Chronological Systems of Gujarat

Author(s): Bharati K Shelat
Publisher: Pranav Shelat

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scientific treatment of the subject, embellished by some original contribution of the author.5.
After Aryabhata I came Varāhmihira who flourished in about S.E.427 (505 A.C.). He has contributed several works to Jyotişa-Pañcasiddhāntikā, Vivāhapaļala, Byhajjātaka, Laghujātaka, Yātrā and Brhatsaṁhitā59. The contents of his Pañcasiddhāntikā are already given above. The other works are rather of astronomical character, and contain no data pertaining to chronology.
Then appear Śrişeņa and Vişnucandra6o, who were predecessors of Brahmagupta61 (550 $.E. = 628 A.C.). Their works are not available to-day.
The next astronomer is Brahmagupta. He wrote his Brāhmasphūța Siddhānta in Ś.E. 550 (628 A.C.) and Khandakhādyaka in S.E. 58762 (665 A.C.). The former work is also known as Brahmasiddhānta. Therein he seems to have improved upon Āryabhatiya. In Khandakhādyaka he has treated several topics of chronology63. Both his works were translated into Arabic64. His methods etc. have been accepted by all the subsequent famous astronomers like Bhāskarācārya65 (1150 A.C.) 58. P.C. Sengupta, "Hindu Astronomy", Cultural Heritage of India,
Vol. III, pp. 361ff. 59. BJ, p. 296 60. Srişeņa and Višņucandra flourished between 427 S.E. (505 A.C.)
and 550 $.E. (628 A.C.) (BJ, p. 299) 61. Brahmagupta's date is 550 S.E. (BJ., pp. 299-300) 62. BJ, pp. 300 f. 63. Ibid., pp. 307 ff... 64. Alberuni translated the works of Brahmagupta into Arabic
(BJ, p. 301) 65. Cultural Heritage of India, Vol. III, p. 372