You are one of the first astronomers in a civilization on Planet B in another solar system. With your unaided eye, you follow planet A in the same solar system and note that it never gets further away than 16 degrees from the star (around which both planets orbit).
What is the ratio of the size of Planet A's semi-major axis
to that of Planet B?
The Attempt at a Solution
I seem to have trouble visualizing this scenario and so I don't know how to approach the problem...