The other planets follow patterns that are almost circular; the two axes of PlutoΓÇÖs orbit, however, differ substantially. On average the planet is 39 times further from the Sun than Earth, but at its furthest it is 49 times as far, and its closest just under 30ΓÇöwhich means Pluto is at times closer to the Sun than Neptune. Pluto takes 248 Earth years to complete one revolution around the Sun.
Little is known about PlutoΓÇÖs surface and structure. It appears to have two polar caps consisting of frozen methane and nitrogen. Equatorial regions, which appear to be without this ΓÇ£snow,ΓÇ¥ have a reddish coloring, probably resulting from carbon compounds. Scientists have calculated PlutoΓÇÖs density at about two times that of
