Range : 30 million km. ( 18.6 million miles ) P-34628 C The south pole of Neptune is at the center of this polar projection made from five color images taken by Voyager 2 over the course of one Neptunian day-- about 18 hours. Latitude lines are concentric circles, and the outer circle is at about 15 degrees north latitude. Cloud paterns are organized by the planet's rotation and are generally concentric with the pole . Oval storms, which drift in longitude at relative speeds up to 400 miles an hour, disrupt the circular symmetry. The color composite was made from black and white frames through the Voyager narrow angle camera's clear, orange, and green filters.