Bīrūnī, Muḥammad ibn Aḥmad, Alberuni's India (v. 2)

(London :  Kegan Paul, Trench, Trübner & Co.,  1910.)

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  Page 190  



igo
 

ALBERUNTS INDIA.
 

Another
method for
finding the
samkranti.
 

Reckoning according to the theory of Pulisa, we find
as the length of the solar year 365 days 15' 31'^ 30'^' O"'.
Accordingly, the gunakdra would be 1007, the bhdga-
hdra 800 (i.e. i day 15' 31^^ 30"'o'" are equal to VoV)-

According to Aryabhata, the length of the solar year
is 365 days 15' 31'' is'"- In that case the,^^iwia/iJO-ra is
725 and the bhdgcthdra is 572 (i.e. i day 15' 31'^ i $'" are
equal to -jf |).

Another method for finding the moment of samkrdnti
has been dictated to me by Auliatta (?), the son of Sct-
hdivi (?), and is based on the system of Pulisa.   It is this :

Subtract from the Sakakala 918, multiply the re¬
mainder by 1007, add to the product 79, and divide the
sum by 800. Divide the quotient by 7. The remainder
you get is the basis. What now must for each sign be
added to the basis, as has already been mentioned (ii.
188), is indicated by the following table opposite to each
sign :—
 

Shadaslti-
raukha.
 

The Zodiacal Signs.
 

What mnst be

added to the

Basis.
 

'
The Zodiacal Signs.
 

What must be

added to the

Basis.
 


 

Days.    Ghati.
 

Days.
 

Ghati.
 

Aries .

Taurus

Gremini

Cancer

Leo

Virgo .
 

I

4
0

4
I

4
 

35
33
39
34

I
 

Libra .
Scorpio
Arcitenens .
Capricornus
Amphora    .
Pisces.
 

6
I

2

4
5
0
 

31
23
II
10

34
28
 

Varahamihira maintains in the Pancctsiddhdntiktt
that the shaclasitimitkha is in the same degree pro¬
pitious as the time of sctrhkrdnti for acquiring in it
infinite heavenly reward. This is the moment of the
sun's entering :—-The I Sth degree of Gemini; the 14th
degree of Virgo ; the 26th degree of Arcitenens ; and the
28th degree of Pisces.

The moment of the sun's entering the fixed signs
  Page 190