Page:OnTheRevolutionsOfTheHeavenlySpheres.djvu/2
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NICOLAUS COPERNICUS
ON THE REVOLUTIONS OF THE HEAVENLY SPHERES
CONTENTS
| FOREWORD by Andreas Osiander | |
| LETTER of Nicholas Schonberg | |
| DEDICATION | |
| PREFACE | |
| INTRODUCTION by Georg Joachim Rherticus de Porris | |
| A Brief Commentary on the Hypothesis of the Motion of the Heavenly Bodies | |
| BOOK ONE | |
| Ch. 1: | The Universe Is Spherical |
| Ch. 2: | The Earth Too Is Spherical |
| Ch. 3: | How Earth Forms a Single Sphere with Water |
| Ch. 4: | The Motion of the Heavenly Bodies Is Uniform, Eternal, and Circular or Compounded of Circular Motions |
| Ch. 5: | Does Circular Motion Suit the Earth? What Is its Position? |
| Ch. 6: | The Immensity of the Heavens Compared to the Size of the Earth |
| Ch. 7: | Why the Ancients Thought that the Earth Remained at Rest in the Middle of the Universe as in the Centre |
| Ch. 8: | The Inadequacy of the Previous Arguments and a Refutation of them |
| Ch. 9: | Can Several Motions Be Attributed to the Earth? The Centre of the Universe |
| Ch. 10: | The Order of the Heavenly Spheres |
| Ch. 11: | Proof of the Earth’s Triple Motion . |
| Ch. 12: | Straight Lines Subtended in a Circle |
| Table of the Straight Lines Subtended in a Circle . | |
| Ch. 13: | The Sides and Angles of Plane Rectilinear Triangles |
| Ch. 14: | Spherical Triangles |
| BOOK TWO . . . | |
| Ch. 1: | The Circles and their Names |
| Ch. 2: | The Obliquity of the Ecliptic, the Distance between the Tropics, and the Method of Determining These Quantities |
| Ch. 3: | The Arcs and Angles of the Intersections of the Equator, Ecliptic, and Meridian: the Derivation of the Declination and Right Ascension from These Arcs and Angles, and the Computation of them |
| Table of Declinations [of the Degrees of the Ecliptic] | |
| Table of Right Ascensions | |
| Table of Meridian Angles | |
| Ch. 4: | For Every Heavenly Body Situated outside the Ecliptic, provided that the Body’s Latitude and Longitude Are Known, the Method of Determining its Declination, its Right Ascension, and the Degree of the Ecliptic with which it Reaches Mid-Heaven |
| Ch. 5: | The Intersections of the Horizon |