Movement of the Sun and
planets in relationship to the stars have always been a problem. The
ancient Greeks provided a system developed by Ptolemy (90-168),
where the Earth is the center of all movement. The Sun and other stars
revolve around us. This sounds logical, until you really look at the
night time sky.
Nicholas Copernicus
(1473-1543), from what is now Poland, disposed of the Earth as the
Universe's center, by placing the Sun in the central position, with
the planets (including Earth) revolving around the Sun. Copernicus was
the first of many people in the 1600's who started to develop a
scientific way of looking at the skies.
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Copernicus charting planet movement. |