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The Surya Siddhanta text has survived since the ancient times, has been the best known and the most referred astronomical text in the Indian tradition. [7] The fourteen chapters of the Surya Siddhanta are as follows, per the much cited Burgess translation: [4] [43] Of the Mean Motions of the Planets [3] On the True Places of the Planets [3]: 53
Greek astronomical texts were translated from Jyotisha Shastra Sanskrit pertaining of Surya Siddhanta and other works by different Indian Scholars. Similar to how most books of philosophy, mathematics in Sanskrit Literature made its way into Greece by trade.
Makarandasāriṇi follows the Saurapakṣa.This is the midnight-epoch system embodied in a recension of the Sūryasiddhānta dating to around the eighth century. [1] This is reflected in the choices of the values of the fundamental parameters, like the values of the celestial bodies’ revolution-numbers and consequent mean velocities.
The text today known as Surya Siddhanta dates to the Gupta period and was received by Aryabhata. The classical era of Indian astronomy begins in the late Gupta era, in the 5th to 6th centuries. The Pañcasiddhāntikā by Varāhamihira (505 CE) approximates the method for determination of the meridian direction from any three positions of the ...
The text provides much of the planetary model information known to the contemporary Indian astronomers, and appears to derive information from earlier sources including Aryabhata's various works (c. 500), Brahmagupta's Brahma-sphuta-siddhanta (c. 628 CE), and Lata-deva's Surya-siddhanta (6th century). [6]
The Surya Siddhanta (1.10–21) describes units of time from a respiration (prana) [50] up to the 100-year lifespan of Brahma (maha-kalpa). [ 51 ] lokānām antakṛt kālaḥ kālo 'nyaḥ kalanātmakaḥ ।
The Surya Siddhantha concisely specifies the coordinates of the twenty-seven Nakshatras. [7]: 211 It is noted above that with the older tradition of 28 Nakshatras each equal segment would subtend 12.85 degrees or 12° 51′. But the 28 Nakshatra were chosen at a time when the Vedic month was recognised as having exactly 30 days.
Similarly, the Paitamaha Siddhanta referred to by Varāhamihira was probably composed in the early 5th century (distinct from an even earlier work of the same name [11]), but the present-day text is a later work that survives as part of a Purana text. [12] Thus, Varāhamihira's text is the only source about these ancient treatises. [13]