Transit of sun through the seasonal nakṣatra cycle in the Vṛddha-Gārgīya Jyotiṣa (original) (raw)

2021, Indian Journal of History of Science

Abstract

Vṛddha-Gārgiya-Jyotiṣa (VGJ) is an important text of Indian astral sciences before the astronomy texts of the Common Era. Only a few of the chapters of this text have been edited and published so far. The present paper reports an important study of two sections of this text which describe the transit of sun along the 27 asterisms (nakṣatra) during the six seasons beginning with winter. The first section called Ādityacāra describes each season to be covered by sun travelling 4½ asterisms starting from śraviṣṭhā nakṣatra at the beginning of śiśira ṛtu reckoned as the winter solstice day. The seasons are stated in terms of sun transiting the beginning, middle and end of nine asterisms some of which are made of more than one star. The second section of the text known as Ṛtusvabhāva starts with the vasanta ṛtu and names twelve asterisms through which sun transits in the twelve months of the tropical year. It is shown that the solar transit information in the Ādityacāra and the Ṛtusvabhāva chapters of VGJ can be dated, for minimum observational error, to c 1300 BCE and c 500 BCE respectively.

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References (15)

  1. Abhyankar, K. D. (1991). Misidentification of some Indian nakṣatras. Indian Journal of History of Science 26 (1), 1-10.
  2. Dikshit, S. B. (1969, 1981). Bharataya Jyotish Sastra (in Marathi) Poona (1896). (Transl. RV Vaidya, Vol.1). New Delhi: Government of India Press.
  3. Dwivedi S. (Ed.) (1908). Yājuṣa Jyotiṣa with Commentary of Somākara Śeṣa, Benares.
  4. Geslani, M.; Mak, B.; Yano, M.; and Zysk, K.G. (2017). Garga and early astral science in India. History of Science in South Asia, 5(1), 151-191.
  5. Gondalekhar, P. (2013). The Time Keepers of the Vedas. New Delhi: Manohar.
  6. Iyengar, R. N. (2013). Parāśara Tantra (Ed. Text, Trans. & Notes), Bangalore: Jain University Press.
  7. Iyengar, R. N. (2014). Parāśara's six season solar zodiac and heliacal visibility of star Agastya in 1350-1130 BCE. Indian Journal of History of Science, 49 (3), 223-238.
  8. Iyengar, R. N.; Sudarshan, H.S. and Viswanathan, A. (2019). Vṛddhagārgīya Jyotiṣa (Part1). Tattvadīpaḥ, Journal of Academy of Sanskrit Research, Melkote, 25 (1). 60-81.
  9. Mak, B. (2019). Vedic astral lore and planetary science in the Gārgīyajyotiṣa. History of Science in South Asia, 7, 52-71.
  10. Mankad, D. R. (1951). Puranik Chronology. Anand: Gangajala Prakashan.
  11. Mitchiner, J. E. (1986) Yuga Purāṇa, Kolkata: The Asiatic Society.
  12. Pingree, D. (1971). Census of the Exact Sciences in Sanskrit (Vol.1-4), Philadelphia: American Philosophical society.
  13. Saha, M. N. and Lahiri. (1955). Report of the Calendar Reform Committee, New Delhi: Council for Scientific and Industrial Research.
  14. Sastry T.S. K (Ed.). (1984). Vedā ga Jyotiṣa of Lagadha, Indian Journal of History of Science, 19 (4) Supplement, l-74.
  15. Sen, S. N., and Shukla, K. S. (Ed.) (2000). History of Astronomy in India, 2nd Revised Edition. New Delhi: Indian National Science Academy.