4. In our solar system, the constant "k" in Kepler's Third Law is equal to 1 if AU and Earth years are used. Suppose astronomers found a new planet, very close
to the Sun. If the average distance from the planet to the Sun were 1/4 AU, how long would the planet's period be?
O 1/32 of an Earth year
O 1/8 of an Earth year
1/4 of an Earth year
O 1/2 of an Earth year
5. Scientists discover two planets orbiting a distant star. The average distance from the star to Planet