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Alfonso X

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Alfonso X from Spain and the Alfonsine Tables

Alfonso X from Spain and the Alfonsine Tables

Tabea Tietz
On November 23, 1221, Spanish King and astronomer Alfonso X of Castile was born, who encouraged the preparation of revised planetary tables. These “Alfonsine Tables” a revision and improvement of the Ptolemaic tables, were the best available during the Middle Ages. “Had I been present at the Creation, I would have given some useful hints for the better ordering of the universe.” – Alfonso X, after studying Ptolemy’s treatise on astronomy.[10] Alfonso…
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astronomy
The Planetary Tables of Erasmus Reinhold

The Planetary Tables of Erasmus Reinhold

Harald Sack
On October 22, 1511, German astronomer and mathematician Erasmus Reinhold was born. He is considered to be the most influential astronomical pedagogue of his generation. Furthermore, he is best known for his carefully calculated first set of planetary tables applying Copernican theory, published in 1551. Erasmus Reinhold Background Erasmus Reinhold was born and died in Saalfeld, Thuringia, Germany. His father Johannes Reinhold was a tax collector. In 1530 went to Wittenberg to study at…
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