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

44 Comm. The mean Sun and the mean Moon are taken to be in conjunction at the zero-point of the Zodiac. The planetary positions given above are accepted by Bhaskara on the authority of Brahmagupta. The fact that these positions differ from those given by Aryabhata signifies that Brahmagupta observed the True positions in his own time and to obtain those positions by calculation, he must have changed the fundamental constants such as the number of civil days, and sidereal revolutions of planets etc in a Kalpa. Here ends the section known as grahā- nayana.