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Geocentric, Longitude, Latitude, infinite, stars, planets
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heliocentric, 6, mathematician, physician, polyglot, scholar
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nova, instruments, mathematician, comet, eclipse, duel
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astronomer, scientist, sun in center, thermometer, 4 moons, sun spots
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mathematician, planetary motion, orbit, nova, motion
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Hans Lippershey
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calculus, 3 laws, gravity, heliocentric, friction, important
