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| The Columbia Encyclopedia, Sixth Edition. 2001-07. |
| Alfonsine tables |
or Alphonsine tables ( lf n´s n) (KEY) , compilation of astronomical data tabulating the positions and movements of the planets, completed c.1252 and printed in Venice in 1483. They were a revision and improvement of the Ptolemaic tables and were compiled at Toledo, Spain, by about 50 astronomers assembled for the purpose by Alfonso X of Castile. |
| The Columbia Encyclopedia, Sixth Edition. Copyright © 2007 Columbia University Press. |
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