Problema Solution

Jupiter Great Red Spot is an enormous hurricane in the southern hemisphere of Jupiter that has existed at least 349 years (it was first seen by Cassini in 1665). it rotates around its center every 6 days. How many rotations has the Great Red Spot made since it was first spotted?

Answer provided by our tutors

1 year = 365 days


1 leap year = 366 days


between 1665 and 2014 there are, with leap years from 1668 = 4*417 till 2012= 4*503 there are:


(2014 - 1665)*365 + (503 - 417 + 1) = 127,472 days


127,472 : 6 = 21,245 rotations.