ब्राह्मस्फुटसिद्धान्त (ब्रह्मगुप्त - शून्य, कुट्टक, बीजगणित एवं सम्पूर्ण २१ अध्याय सान्वय सटीक)

CHAPTER X
Arabic and Indian
Divisions of the
Zodiac
I It has long been a debated question whether the Indian
and Arabian divisions of the zodiac had a common origin. Sir
William Jones thought that they had not; but Colebrooke holds
a contrary view. The coincidence, in the two systems of division
is so exact that he thinks, it could not be due to chance. Coleb-
rooke has discussed this point in details in one of his Papers entit-
led "On the Indian and Arabian divisions of the zodiac", Asiatic
Researches Vol. ix.. p. 323-376, reproduced in the Miscellaneous
Essays, Vol. II., p. 321-373, 1872.

1. Aśvinī, now the first nakṣatra, but anciently the last
   but one, probably obtained its present situation at the head of
   the asterisms, when the beginning of the zodiac was referred to
   the first degree of Meṣa (the Ram). As measuring a portion of
   the zodiac, it occupies the first 13°20' of Meṣa; and its beginning
   follows immediately after the principal star in the last nakṣatra
   Revatī, reckoned by some exactly, by others nearly, opposite
   to the very conspicuous one, which forms the fourteenth asterism.
   As a constellation, Aśvinī comprises three stars (Aries α, β, γ)
   figured as a horse-head; and the principal, which is also the
   northern one, is stated by all ancient authorities, in 10°N and
   8°E. from the beginning of the Meṣa.
   According to Arabs, the first manzil or lunar mansion is
   entitled Sheraṭan (by Persians, Sheratain), and comprises two
   stars of the third magnitude on the head of Aries. in lat. 6°36'
   and 7°51' N and long. 26°13' and 27°7'. With the addition of a