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The Alfonsine tables (sometimes spelled Alphonsine tables) were ephemeris (astronomical tables) drawn up at Toledo by order of Alfonso X around 1252 to 1270 to correct anomalies in the Tables of Toledo. They divided the year into 365 days, 5 hours, 49 minutes, 16 seconds. They were originally written in Spanishcitation needed and later translated into Latin. Georg Purbach used the Alfonsine tables for his astronomy book, Theoricae novae planetarum (New Theory of the Planets).
The Alfonsine tables were the most popular astronomical tables in Europe until late in the 16th century, when they were replaced by Erasmus Reinhold's Prutenic Tables of 1551.
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