5
Homework #1
•4.   If light takes about eight minutes to travel from the Sun to the Earth, and about forty minutes to travel from the Sun to Jupiter, how many astronomical units (AU) is Jupiter from the Sun?
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•Easiest solution – look it up in table A-13 (5.2 AU)!  Otherwise this is really the same as the moonlight problem.  Jupiter is (40/8 = 5) times farther from the sun than the Earth is.  The Earth is 1 AU from the sun, so Jupiter is about 5 AU from the sun.