पञ्चसिद्धान्तिका (आचार्य वराहमिहिर - सूर्य, रोमक, पौलिश, वासिष्ठ एवं पितामह सिद्धान्त)

CONTENTS Page PREFACE V CONTENTS IX INTRODUCTION XIII Introductory – Source Material – Presentation of the Text – Translation – Notes – Division of Pañcasiddhāntikā – Ch. XVIII of Pañcasiddhāntikā – The Five Siddhāntas in PS : Their distribu- tion – Content analysis of the Pañcasiddhāntikā – Depiction of the Siddhāntas in the PS – Compara- tive study of the Siddhāntas -- Varāhamihira : His life and works. Page Ch.I. INTRODUCTION OF THE WORK Aim of the Work (verses 1-2) 1 The Five Schools of Astronomy (3-4) 4 Contents of the Work (5-7) 5 Days from Epoch : Romaka (8-10) 6 Days from Epoch : Pauliśa (11-13) 11 Yuga of the Sun and the Moon: Romaka and Saura (14-16) 15 Lord of the year (17-18) 18 Lord of the Month (19) 20 Lord of the Horā etc. (20-25) 20 Names of the 30 days of the Parsi months 24 Ch.II. VĀSIṢṬHA-SIDDHĀNTA : PLANETARY COMPUTATIONS ETC. Introductory 25 True Sun (1) 25 True Moon (2-4) 27 Nakṣatra and Tithi (7) 33 Day-time (8) 34 Gnomonic Shadow (9-10) 35 Lagna from shadow and vice versa (11-13) 37 Ch.III. PAULIŚA-SIDDHĀNTA : PLANETARY COMPUTATION ETC. Introductory 40 True Sun (1-3) 40 True Motion of Moon (5) 45 Equation of the centre (5-9) 47 Cara or Oblique ascension (10) 48 Day-time (11-12) 50 Deśāntara (13-14) 51 Page Local Sunset time (15) 53 Nakṣatra computation (16) 54 Sun’s daily motion (17) 56 Karaṇas (18-19) 57 Vyatīpāta and Vaidhṛta (20-22) 58 Ṣaḍaśīti-puṇyakāla (23-24) 64 Solstices (25) 65 Saṅkrānti-kāla (26) 65 Tridinaspṛg-yoga (27) 66 Rāhu (Node) (28-29) 67 Moon’s latitude (30-31) 69 Defect in Bhadraviṣṇu (32) 71 Defect in Pādāditya (33) 71 Defect in Romaka (34-37) 71 Ch.IV. THREE PROBLEMS : TIME, PLACE AND DIRECTION Introductory 76 Table of R Sines (1-15) 76 Declination of the Sun and the Moon (16-18) 87 Gnomonic shadow (19) 90 Latitude from Shadow (20-21) 91 Sine zenith distance (22) 95 Sine Co-latitude and Day-diameter (23-25) 96 Cara or Oblique Ascension (26) 98 Latitude from Cara (27-28) 100 Rt. ascensional difference (29-30) 102 Rising Signs (31) 104 Time to reach the Prime vertical (32-34) 106 Great gnomon (Sama-śaṅku) and its shadow (35) 110