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

550 61. Nakṣatra : A star. Also the time which elapses as the longitude of the Moon increases by 13⅓ degrees starting from the zero point of Aśvini. 62. Nākṣatra-Dina : The time that elapses between two consecutive risings of a star. 63. Nākṣatra-māsa : The time taken by the Moon to go from Aśvini again to Aśvini. 64. Natakāla : Hour angle measured in ghaṭis. 65. Natāṁśajyā : Hindu sine of the Zenith distance. 66. Nati : Parallax in latitude. 67. Nīcoccavṛtta : Epicycle. 68. Parama-Antyā : The Antyā when the celestial body is at the point of intersection of the celestial equator and the meridian or what is the same at the point of culmination. 69. Paramakrānti : Obliquity of the ecliptic taken by the Hindu astronomers to be 24°. 70. Pāta : The point of time when the declinations of the Sun and the Moon are equal and of the same sign or opposite sign. Also it means the point of intersection of two great circles. 71. Prācī : East point. 72. Prācyaparā : East-west line. 73. Prativṛtta : The circle in which the planet moves and whose centre is at a distance from the centre of the Kakṣāmaṇḍala or the orbit of the mean planet. This is the same as the orbit of the the true planet supposed to be a circle.