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

CONTENTS XI
Page
Ch.XI. ECLIPSE DIAGRAM
Introduction 236
Marking the ecliptic etc. (1-3) 236
Marking of points of contact etc. (4-5) 238
Conversion of minutes into angles (6) 240
Ch.XII. PAITĀMAHA SIDDHĀNTA
Introduction 241
Days from Epoch (1-2) 241
Tithi, Nakṣatra etc. (3) 243
Vyatīpāta (4) 244
Duration of a day (5) 246
Ch.XIII. SITUATION OF THE
EARTH: COSMOGONY
Situation of the earth (1-4) 248
Rotation of the earth (5-8) 249
Situation of the Gods and Asuras (9-13) 250
Signs and Yojanas (14-16) 252
Position of Laṅkā and Ujjayinī (17) 253
Measures of the earth etc. (18-19) 253
Visibility of the Sun (20-29) 253
Astronomical observation (30-34) 258
Moon’s visibility (35-38) 258
The Planets and their situation (39-41) 259
Lords of the Months, Days and Year (42) 260
Ch.XIV. GRAPHICAL METHODS
AND ASTRONOMICAL
INSTRUMENTS
Introductory 261
Ascensional differences of the zodiacal
signs (1-4) 261
R sine of the Sun’s zenith distance for
the given time (5-6) 264
Right ascensions of the signs (7) 266
Gnomon (8) 267
Local latitude (from the equinoctial
midday shadow) (9-10a) 267
Sun’s longitude (10b-11) 268
V-Shaped yaṣṭi (12) 269
Moon’s longitude (13) 269
Cardinal directions (by means of a
gnomon (14-16) 270
Page
The Celestial Sphere (17-18) 270
Hemispherical Bowl and its use (19-20) 271
Hoop and its use (21-22) 272
Armillary Sphere (23-25) 273
Sun’s northward and southward
journeys (26) 273
Instruments for measuring time (27-28) 274
Local longitude in terms of time (29-30) 274
The Nādī or Ghaṭī (31-32) 275
Conjunction of the Moon with a Star (33) 276
Positions of certain Junction-
Stars (34-37) 277
Digits between the Moon and a Star
in Conjunction and Time of
Conjunction (38) 277
Heliacal Rising of Canopus (39-41) 278
Ch.XV. SECRETS OF ASTRONOMY
Eclipses (1-10) 282
Situation at the Poles (11-16) 286
Weekday (17-18) 288
Day-reckoning (19-29) 289
Ch.XVI. SAURA SIDDHĀNTA :
MEAN PLANETS
Introductory 292
Mean positions of the Star-planets (1-19) 293
VM’s Bīja corrections (10-11) 298
Ch.XVII. SAURA-SIDDHĀNTA :
TRUE PLANETS
Epicycles of the planets (1-3) 300
True planets (4-9) 301
Special work for Mercury
and Venus (10-11a) 307
Retrograde motion (11b) 309
Heliacal rising (12) 309
Latitudes of planets (13-14) 310
Ch.XVIII. VĀS.-PAU. SIDDH.:
RISING AND SETTING OF PLANETS
Venus (1-5) 312
Jupiter (6-13) 316
Saturn (14-20) 322
Mars (21-35) 339