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Earth - Sun distance-printing
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Earth - Sun distance-printing

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To solve the Earth-Sun distance problem, it was necessary in the History of Science for the following to have occurred:

  • Tycho Brache's accumulated historic planetary data, especially that of Mars;
  • The mathematics of Parallax utilized by Giovanni Cassini in 1672 at the Royal Observatory, Paris;
  • Kepler's Equations of Planetary Motion.

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