Homework2 - from Irvine Explain why or why not 6 It’s noon on March 21 You look up and see the sun at the zenith Where are you 7 Textbook p 88 10

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Physics 20A: Introduction to Astronomy Homework assignment #2 Due October 13 1. Textbook, p. 88, #3. 2. Textbook, p. 88, #12. 3. Is it possible for an observer on Earth to see a total lunar eclipse at noon? Explain why or why not. 4. Is it possible for an observer on Earth to see a crescent moon at midnight? Explain why or why not. 5. (a) If you’re viewing the sky from Irvine, why is it that some stars rise and set, but some stars are always above the horizon? (b) From Irvine, can we see any stars that are below (south of) the celestial equator? (In other words: can we see any stars that have negative declinations?) Can we observe the South Celetial Pole
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Unformatted text preview: from Irvine? Explain why or why not. 6. It’s noon on March 21. You look up and see the sun at the zenith. Where are you? 7. Textbook, p. 88, # 10. 8. If you’re living at the south pole, how often would you be able to see a sunrise? 9. If you’re viewing the sky from Irvine, would you ever see the sun at the zenith? Why or why not? 10. Explain why temperatures in December are usually colder than temperatures in June here in Irvine, and why December is usually hotter than June in Australia. 1...
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This homework help was uploaded on 04/16/2008 for the course PHYS 20A taught by Professor Staff during the Winter '02 term at UC Irvine.

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