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AstroPhysics30 - parallax • Astronomical Unit(AU •...

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Nicolas Copernicus (1473-1543) 1543-”De Revolutionibus Orbium Coelestrom • Heliocentric Model • Sun at Center • All planets revolve about Sun • Moon revolves about Earth • Earth rotates daily, tilted 23.5 0 • Sphere of Stars much further away-no
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Unformatted text preview: parallax • Astronomical Unit (AU) • Model was no more accurate than Ptolemaic model in predicting planetary positions, because it still used perfect circles....
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