Title

Illustration of an astronomical quadrant, an instrument used to measure angles up to 90 degrees

Caption

Illustration of an astronomical quadrant, an instrument used to measure angles up to 90 degrees. Dated 18th Century

Date

18th century

Credit line

Photo12/Ann Ronan Picture Library

Reference

ARP23A13_435

License type

Rights managed

Available size

60,0Mb (2,0Mb) / 15,4in x 15,2in / 4606 x 4553 (300dpi)

Keywords

18th Century Illustration Illustrated Astronomical Astronomy History of Astronomy Astrologer Tool Astronomical Quadrant Quadrant Measure Measurement Ptolemy Astrolabe 18th Century