Revolving Wooden Quadrant is a photograph by Library Of Congress/science Photo Library/science Photo Library which was uploaded on October 28th, 2019.
Revolving Wooden Quadrant
Illustration of a revolving wooden astronomical quadrant from Tycho Brahe's observatory at Uraniborg, Hven, Denmark (now Sweden). It was used for... more
Title
Revolving Wooden Quadrant
Artist
Library Of Congress/science Photo Library/science Photo Library
Medium
Photograph
Description
Illustration of a revolving wooden astronomical quadrant from Tycho Brahe's observatory at Uraniborg, Hven, Denmark (now Sweden). It was used for measuring the altitudes of stars (their angular heights above the horizon). Brahe (1546-1601) is considered the greatest astronomical observer of the pre-telescopic era. This illustration is from a 1602 edition of Tycho Brahe's Astronomiae Instauratae Mechanica (Astronomical Instruments). In this book, first published in 1598, he described the astronomical instruments he invented and used to make his astronomical measurements.
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October 28th, 2019
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