Tycho Brahe's mural quadrant in Uranienborg (Uraniborg). The quadrant (radius c. 194cm) was made from brass and was affixed to a wall that was oriented precisely north-south. The observer (right) views a star through the opposite opening (upper left) to determine the star's altitude as it passes through the meridian. An assistant (lower right) reads the time off a clock and another one (lower left) records the measurements. The area above the quadrant is filled with a mural painting showing several other of Brahe's instruments. See Brahe's original description of the instrument.
日付
1598年頃
date QS:P,+1598-00-00T00:00:00Z/9,P1480,Q5727902
原典
Engraving from the book: Tycho Brahe (1598), Astronomiae instauratae mechanica, Wandsbeck. Downloaded from the online exhibition at the Royal Library; stitching by Axel Boldt
{{Information |Description=Tycho Brahe's mural quadrant in Uranienborg (Uraniborg). The quadrant (radius c. 194cm) made from brass was affixed to a wall that was oriented precisely nor...
