पृष्ठम्:चन्द्रछायागणितम्.djvu/३२

(Correction to daily motion) 6. The daily motion of the equation of the centre-corrected- raoon X R -7- the Last Hypotenuse is the daily motion to the used here, i.e., in the computation of the moon's shadow. 5 Add the avandmsa to this corrected moon, and to the true sun (and use them). (Kalalagna and the Orient ecliptic point) 7. Add to or subtract from the true sun of the time taken, the Reduction to the equator (Red. eq.) at one minute of arc per prd$a as the sun is in the even or odd quadrants. Add or subtract the ascensional difference (cam) of the (latitude of the) place in pranas (taken as minutes of arc) as the sun is (in the six signs) from Libra, (T ula), or Aries (Me fa), respectively. Also add or subtract the prSrias (taken as minutes of arc), of the time gone after sunrise, or to go before sunrise, respectively. 8. This is called Ka~la{lagna). Place this separately (in two places) and find the ascensional difference and the reduction to the equator pertaining to this (in minutes of arc). Add or subtract them in the reverse order (to that mentioned in verse 7), to the Kalalagna. Repeat this operation several times. The exact Orient ecliptic point (Oep) (Lagna or Prag-lagna) is obtained. 5. Though this rate of motion is given as per day, it pertains to the moment taken for computing the shadow.