vs. 35 ]
57
subtracted from half a circle (i.e., 180°) is known as (the tropical
longitude of) the Sun (according as the Sun is in the first
पृuadrant beginning with the tropical sign Aries or in the second
guadrant beginning with the tropical sign Cancer, i.e., according
as the midday shadow, if falling towards the north, is decreasing
or increasing day to day, and, if falling towards the south, is in
creasing or decreasing day to day). This method is for (the
Sun in) the northern hemisphere. Now we describe the method
for (the Sun in ) the southern hemisphere. (There) the arc
(obtained above) should be added to half a circle or subtracted
from 12 (signs) (i.e , from 360°) (according as the Sun is in the
third quadrant beginning with the tropical sign Libra or in the
fourth quadrant beginning with the tropical sign Copriorm, i.e
according as the midday shadow falling towards the north is
increasing or decreasing day to day).
A consolidated rule for finding the Sun's declimation with the
help of the Sun's meridian Zenith distance and the latitude
34. The sum or difference of the meridian 2ermith distance
and the latitude, according as the (midday) shadow of the gno
m0rn falls towards the south or towards the north, is known as
declimation.
A rule for finding the local latitude with the help of the meridian
2emith distance and declination of the Sun and the direction
of the midday shadow of the gmon01)
35. When the Sun is in the northern hemisphere, the
(meridian) 2emith distance and the declination of the Sun should
be added together (if the midday shadow of the grnommon falls
towards the north). In the contrary case (viz. when the Sun is
in the southern hemisphere), or when the (midday) shadow
falls in the contrary direction (i.e., towards the south), one should
take their difference. The result (in each case) is the latitude. "
C. MBh, i. 17
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