Giovanni Borelli and the Comets of 1664–65

  title={Giovanni Borelli and the Comets of 1664–65},
  author={Luciano Boschiero},
  journal={Journal for the History of Astronomy},
  pages={11 - 30}
On 18 December 1664, Giovanni Borelli (1608–79), a mathematician and philosopher of nature working for the Grand Ducal Court in Tuscany, excitedly wrote from Pisa to his patron, Prince Leopoldo de’ Medici, in Florence. Borelli recounted how early that morning he had heard about the sighting of a comet just above the horizon. Borelli did not have time to observe the comet through a telescope. Instead he simply recorded its latitudinal and longitudinal positions, as well as its apparent… Expand
1 Citations


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