After two years of discussions and disagreements, Pluto, that planet became a dwarf planet, will now be a plutoid. This is how the International Astronomical Union (IAU) has decided to classify celestial bodies like the Trans-formerly the ninth planet in the solar system. According to the IAU celestial objects all small, nearly spherical, orbiting the sun beyond Neptune will be called plutoids. will be recalled that in 2006 the IAU decided to strip Pluto of its status as a planet, and was called a dwarf planet. The IAU is the agency responsible for approving and regulating all the new names and classifications astronomical.
IAU then claimed that a classification was necessary because with the new telescope technology had begun to discover very distant objects similar to or larger than Pluto. Without a new classification, the organization said, with these new discoveries soon textbooks would be talking about 50 or more "planets in the solar system.
Thus, the organization took the historic decision to reclassify the solar system and its eight great words: Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus and Neptune.
As explained by the IAU in order to be defined as plutoids, the bodies of the solar system must have: enough mass to hold its own gravity and the volume of the body has a nearly spherical shape. You also need a minimum amount of light.
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