|
The ', or ''Jyotiṣavedāṅga'' (Devanagari ) is one of earliest known Indian texts on astronomy and astrology (''Jyotisha''). The extant text is dated to the final centuries BCE,〔Michael Witzel, "Autochthonous Aryans? The Evidence from Old Indian and Iranian Texts"〕 but it may be based on a tradition reaching back to about 700-600 BCE. The text is foundational to Jyotisha, one of the six Vedanga disciplines. It was composed by Lagadha.〔Debiprasad Chattopadhyaya, ''History of Science and Technology in Ancient India'', Firma K.L Mukhopadhyaya (1986), pp. 486-494〕〔Satya Prakash, ''Founders of Sciences in Ancient India'' (part II), Vijay Kumar (1989), p.471〕〔B.S. Yadav & Man Mohan, ''Ancient Indian Leaps into Mathematics'', Birkhäuser (2011), p.78〕〔M. I. Mikhailov & N. S. Mikhailov, ''Key to the Vedas'', Minsk-Vilnius (2005), p.105〕〔Sures Chandra Banerji, ''A Companion to Sanskrit Literature'', Motilal Banarsidass (1989), p. 59〕〔Helaine Selin, ''Encyclopaedia of the History of Science, Technology, and Medicine in Non-Western Cultures'', Kluwer Academic Publishers (1997), p.977〕 ==Textual history== The dating of the ''Vedanga Jyotisha'' is relevant for the dating of the Vedic texts. As Michael Witzel notes: The ''Vedanga Jyotisha'' describes the winter solstice for the period of ca. 1400 BCE. This description has been used to date the ''Vedanga Jyotisha''. According to Michael Witzel, the question is "whether the description as given in the jyotiSa is also the date of the text in which it is transmitted." T. K. S. Sastry and R. Kochhar suppose that the ''Vedanga Jyotisha'' was written in the period that it describes, and therefore propose an early date, between 1370 and 1150 BCE, while David Pingree propose ca. 1180 BCE. The estimation of 1400-1200 BCE has been followed by others, with Subbarayappa adding that the extant form can be possibly from 700-600 BCE. Other authors propose a later composition. Santanu Chakraverti writes that it has been composed after 700 BCE, while Michael Witzel dates it to the last centuries BCE, based on the style of composing. According to Chakraverti, it's description of the winter solstice is correct for ca. 1400 BCE, but not for the time of its composition after 700 BCE. This may be due to the incorporation of late Harappan astronomical knowledge into the Vedic fold, an idea which is also proposed by Subbarayappa. Michael Witzel notes: 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Vedanga Jyotisha」の詳細全文を読む スポンサード リンク
|