Our solar system also has one other member, which through recent observation has proved to be a dual planetary system. Pluto and its moon Charon, have an elliptical orbit that takes the pair inside the orbit of Neptune. Due to this more highly elliptical orbit, and the closeness of Pluto to Charon, it is reasonable to assume that this pair was a small white dwarf fragment that may have chipped off the fragment forming the core of Neptune during the 2nd generation supernova, but at a distance from the sun. As such, it shares a near orbital path, but being small in size, has rapidly cooled off. Deprived of the ultra-high speed motion in its core that kept it in a stable orbit, the orbit has begun to decay. The eventual fate of Pluto/Charon will have Charon crashing into Pluto, forming a single planet, which will have an orbit that is more cometary, than planetary. And like all cometary orbits, it will eventually decay, and fall into the sun (or hit another planet).