A comet has a period of 72.3 years and moves in an elliptical orbit in which its perihelion (closest approach to the Sun) is 0.640 AU. Find the semimajor axis of the comet and an estimate of the comet's maximum distance from the Sun, both in astronomical units. 

Answer rating: 100% (QA)

To solve this problem we can use Keplers third law of planetary motion which states that the square ... View the full answer