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100
Claudius Ptolemy created a model of the movement of the planets and moons
Created a model of the movement of the planets and moons -
Period: 100 to
Astronomy Timeline
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May 10, 1543
Copernicus decides Sun is center of universe
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Nov 20, 1572
Tycho Brahe observed and recorded a super nova
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Galileo publishes his GaliLIES
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Isaac Newton published his book on Mathematical Principles of Natural History
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Henrietta Leavitt published her paper on period-luminosity
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Edwin Hubble proved that galaxies exist besides our own