﻿OP THE HINDUS. »8l 



Sun's mean motion, - - 59' 8" 



Moon's, 79° 35 



Sun's true motion, - - - 6o 24 



Moon's, 74-3 7 



Moon's latitude, - - - - 48 45 



As the moon's mean motion is to her mean diame- 

 ter, so is her 1 true motion to her true diameter for the 



Y 



time of opposition :A iJ * s f° = 45 1 ll Yojan, which* 

 divided by fifteen, quotes 30' 5" of a great circle. 



As the sun's mean motion is to his mean diameter, 

 so is his true motion to his diameter at the inftant 



Y 



of oppofition e -X|^ = 6639 14 Yojan. 



As the moon's mean motion is to the earth's dia- 

 meter, so is the moon's equated motion to the Suchi, 

 or a fourth number, which muft be taken as the 

 earth's diameter, for the purpose of proportioning its 

 shadow to the moon's distance and apparent diameter 

 j,6ooxt43'7" = 1303 56 Yojan, the SucU. 



Equated diameter of the sun, - - 6639 14 

 Of the earth, - ' 1503 56 



Difference, 5039 14 



As the sun's mean diameter is to the moon's dia- 

 meter, so is the difference above 5039 14, to a fourth 

 number, which deducted from the Suchi, or equated 

 diameter of the earth, leaves the dimeter of the earth's 



y y 



shadow at the moon, 4 * ox 6 !^ 9 * 4 = 372. 7, and 



T4 



