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Unformatted text preview: It ran contrary to their sense. If the Earth rotated, then there should be a great wind as we moved through the air. 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 The nearest stars are much farther away than the Greeks thought. So the parallax angles of the star are so small, that you need a telescope to observe them. Possible reasons why stellar parallax was undetectable: 1. Stars are so far away that stellar parallax is too small for naked eye to notice. 2. Earth does not orbit Sun; it is the center of the universe....
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This note was uploaded on 11/28/2011 for the course ASTRO 101 taught by Professor Hartmann,bergin during the Winter '08 term at University of Michigan.
- Winter '08