पृष्ठम्:लघुभास्करीयम्.djvu/१२५

विकिस्रोतः तः
Jump to navigation Jump to search
एतत् पृष्ठम् अपरिष्कृतम् अस्ति


52 multiply this by 1800 and divide the product by the asus of rising of the 6* sign, i.e , by 2024. Thus we get 232x1800 =202' or 3"22' approx . 2024 Thus we see that in 14 gla!ऽ 25"10" of the 4" sign, the whole of the 5७ sign and 3°22'of the sixth sign have risen above the horizon of Lucknow. Adding the७e to the Sun's longitude, we get 53°22' as the tropical longitude of the rising point of the ecliptic. A rule for obtaining the time elapsed since sunrise with the help of the tropical longitude of the rising point of the ecliptic and the tropical longitude of the Sun : 20. One who desires to know the time (elapsed after sum rise) obtains that time on adding together, in the reverse order the times of rising at the local place of the signs (and parts thereof, if any) traversed by the horizon-ecliptic point up to the untraversed portion of the Sun's (tropical) sign.! This rule is the converse of the preceding one . A rule for calculating (the Rsine of) the Sun's graः 21. The result obtained on dividing the Rsine of the bhaga of the Sun's (tropical) longitude as multiplied by the Rsine of the Sun's greatest declination, by the Rsine of the c6latitude is known as (the Rsine of ) the Sun's agra.* That is, where x is the Sun's (tropical) longitude, e the Sun's greatest declimation (i.e., the obliguity of the ecliptic), and # the latitude of the local place [For the rationale of this formula, see under stanzas 22-23 below.]] () The term agra, in Hindu astronomy, has been used in two senses : The are of the celestial horizon 1ying between the point where the heavenly body concerned rises. cast point and the