Answer Happy

360° physical diameter angular diameter = 211 distance You might need some of the following measurements: Diameter of Earth: 1.7x107m Diameter of Sun: 1.39x109 m Distance from Earth to Moon: 3.84x108 m Distance from Earth to Sun: 1.51x1011 m Please show your work on these questions, i.e., how you got to your final answer (which numbers are you using, what are you calculating with them, etc.) 1. A. What would the angular diameter of the Earth be as seen from the Sun? (1pt) B. Recall that as we discussed in class, this is related to the parallax or difference in viewing angle to the Sun from opposite sides of the Earth. Based on your answer to part A, what would be the difference in viewing angle to the Sun from opposite sides of the Earth? (1 pt) C. To interpret your answer to part B, imagine that at some instant, at a particular location on Earth, the Sun is exactly on the horizon. At the same instant, at a point on the opposite side of the Earth, the Sun would actually be appear slightly below the horizon by some angular distance. How does that angular distance (from part B) compare with the angular size of the Sun itself, as seen from Earth? (1pt)