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Unformatted text preview: Greeks knew that we should see stellar parallax if we orbited the Sun but they could not detect it. Parallax Angle Apparent shift of a stars position due to the Earths orbiting of the Sun Parallax angles of the star are so small, that you need a telescope to observe them. The nearest stars are much farther away than the Greeks thought. Stars are so far away that stellar parallax is too small for naked eye to notice Earth does not orbit Sun; it is the center of the universe Unfortunately, with notable exceptions like Aristarchus, the Greeks did not think the stars could be that far away, and therefore rejected the correct explanation (1) Thus setting the stage for the long, historical showdown between Earth-centered and Sun-centered systems....
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- Spring '08