The angle between two lines drawn from a point on Earth to two opposite sides of the Moon make an angle of 0.5 degrees. If you do the same thing for the two opposite ends of Andromeda (as shown above), you find an angle of 5 degrees. Let's assume Andromeda and the Moon are equally far away from our location on Earth (of course that's wrong, but how are we supposed to know?) - then how much larger would the diameter of Andromeda be (as indicated by the arrows at the top), compared to the diameter of the Moon? Pick the answer that's closest to what you get under this hypothetical assumption: A. Equal Diameter B. Twice C. Five times D. Ten times
The angle between two lines drawn from a point on Earth to two opposite sides of the Moon make an angle of 0.5 degrees. If you do the same thing for the two opposite ends of Andromeda (as shown above), you find an angle of 5 degrees. Let's assume Andromeda and the Moon are equally far away from our location on Earth (of course that's wrong, but how are we supposed to know?) - then how much larger would the diameter of Andromeda be (as indicated by the arrows at the top), compared to the diameter of the Moon? Pick the answer that's closest to what you get under this hypothetical assumption: A. Equal Diameter B. Twice C. Five times D. Ten times
Astronomy
1st Edition
ISBN:9781938168284
Author:Andrew Fraknoi; David Morrison; Sidney C. Wolff
Publisher:Andrew Fraknoi; David Morrison; Sidney C. Wolff
Chapter2: Observing The Sky: The Birth Of Astronomy
Section: Chapter Questions
Problem 43E: Suppose you are on a strange planet and observe, at night, that the stars do not rise and set, but...
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The angle between two lines drawn from a point on Earth to two opposite sides of the Moon make an angle of 0.5 degrees.
If you do the same thing for the two opposite ends of Andromeda (as shown above), you find an angle of 5 degrees.
Let's assume Andromeda and the Moon are equally far away from our location on Earth (of course that's wrong, but how are we supposed to know?) -
then how much larger would the diameter of Andromeda be (as indicated by the arrows at the top), compared to the diameter of the Moon?
Pick the answer that's closest to what you get under this hypothetical assumption:
A. Equal Diameter
B. Twice
C. Five times
D. Ten times
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