Bürgiho sextant, 17. století

Bürgiho sextant, 17. století
Swiss Jost Bürgi (1552–1632) learned the trade of clockmaking and thanks to his interest in astronomy and cooperation with…

Beginning in 1604, J. Bürgi worked as the court clockmaker and designer. Here he got to know and worked with Johannes Kepler. Kepler used Bürgi’s sextant to measure Mars’s opposition. Kepler used this measurement in formulating…