Born in 1546 in Denmark, Tycho Brahe served as an astronomer for the king of Denmark, and later, for the Holy Roman Emperor in Prague. He was well known for his accurate and comprehensive astronomical and planetary observations. He was also a pretty eccentric character: Tycho Brahe famously lost his nose in a sword duel (supposedly a quarrel with another student over who was the better mathematician), and attached a metal nose in its place.
A heavy drinker, who threw legendary parties, he also kept a dwarf called Jepp who Brahe believed could see the future. He also had a tame elk, which was supposedly given too much beer at one of the feasts, and fell down the stairs to its tragic death.
The images are astronomical insruments from Tycho Brahe’s Astronomiæ instauratæ mecanica, Wandsbek 1598. The Royal Library of Denmark, who had this particular edition digitized, released it as (allowing no commercial use). Non-colored editions of the book are available at Archive.org.
For a full list of the instruments with details, please click here.
Source: The Royal Library (Denmark)