP16003574
Source:
達志影像
Authorization Type:
RM
Release Information:
須由TPG 完整授權
Model Release:
N/A
Property Release:
N/A
Right to Privacy:
No
Same folder images: