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Unformatted text preview: the stars should appear to change position in the course of the year. parallax arises from the change of Earth's position and depends on the distance to the star. Aristotle himself mentioned the lack of observable stellar parallax as the proof that the Earth is not moving (stationary). Annual parallax is caused by the Earth's yearly orbit around the Sun. 23. C 24. B 25. A 26. A 27. C 28. B (Keplers 2 nd Law) 29. B 30. C 31. C 32. A 33. TRUE 34. B 35. A 36. A 37. C 38. A 39. C: we see countless stars and vast interstellar clouds." "only when we look in directions away from the galactic disk, so that ther are relatively few stars and clouds to block our view." P.28 40. B 41. A 42. C 43. A: they never rise or set but instead make daily counterclockwise circles around the north celestial pole pg. 31 44. FALSE 45. C...
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This note was uploaded on 11/14/2010 for the course PHYS 20 taught by Professor Mobasher during the Fall '08 term at UC Riverside.
- Fall '08