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

284 ARABIC AND INDIAN DIVISIONS OF THE ZODIAC and γ Aquilae. According to Arabs, the twenty-third lunar mansion is Balā, which consists of two stars in the left hand of Aquarius. Here again Arabian and Hindu divisions are at variance. 24. Dhaniṣṭhā, the twenty-fourth nakṣatra, is represented by a drum or tabor. It comprises four stars, the westernmost of which is placed in 36° N and according to Brahmagupta, Śiromaṇi and the Sūrya-Siddhānta in 290° E (Grahalāghava gives 286°). This longitude of the circle of declination and the distance of the star on it from the ecliptic indicate the Dolphin : and the four stars are α, β, γ and δ Dolphini. The correspond- ing lunar mansion of Arabs is Sāud, which comprises two stars in Aquarius (β and ζ Aquarii). Here again the two divisions disagree completely. 24. Śatabhiṣak, the twenty fifth nakṣatra, is a cluster of 100 stars figured by a circle. The principal or the brightest has no latitude; or only a third, or at utmost half, a degree of south latitude; and longitude 320°. This best corresponds with λ Aquarii. According to Arabs, the twenty-fifth lunar mansion is known as Akhbiyah which consists of three stars only, placed in the wrist of the right hand of Aquarius. However, it appears from Ulugh Beg's tables, as well as from Mohammad of Tīzīn's, that four stars are assigned to this mansion. The Indian and Arabian systems of division differ considerably but less widely according to some. 26. Pūrva-Bhādrapada, the twenty-sixth nakṣatra, consists of two stars represented by a couch or bed, or else by a double headed figure, one of which is placed in 24° N and 325° or 326° E. The only conspicuous star nearly in that position is the bright star in Pegasus (α Pegasi) and the other may be the nearest considerable star in the same constellation (ζ Pegasi). The twenty-sixth Arabian lunar mansion is Mukaddim, consisting of two brightest stars in Pegasus (α and β). Here the Indian and Arabian divisions show concurrence. 27. Uttar-Bhādrapada, the twenty-seventh nakṣatra, consists of two stars, figured as a twin or a person with double face, or else as a couch. The position of the most northerly of the two