The Sun way back when

“Mikołaj Kopernik (b. Feb. 19, 1473, Toruń, Pol.—d. May 24, 1543, Frauenburg, East Prussia [now Frombork, Pol.]), Polish astronomer who proposed that the planets have the Sun as the fixed point to which their motions are to be referred; that the Earth is a planet which, besides orbiting the Sun annually, also turns once daily on its own axis; and that very slow, long-term changes in the direction of this axis account for the precession of the equinoxes. This representation of the heavens is usually called the heliocentric, or “Sun-centred,” system—derived from the Greek helios, meaning ‘Sun.'”

source: http://www.britannica.com/EBchecked/topic/136591/Nicolaus-Copernicus

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