To configure the GTE CyberTrust Global Root: Download the GTE CyberTrust Global Root from https://secure.omniroot.com/cacert/CT_Root_CA.crt and save it to a location on your computer. Note the location as you will need it for the install command below.
Because Pluto has an orbit around the Sun which is very elliptical, there are times when it crosses Neptune's orbit and becomes closer to the Sun than Neptune. For 20 years, from 1979 to 1999, Neptune was actually farther from the sun than Pluto. For now, Pluto is back to being farther from the sun. It will be more than 230 years before Neptune and Pluto trade places again. Pluto slips inside of Neptune's orbit once every 248 Earth years for a period of twenty years. 1  Javascript must be enabled to use Cool Cosmos.
Pluto is in some ways a typical Kuiper Belt Object, but in other ways quite exceptional. The Kuiper Belt consists of myriad worlds with average orbital distances of about 30 to 50 AU from the Sun - that is, beyond the orbit of Neptune. Pluto's orbit is within the Kuiper Belt and has a special relationship to Neptune's orbit; namely, Pluto makes two revolutions around the Sun for every three Neptune orbits.