Great collector's copy on Indian science :
The ARYABHATIYA - A manual of astronomy with the commentary Bhatadîpikâ of Paramâdîçvara.
H.Kern, Leiden - 10th July 1874.
"This first edition of the Aryabhaitiya along with the commentary of Paramâdîçvara is mainly based upon two manuscripts in Malayalim character, one of them belonging to Dr. A. C. BcKNELL, the other once in possession of which and now forming part of the library of the Royal Asiatic Society, London. The latter manuscript dates from A. D. 1820; the former from A. D. 1863, for at the end of it I find the following note in Dr. Burnell's handwriting: „ Copied fr. an Ola M.S. in the Chirakkil Raja library. — Written by Unni Panikar at Calicut 1863."
The Surya Siddhanta is a treatise of Indian astronomy. It is a more than a thousand year old text book of Indian Astronomy. Later Indian mathematicians and astronomers such as Aryabhata and Varahamihira made references to this text. Varahamihira in his Panchasiddhantika contrasts it with four other treatises, besides the Paitamaha Siddhantas (which is more similar to the "classical" Vedanga Jyotisha), the Paulisha and Romaka Siddhantas (directly based on Hellenistic astronomy) and the Vasishta Siddhanta.The work referred to by the title Surya Siddhanta has been repeatedly recast. There may have been an early work under that title dating back to the Buddhist Age of India (3rd century BC).
The work as preserved and edited by Burgess (1858) dates to the Middle Ages. Utpala, a 10th century commentator of Varahamihira, quotes six shlokas of the Surya Siddhanta of his day, not one of which is to be found in the text now known as the Surya Siddhanta. The present Surya Siddhanta may nevertheless be considered a direct descendant of the text available to Varahamihira. This article discusses the text as edited by Burgess. For what evidence we have of the Gupta period text, see Pancha-Siddhantika. It has rules laid down to determine the true motions of the luminaries, which conform to their actual positions in the sky. It gives the locations of several stars other than the lunar nakshatras and treats the calculation of solar eclipses.
Read Book Online : http://www.archive.org/stream/aryabhatiyawithc00arya#page/n3/mode/2up
Download Book : http://ia311012.us.archive.org/2/items/aryabhatiyawithc00arya/aryabhatiyawithc00arya.pdf
Wikipedia : http://en.wikipedia.org/wiki/Surya_Siddhanta
True rationale behind Surya Sidhanta : http://www.new.dli.ernet.in/rawdataupload/upload/insa/INSA_1/20005b5d_183.pdf
fantastic !
Very complicated