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Cassini’s laws: Quick Facts

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Photos

Planes of the ecliptic, the lunar equator, and the lunar orbit
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Key People

Gian Domenico Cassini.
Gian Domenico Cassini
French astronomer

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Nicolaus Copernicus. Nicolas Copernicus (1473-1543) Polish astronomer. In 1543 he published, forward proof of a Heliocentric (sun centered) universe. Coloured stipple engraving published London 1802. De revolutionibus orbium coelestium libri vi.
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