Alfonsine Tables

Related Category: Astronomy: General

or Alphonsine tables(ălfŏn´sĭn), 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.