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Egyptian Astronomy. Thuban will be the pole star again in 2500 CE. Used a 365 day calendar by 2000 BCE Used to determine the annual flooding of the Nile river The Pyramids of Giza are aligned toward the Thuban which use to be the pole star
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Thuban will be the pole star again in 2500 CE • Used a 365 day calendar by 2000 BCE • Used to determine the annual flooding of the Nile river • The Pyramids of Giza are aligned toward the Thuban which use to be the pole star • Temple of Karnak use to align with summer and winter solstice
Ptolemy of Alexandria (90-168 CE) • Came after Alexander the Great’s conquest • Had Greek and Babylonian influences • Followed Selecus in developing a Heliocentric model • Wrote it in the Almagest. • References Greek mathematician Hipparchus