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

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

Tools


 

Jump to page:

Table of Contents

  Page 83  



CHAPTER LVI.                               83

my part have no means of arraying this erroneous sen¬
tence in a reasonable shape.

The proper method for the computation of the place Method for
of a star or of a certain degree of a lunar station is this :— the place of

Take its distance from 0° Aries in minutes, and divide dcgree^of
them by 800.    The quotient represents whole stations station.
preceding that station in which the starin question stands.

Then remains to be found the particular place within
the station in question. Now, either star or degree is
simply determined according to the 800 parts of the
station, and reduced by a common denominator, or the
degrees are reduced to minutes, or they are multiplied
by 60 and the product is divided by 800, in which case
the quotient represents that part of the station which
the moon has in that moment already traversed, if the
station is reckoned as -qL.

These methods of computation suit as well the moon
as the planets and other stars. The following, however,
applies exclusively to the moon :—The product of the
multiplication of the remainder (i.e. the portion of the
incomplete lunar station) by 60 is divided by the bhukti
of the moon. The quotient shows how much of the
lunar nakshatra day has elapsed.

The Hindus are very little informed regarding the Table of the
fixed stars. I never came across any one of them who tions taken
knew the single stars of the lunar stations from eye- Khanda-
sight, and was able to point them out to me with his
fingers. I have taken the greatest pains to investigate
this subject, and to settle most of it by all sorts of com¬
parisons, and have recorded the results of my research
in a treatise on the determincttion of the litnctr stations.
Of their theories on this subject I shall mention as
much as I think suitable in the present context. But
before that I shall give the positions of the stations in
longitude and latitude and their numbers, according to
the canon Khctndctkhddyaka, facilitating the study of
the subject by comprehending all details in the follow¬
ing table :—
 

khddyaka.
  Page 83