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The Sun Sets in the West and Rises in the East

The Complete History of Science

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The Importance of Ptolemy's Solar Model

Astronomers noticed an important oversight in the alma jest. Ptolemy's solar model had been developed to account for the so-called solar anomaly. When Alma Mun's astronomers checked the position of the solar apogee, they noticed it had moved. This change is real, but also very slow, shifting by around 2 degrees per century.

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