Samaprotiya-yuti (conjunction along secondary to the prime vertical) 58ff Samašanku 155, 275, 389, 623 Sandhyā 562 Sankranti 152,421; of planets 607 Sanku 274ff, 342, 622; locus of Sun's šaňku 395 Sañkutala 274, 283, 623; for sha dow-circle 424 Saturn. See Planets. Seasons, characteristic features 418ff Siddhanta, definition 2; see also 147 Šīghra, epicycles 164f; anomaly 165 Šīghragatiphala 199 Šighraphala 194, 200ff, 217, 227ff, 66 Śighrocca 165, 236,615 Signs, lords of degrees 114; ascensional differences 332, 630; times of rising 335, 630 Sine table 159ff Sirius 427, 589, 590, 592 Sita 562 Six o'clock circle 619 Smrti 144 Solstices 421 Spaşțagati 199 Šravaņa (Altair, or Alpha Aquilae) 279 Srngonnati 559 Stationary points 234 Sthira-raisi 421 Sthityardha 450, 487ff, 503, 507ff Śuddhi 20ff, 66ff Sun, revolutions 6-10; mean longitude 29-30, 32-51, 92-93, 9596, 104, 12; orbit 127; true longitude 185-87, 417-18; true daily motion 188-93; time of transit of disc 269-70; decli nation 305-9, 412-18; altitude 370-71, 386ft, 401; Sun on the prime vertical 386-400; drgiyā 386; agrā 386; true Sun from shadow 40-23; hemise phere and ayana 410-12; distance 436-38; diameter 438-9 Surya-siddhanta 145, 252 Susanā 13 Svadhrti (or Istadhrti) 274, 289, 365, 369, 623 Svāntyā (or Istāntyā) 369 Svati (Arcturus) 279, 581 Taddhirti (= Samadhirti) 275 Tantra 43 l, 432 Terrestrial globe 638ff Time, time-reckoning, measures, divisions 2-3, 11-15, 627-8 Tithi, computation 256, 515ff; true tithi from mean tithi 267; tithi elapsed 417 Tithi-lipta 45ff Tithyanta 458 Triangle-instrument 288 Trijya-vrtta 496 Tripraśna 274ff Ucca 159, 194ff, 615 Udayabhoga 204 Udayajyā 458 Udayalagna 245, 596 Udayāntara correction 187 Udayārka 599 Udayasta-sutra 622 Udayavillagna 542, 554, 597
