Planispheric Astrolabe, North African, 18th century. Silver. An astrolabe was an elaborate inclinometer, historically used by astronomers and navigators to measure the altitude above the horizon of a celestial body, day or night. It can be used to identify stars or planets, to determine local latitude given local time, to survey, or to triangulate. It was used in classical antiquity, the Islamic Golden Age, the European Middle Ages and the Age of Discovery for all these purposes.
RMID:Image ID:2CWBATW
Image details
Contributor:
World History Archive / Alamy Stock PhotoImage ID:
2CWBATWFile size:
60 MB (1.6 MB Compressed download)Releases:
Model - no | Property - noDo I need a release?Dimensions:
4102 x 5112 px | 34.7 x 43.3 cm | 13.7 x 17 inches | 300dpiDate taken:
31 August 2019Photographer:
World History ArchiveMore information:
This image could have imperfections as it’s either historical or reportage.