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Everything about Varahamihira totally explained

Daivajna Varāhamihira (Devanagari: वराहमिहिर; 505587), also called Varaha, or Mihira was an Indian astronomer, mathematician, and astrologer born in Ujjain. Varahamihira's picture may be found in the Indian Parliament alongside Aryabhata's, of whom he was a follower. He is considered to be one of the nine jewels (Navaratnas) of the court of legendary king Vikramaditya (thought to be the Gupta emperor Chandragupta II Vikramaditya).

Works

Pancha-Siddhantika

Varahamihira's main work is the book (or Pancha-Siddhantika, "[Treatise] on the Five [Astronomical] Canons) dated ca. 575 CE gives us information about older Indian texts which are now lost. The work is a treatise on mathematical astronomy and it summarises five earlier astronomical treatises, namely the Surya Siddhanta, Romaka Siddhanta, Paulisa Siddhanta, Vasishtha Siddhanta and Paitamaha Siddhantas. It is a compendium of native Indian as well as Hellenistic astronomy (including Greek, Egyptian and Roman elements).
   The 11th century Arabian scholar Alberuni also described the details of "The Five Astronomical Canons":
» "They [theIndians] have 5 Siddhāntas:


   *Sūrya-Siddhānta, ie. the Siddhānta of the Sun, composed by Lāṭa, » *Vasishtha-siddhānta, so called from one of the stars of the Great Bear, composed by Vishnucandra,


   *Pulisa-siddhānta, so called from Paulisa, the Greek, from the city of Saintra, which I suppose to be Alexandria, composed by Pulisa. » *Romaka-siddhānta, so called from the Rūm, ie. the subjects of the Roman Empire, composed by Śrīsheṇa.


   *Brahma-siddhānta, so called from Brahman, composed by Brahmagupta, the son of Jishṇu, from the town of Bhillamāla between Multān and Anhilwāra, 16 yojanas from the latter place."

Brihat-Samhita

Varahamihira's other most important contribution is the encyclopedic Brihat-Samhita.
   Varahamihira also made important contributions to mathematics. He was also an astrologer. He wrote on all the three main branches of Jyotisha astrology:
  • Brihat Jataka - is considered as one the five main treatises on Hindu astrology on horoscopy.
  • Daivaigya Vallabha
  • Laghu Jataka
  • Yoga Yatra
  • Vivaha Patal
  • His son Prithuyasas also contributed in the Hindu astrology; his book "Hora Saara" is a famous book on horoscopy.

    Western influences

    The Romaka Siddhanta ("Doctrine of the Romans") and the Paulisa Siddhanta ("Doctrine of Paul") were two works of Western origin which influenced Varahamihira's thought.
       A comment in the Brihat-Samhita by Varahamihira says: "The Greeks, though impure, must be honored since they were trained in sciences and therein, excelled others....." ("mleccha hi yavanah tesu samyak shastram kdamsthitam/ rsivat te 'p i pujyante kim punar daivavid dvijah" (Brihat-Samhita 2.15)).

    Some important trigonometric results attributed to Varahamihira

    » sin^2 x + cos^2 x = 1 ;!

    » sin x = cosleft(frac = sin^2x

    He not only presented his own observations, but embellished them in attractive poetic and metrical styles. The usage of a large variety of meters is especially evident in his Brihat Jataka and Brihat-Samhita.

    Further Information

    Get more info on 'Varahamihira'.


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