Which statement best describes perigee?
a. the sun's orbit that is closest to the moon
b. the closet point in the moon's orbit to earth
c. the farthest point in the moon's orbit to earth
d. the closest point in earth's orbit of the sun

Use the ratio form of kepler’s third law, = , and the data provided to determine the time it takes mars to orbit the sun. round your answer to the nearest tenth. earth’s orbital period = 1.0 earth year earth’s distance from the sun = 1.0 au mars’s distance from the sun = 1.5 au it takes mars about ⇒ 1.8 earth years to orbit the sun.