Title
Telling time at night using a nocturnal
Caption
Telling time at night using a nocturnal. The hour is obtained by measuring the angular position of the imaginary line joining the 'pointers' in the constellation of the Plough to the Pole Star. From Peter Apian "Cosmographia", Antwerp, 1539
Date
1539
Credit line
Photo12/Ann Ronan Picture Library
Reference
ARP07103_460000628
License type
Rights managed
Available size
24,8Mb (792,5Kb) / 11,8in x 8,2in / 3543 x 2448 (300dpi)