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When Pluto loses planet status, he lost both his name
Back in the year 2006, Pluto was classified as a dwarf planet, much to the dismay of high school students around the world. What you might not know about this event - it is that the former is also the planet lost its name.
In accordance with the decision of the International Astronomical Union, our former ninth planet was assigned the asteroid number 134340. Minor Planet Center, the MAC unit, which is responsible for gathering information about asteroids and comets in our solar system, and also renamed the former satellites of Pluto. Charon, Nix and Hydra were numbered: 134340 I, II 134340, 134340, and III, respectively. There was thus enshrined the status of Pluto - Each asteroid in our solar system is only assigned number, and the world - are named.
via factroom.ru