Kepler as Castigator and Historian: His Preparatory Notes for Contra Ursum

  title={Kepler as Castigator and Historian: His Preparatory Notes for Contra Ursum},
  author={N. Jardine},
  journal={Journal for the History of Astronomy},
  pages={257 - 297}
  • N. Jardine
  • Published 1 August 2006
  • Physics
  • Journal for the History of Astronomy
In letters published by Tycho Brahe in Epistolae astronomicae (hereafter EA) of 1596, Nicolaus Ursus (Baer), the Imperial Mathematician, found himself denounced as a "dirty rascal" and plagiarist of Tycho Brahe's new geoheliocentrlc hypotheses. In the following year Ursus hit back with a vengeance in his De astronomicis hypothesibus (hereafter DAH). Peppered with insults and spiced with mockery, Ursus's satirical counterattack has a core of prima facie effective philosophical and historical… 

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