Three Imperial Mathematicians: Kepler Trapped Between Tycho Brahe and Ursus

annotations Apollonius Apollonius of Perga Apollonius's Astro Astronomical Letters August Benátky Bürgi Chronotheatrum comet Coper Copernican Copernicus Copernicus's Revolutions copy death December Defense of Tycho Denmark diagram Dithmarschen earth edition of Copernicus's emperor engraving epicycle Erasmus Reinhold February Foundation of Astronomy Gingerich Graz handwriting heavenly Heinrich Rantzau Hven hypo Imperial Mathematician Johannes Kepler Jost Bürgi Kassel Kepler's letter Landgrave Landgrave of Hesse Landgrave's later learned letter to Brahe letter to Herwart letter to Kepler letter to Ursus Liddel little book lord Maestlin Mars's mathematics Matthaeus Merian motion noble NOTES ON CHAPTER opposite Paul Wittich Peucer plagiarism Prague praise printed Ptolemy published Rantzau Reinhold reply Roeslin Rollenhagen Rothmann Rudolph sent sphere stars stationary Stella caudata Strasbourg Styria tion Topographia Tübingen Tycho Brahe University Uraniburg Ursus's Ursus's Astronomical Hypotheses Wagn Wandsbek wanted Westman Wittenberg Wittich write written