Nicolaus Copernicus

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Nicolaus Copernicus was a Icons-flag-pl.png Polish scientist. He is most notable for being the one who corrected Claudius Ptolemaeus's model of the Solar System. He also published a book, De revolutionibus orbium coelestium. He is the probably among the most famous Polish scientists.

Solar System concept[edit]

Copernicus believed that the Sun was at the center of the Solar System, with the following planets orbiting it:

Mercury, Venus, Earth (orbited by the Moon), Mars, Jupiter, Saturn.

Sirius and the Stars did not orbit the Sun.