Title

Engraving depicting the use of a cross-staff used to measure altitudes of celestial objects

Caption

Engraving depicting the use of a cross-staff used to measure altitudes of celestial objects. Dated 19th Century

Date

19th century

Credit line

Photo12/Ann Ronan Picture Library

Reference

ARP23A13_311

License type

Rights managed

Available size

60,0Mb (6,9Mb) / 12,6in x 18,4in / 3793 x 5529 (300dpi)

Keywords

19th Century Engraving Engraved Cross-Staff Jacob's Staff Ballastella Fore-Staff Balestilha Measurement Measurements Altitudes Altitude Celestial Celestial Object Astronomical Astronomer History of Astronomy Astrological Astronomy 19th Century