Manasara Series (I. A Dictionary of Hindu Architecture; II. Indian Architecture according to Manasara-Shilpashastra; III. Manasara on Architecture and Sculpture: Sanskrit Text; IV. Architecture of Manasara: Translation; V. Architecture of Manasara: Illustrations; VI. Hindu Architecture in India and Abroad; VII. An Encyclopaedia of Hindu Architecture) v7.c47.5960

v7.c47.5960

(2) *Sūrya-siddhānta* (Chap. III, vv. 1-51, 2, 3, 4) : Construction of the dial and description of its parts (vv. 1-6) ; the measure of amplitude (v. 7), of the gnomon, hypotenuse and shadow, any two being given to find out the third (v. 8) ; precession of the equinoxes (vv. 9-12) ; the equinoctial shadow (vv. 12-13) ; to find, from the equinoctial shadow the latitude and co-latitude (vv. 13-14) ; the sun's declination being known, to find from a given shadow at noon, his zenith-distance, the latitude, and its sine and cosine (vv. 14-17) ; latitude being given to find the equinoctial shadow (v. 17) ; to find, from the latitude and the sun's zenith, distance at noon, his declination, and his true and mean longitude (vv. 17-30) ; latitude and declination being given, to find the noon-shadow and hypotenuse (vv. 21-22) ; from the sun's declination and the equinoctial shadow to find the measure of the amplitude (vv. 22-23) ; to find from the equinoctial shadow and the measure of amplitude at any given time the base of the shadow (vv. 23-25) ; to find the hypotenuse of the shadow when the sun is upon the prime-vertical (vv. 25-27) ; the sun's declination and the latitude being given, to find the sine and the measure of amplitude (vv. 27-28) ; to find the sine of the altitude and zenith-distance of the sun, when upon the south-east and south-west vertical circles (vv. 28-33) ; to find the corresponding shadow and hypotenuse (vv. 33-34) ; the sun's ascensional difference and the hour-angle being given, to find the sines of his altitude and zenith-distance, and the corresponding shadow and hypotenuse (vv. 34-36) ; to find, by a contrary process, from the shadow of the given time, the sun's altitude and zenith-distance and the hour-angle (vv. 37-39) ; the latitude and the sun's amplitude being known to find his declination and true longitude (vv. 40-41) ; to draw the path described by the extremity of the shadow (vv. 41–42) ; to find arcs of the right and oblique ascension corresponding to the several signs of the ecliptic (vv. 42–45) ; the sun’s longitude and the time being known, to find the point of the ecliptic which is upon the horizon (vv. 46–48) ; the sun’s longitude and the hour-angle being known to find the point of the ecliptic which is upon the meridian (v. 49) ; and the determination of time by means of these data (vv. 50–51).’