Simon Marius’s Mundus Iovialis: 400th Anniversary in Galileo’s Shadow

  title={Simon Marius’s Mundus Iovialis: 400th Anniversary in Galileo’s Shadow},
  author={Jay M. Pasachoff},
  journal={Journal for the History of Astronomy},
  pages={218 - 234}
  • J. Pasachoff
  • Published 1 May 2015
  • Physics
  • Journal for the History of Astronomy
Simon Marius, Court Astronomer in Ansbach in Germany, independently discovered the moons of Jupiter one day after Galileo’s widely accepted discovery on 7 January 1610. Because Marius was using the Julian calendar (so-called O.S., Old Style), his discovery was made in 1609, though adding the 10 days of difference to transform, to the Gregorian calendar (so-called N.S., New Style) that Galileo was using, his notes of his discovery give 8 January 1610 (N.S.). Further, though Galileo famously… 
Simon Marius’s Mundus Iovialis and the Discovery of the Moons of Jupiter
Though the details of who was first to see the four major satellites of Jupiter are obscured by the mists of time, it seems that Simon Mayr (Marius) nearly simultaneously and independently discovered
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This chapter analyzes the mathematical astronomy in the printed annual Schreibkalender and prognostications authored by Simon Marius for the years 1601–1629. It considers how Marius determined the
Advanced Plasma Analyzer for Measurements in the Magnetosphere of Jupiter
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Galilei, Galileo
  • A. Post
  • Encyclopedia of Renaissance Philosophy
  • 2021