Zena is not classified as anything - as it does not exist.
The coldest planet in the solar system is Pluto, which is considered as a dwarf planet.
Pluto
Yes and no. It was decided on August 24, 2006 that Pluto be classified a dwarf planet. Because dwarf planets are a subclassification of planet, it would be accurate to call Pluto a planet, in a general setting (bearing in mind, though, that there are 10+ other dwarf planets in our solar system, some larger than Pluto).
Not since 1846, no. Everything discovered in the solar system since then is considered to be at best a dwarf planet.
mercury it was pluto but pluto has been considered as a "dwarf planet"
dwarf is a dwarf planet because it is to small to be in the solar system.,
Pluto is a member of the solar system because any object in the solar system is a member of the solar system. However, if you were asking if Pluto is a planet in the solar system then the answer is no. Pluto used to be a planet but is now considered a dwarf planet.
Pluto was classified as a dwarf planet last 2005. Pluto was too small to be considered as a planet anymore. Its orbit was also not like any of what we call our planets. There are three dwarf planets in our solar system.
The newest planet was the planet Pluto, but that's a "dwarf planet" now. A few more dwarf planets have been found, but no new planets in our solar system.
Actually as far as i know....there are 8 planets in our solar system.......they aremercuryvenusearthmarsjupitersaturnuranusneptunepluto is now not considered as a planet.....it is a dwarf planet...
It was considered a dwarf planet and is the size of some of the moons or smaller in our solar system. They didn't think that a planet that little can be considered apart of our solar system. I know it's stupid. I am against that completely.
Pluto is not outside the Solar System, but it is not considered as a planet anymore because the size of Pluto is so small, the scientists at NASA decided to call it a dwarf planet.