āryabhata and axial rotation of Earth |
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| Authors: | Amartya Kumar Dutta |
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| Institution: | (1) Stat-Math Unit, Indian Statistical Institute, 203, B.T.Road, 700108 Kolkata |
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| Abstract: | Āryabhata (born 476 CE) is regarded as a pioneer of mathematical astronomy in ancient India. In this three-part article, I
shall discuss one important contribution of Āryabhata in astronomy involving the least technical background —the principle
of axial rotation (Part 1) and computations on the sidereal day (Part 2). Portions of 4 verses, pertaining to Earth’s rotation,
from his famous treatise Āryabhatīya will be quoted. In Part 3, I shall give a brief historical account on the concept of
axial rotation of Earth. |
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| Keywords: | Aryabhatiya axial rotation celestial sphere celestial poles celestial equator Earth’ s equator latitude |
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