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  2. Surya Siddhanta - Wikipedia

    en.wikipedia.org/wiki/Surya_Siddhanta

    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

  3. Parameshvara Nambudiri - Wikipedia

    en.wikipedia.org/wiki/Parameshvara_Nambudiri

    Vivarana – Commentary on Surya Siddhanta and Lilāvati; Drgganita – Description of the Drig system (composed in 1431 CE) Goladipika – Spherical geometry and astronomy (composed in 1443 CE) Grahanamandana – Computation of eclipses (Its epoch is 15 July 1411 CE.) Grahanavyakhyadipika – On the rationale of the theory of eclipses

  4. Indian astronomy - Wikipedia

    en.wikipedia.org/wiki/Indian_astronomy

    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 ...

  5. Uttarayana - Wikipedia

    en.wikipedia.org/wiki/Uttarayana

    The Surya Siddhanta bridges this difference by juxtaposing the four solstitial and equinoctial points with four of the twelve boundaries of the rashis. [ 2 ] The complement of Uttarayana is Dakshinayana (the southward movement of the Sun).

  6. Hindu units of time - Wikipedia

    en.wikipedia.org/wiki/Hindu_units_of_time

    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 ।

  7. Makarandasarini - Wikipedia

    en.wikipedia.org/wiki/Makarandasarini

    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.

  8. Varāhamihira - Wikipedia

    en.wikipedia.org/wiki/Varāhamihira

    The Romaka Siddhanta ("The Doctrine of the Romans") and the Paulisa Siddhanta were two works of Western origin which influenced Varāhamihira's thought. The Pauliṣa Siddhānta is often mistakenly thought to be a single work and attributed to Paul of Alexandria (c. 378 CE). [43]

  9. Pancha-siddhantika - Wikipedia

    en.wikipedia.org/wiki/Pancha-Siddhantika

    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]