Tycho Brahe

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Tycho Brahe (1546-1601) was a Danish nobleman who made the most significant contribution to our knowledge of astronomy before the telescope arrived. He discovered a supernova, observed the elliptical interplanetary orbit of a comet, updated the accuracy of the calendar, and proposed a whole new theory of the positions of the heavenly bodies in the night sky.

More about: Tycho Brahe


  • 1546 - 1601
    Life of the Danish astronomer Tycho Brahe.
  • 14 Dec 1546
    The astronomer Tycho Brahe is born in Skåne (Scania).
  • 11 Nov 1572
    Tycho Brahe first observes the new star or supernova in the Cassiopeia constellation.
  • 1573
    Tycho Brahe publishes his research on the 1572 supernova in his De Nova Stella (1573).
  • 1576
    The Danish astronomer Tycho Brahe builds his Uraniborg observatory on the island of Hven (Ven).
  • 1588
    The Danish astonomer Tycho Brahe publishes his Tychonic model of the comsos in his book Of More Recent Phenomena of the Ethereal World.
  • 1597
    The Danish astronomer Tycho Brahe is obliged to leave his observatory Uraniborg.
  • 1598
    The Danish astronomer Tycho Brahe publishes his Instruments for the Restoration of Astronomy.
  • 1599
    Tycho Brahe is appointed the court mathematician to the Holy Roman Emperor in Prague.
  • 24 Oct 1601
    The Danish astronomer Tycho Brahe dies in Prague.