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Unformatted text preview: 7. If you’re viewing the sky from a location at the Earth’s equator, would you see the star Polaris rise and set? 8. If you were at the South Pole on March 21, describe what you would see in terms of the Sun’s motion across the sky. Where would the sun be, and what would it do over the course of the day? 9. Suppose the Earth’s rotation axis were magically changed so that instead of having an axis tilt of 23.5 degrees, it was set to an axis tilt of zero degrees. What would this do to the cycle of the seasons on the Earth? How would this change the relationship between the celestial equator and the ecliptic? How would this change the day/night cycle as seen by an observer at the north or south pole? 10. Polaris is the “North Star”. Why is there no such thing as an “East Star” or a “West Star”? 1...
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This note was uploaded on 11/23/2010 for the course PHYSICS PHYSICS 20 taught by Professor Aaronbarth during the Winter '10 term at UC Irvine.
- Winter '10