The Siddhāntasundara of Jñānarāja: An English Translation with Commentary

Contents

Contents List of Figures xi List of Tables xiii Preface xv Introduction 1 I.1 Life and times of Jñānarāja . . . . . . . . . . . . 1 I.1.1 Brief overview of the Siddhāntasundara . 2 I.1.2 Sources on Jñānarāja’s date and location 3 I.1.3 The date of Jñānarāja . . . . . . . . . . . 4 I.1.4 Jñānarāja’s family . . . . . . . . . . . . . 5 I.1.5 Pārthapura, Jñānarāja’s native town . . . 8 I.1.6 The works of Jñānarāja . . . . . . . . . . 12 I.2 The Siddhāntasundara . . . . . . . . . . . . . . . 13 I.2.1 Indian astronomy . . . . . . . . . . . . . . 13 I.2.2 Structure of the Siddhāntasundara . . . . 22 I.2.3 Jñānarāja’s sources . . . . . . . . . . . . . 26 I.2.4 Special features of the Siddhāntasundara . 35 I.2.5 Importance of the Siddhāntasundara . . . 37 I.3 Textual basis of this translation . . . . . . . . . . 40 1 Chapter on Cosmology Section 1 Lexicon of the Worlds 43 2 Chapter on Cosmology Section 2 Rationale of Planetary Motion 71 vii viii Contents 3 Chapter on Cosmology Section 3 Method of Projections 82 4 Chapter on Cosmology Section 4 Description of the Great Circles 92 5 Chapter on Cosmology Section 5 Astronomical Instruments 98 6 Chapter on Cosmology Section 6 Description of the Seasons 104 7 Chapter on Mathematical Astronomy Section 1 Mean Motion 121 8 Chapter on Mathematical Astronomy Section 2 True Motion 172 9 Chapter on Mathematical Astronomy Section 3 Three Questions (on Diurnal Motion) 216 10 Chapter on Mathematical Astronomy Section 4 Occurrence of Eclipses 240 11 Chapter on Mathematical Astronomy Section 5 Lunar Eclipses 246 12 Chapter on Mathematical Astronomy Section 6 Solar Eclipses 267 Contents ix 13 Chapter on Mathematical Astronomy Section 7 Rising and Setting of Planets 293 14 Chapter on Mathematical Astronomy Section 8 Shadows of Stars, Constellations, Polestars, and So On 302 15 Chapter on Mathematical Astronomy Section 9 Elevation of the Moon’s Horns 310 16 Chapter on Mathematical Astronomy Section 10 Conjunctions of Planets 317 17 Chapter on Mathematical Astronomy Section 11 Occurrence of Pātas 321 References 329 Index 339 This page intentionally left blank ...