Download Astronomy in India: A Historical Perspective by Thanu Padmanabhan PDF

By Thanu Padmanabhan

India has a powerful and old culture of astronomy, which seamlessly merges with the present actions in Astronomy and Astrophysics within the state. whereas the more youthful new release of astronomers and scholars are kind of accustomed to the present amenities and the astronomical learn, they may not have an both stable wisdom of the wealthy background of Indian astronomy. this actual quantity, introduced out as part of the Platinum Jubilee Celebrations of Indian nationwide technology Academy, concentrates on chosen elements of old improvement of Indian astronomy within the type of six invited chapters. of the chapters – via Balachandra Rao and M.S. Sriram – disguise historic astronomy and the improvement of calculus within the old Kerela textual content Yuktibhasa. the opposite 4 chapters via B.V. Sreekantan, Siraj Hasan, Govind Swarup and Jayant Narlikar care for the modern heritage of Indian astronomy masking area astronomy, optical astronomy, radio astronomy and advancements in relativistic astrophysics. those chapters, written by means of specialists within the box, offer an in-depth learn of the topic and make this quantity rather unique.

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Example text

5 implies the following formula for the true geocentric longitude, eg : 38 M. S. Sriram . 13) This is the same as Eq. 46 in the Appendix for the geocentric longitude of an interior planet in Kepler's model, if we identify eMS here, with the true heliocentric longitude, eh there, and rs/R in the above geometrical picture with r / R in Kepler's model. Again, it is clear from the figure that eMS is the true heliocentric longitude (if we ignore the difference between the mean sun and the true sun).

The final formula is essentially the same as in earlier texts. ca- vrtta Fig. 3,0 is the Bhagola-madhya or the centre of the earth. The sighra-n{cocca-vrtta or the szghra epicycle is a circle with 0 as the centre, and whose radius, rs is prescribed. The sighroccas, S is located on this circle. It is also stated that szghroccas is the iiditya-madhyama (the mean sun). The manda-nzcocca-vrtta or the manda-epicycle is a circle with the szghroccas as the centre. The mandocca, U is located on this circle.

Press Calcutta 14. Ramasubramanian K, Srinivas MD, and Sriram, MS (May 1994) "Modification of Earlier Indian Planetary Theory by the Kerala astronomers and the Implied Heliocentric Picture of Planetary Motion" Current Science 15. Rao Balachandra S (2005) Indian Mathematics and Astronomy - Some Landmarks -(Rev. ), Bhavan's Gandhi Centre of Science and Human Values Bangalore 16. Rao Balachandra Sand Uma SK (2007-08) Karana-kutuhalam of Bhaskara II - with Eng. , Notes, Examples etc. JHS Vol 42 Nos.

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