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

491 From tables, we find θ = 85°-43' which Bhāskara takes to be 85°-45'. Fig. 116 In the wake of this, Bhāskara tries to make amends in the approximate formula prescribed to obtain the Sukla. He prescribes addition of 4°-15' to the longitude of the Moon in the bright half, and subtraction in the dark. In between the moment of conjunction and the moment of dichotomy, he derives the following formula (vide fig. 117). Fig. 117 The deficiency of 4°-15' is had in the form of the angle S₂ E S₁. When the Sun is at S₁ the Moon being at M₁, it