Two years ago the planet Pluto lost its planet status. But only to become a pioneer of a new class of planets. Thanks to him the astronomy have the new term “plutoid” now.

Plutoids are all the small spherical objects, rotating on orbit located beyond the orbit of the Neptune.

The International Astronomical Union has taken such a decision in connection with the discoveries of an increasing number of objects - claimants to the title of the planet. Permanently improving technologies made it possible to open a lot of “planets” like Pluto and without introducing of a new classification soon we could read in astronomy textbooks that the solar system has more than 50 planets.

For example, Ceres (the largest asteroid in the solar system) belongs to dwarf planets. And from now on all dwarf planets outside of Neptune orbit will enter the class of plutoids.

At this moment plutoids are Pluto itself and Eris, whose orbit lies in the Kuiper belt.

So now in our solar system we have 8 planets, a dwarf planet and two plutoids.