CHAPTER V.. The Reception of the Coppernican Theory and the Progress

THE RECEPTION OF THE COPPERNICAN THEORY AND THE PROGRESS OF OBSERVATION (FROM ABOUT 1543 A.D. TO ABOUT 1601 A.D.), §§ 93-112 125-144

§§ 93-4. The first reception of the De Revolutionibus: Reinhold: the Prussian Tables 125

§ 95. Coppernicanism in England: Field, Recorde, Digges 127

§ 96. Difficulties in the Coppernican system: the need for progress in dynamics and for fresh observations 127

§§ 97-8. The Cassel Observatory: the Landgrave William IV., Rothmann, and Bürgi: the star catalogue: Bürgi’s invention of the pendulum clock 128

§ 99. =Tycho Brahe=: his early life 130

§ 100. The new star of 1572: travels in Germany 131

§§ 101-2. His establishment in Hveen: Uraniborg and Stjerneborg: life and work in Hveen 132

§ 103. The comet of 1577, and others 135

§ 104. Books on the new star and on the comet of 1577 136

§ 105. Tycho’s system of the world: quarrel with Reymers Bär 136

§ 106. Last years at Hveen: breach with the King 138

§ 107. Publication of the Astronomiae Instauratae Mechanica and of the star catalogue: invitation from the Emperor 139

§ 108. Life at Benatek: co-operation of Kepler: death 140

§ 109. Fate of Tycho’s instruments and observations 141

§ 110. Estimate of Tycho’s work: the accuracy of his observations: improvements in the art of observing 141

§ 111. Improved values of astronomical constants. Theory of the moon: the variation and the annual equation 143

§ 112. The star catalogue: rejection of trepidation: unfinished work on the planets 144