सिद्धान्तशिरोमणि: गणिताध्याय (भास्कराचार्य - ग्रहगणित, मध्यमाधिकार व स्पष्टाधिकार सटीक)

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Purvāphalguni 12 - 0 north Purvāṣādhā 5 -20 south
Uttarāphalguni 13 0 ,, Uttarāṣādhā 5 - 0 ,,
Hasta 11 - 0 south Sravaṇam 30 - 0 north
Chitrā 1°-45' ,, Abhijit 62 - 0 ,,
Swātī 37°- 0 north Dhaniṣṭha 36 - 0 ,,
Visākhā 1 -20' south Śatabhiṣak 0 -20 south
Anūrādhā 1 -45 ,, Purvābhādrā 24 - 0 north
Jyeṣṭhā 3 -30 ,, Uttarābhādrā 26 - 0 ,,
Mulā 8 -30 ,, Revatī 0 - 0 ,,
(a) These are also what were given by Brahmagupta
and copied by Śrīpati, (b) Bhāskara mentions in the
Golādhyāya "नक्षत्राणां स्फुटा एव स्थिरत्वात् पठिताः शराः, दृक्कर्मणा-
ऽऽयनेनैषां संस्कृताश्च तथा ध्रुवाः" ie. In as much as the stars
are fixed we have given their latitudes and longitudes
rectified. But here, there is a point to be noted as
Bhāskara has put us in a doubt namely that the rectified
latitudes which he speaks of elsewhere under verse (3)
Grahacchāyādhikāra, Gaṇitādhyaya are not exactly the
polar latitudes spoken of here. (Ref. fig. 120). Let ♈MR
be the ecliptic and ♈N be the celes-
tial equator. Let S be a star, k be
the pole of the ecliptic, and p be
the celestial pole. Then ♈R is the
celestial longitude, SR the celestial
latitude which are known as the
Dhruvaka and S'ara (Asphuta-
s'ara). ♈M is the polar longitude
[Fig. 120] and SM the polar latitude. MR
is the arc connoting the Āyana-
Dṛk-Karma correction, so that celestial longitude ± Āyana-
Dṛk-Karma correction = polar longitude (plus or minus
according as the longitude lies in the 2nd and 4th
quadrants or 1st and 3rd quadrants). If the longitude just
equals 0°, 90°, 180° or 270°, the correction of Āyana--Dṛk