It's a 'dwarf planet', so still a legitimate choice among the 3 that I posted. I SUSPECTED 'plutocracy', but chose not to be a conclusion jumper but rather a smart ass.
In 2006 the International Astronomical Union (IAU) demoted the much-loved Pluto from its position as the ninth planet from the Sun to one of five “dwarf planets.” The IAU had likely not anticipated the widespread outrage that followed the change in the solar system’s lineup.