At the moment, Planet 9 still a theory. The name having popped up, I checked whether mythology and such seemed to fit the bill, or if my intuition has a bad memory. Alternative names for the same include Melitta, Mylitta and Seira. The planet appears to be typical of Kuiper Belt objects--only much bigger. It won’t be named until scientists can confirm its existence with pictures. The solar system appears to have a new ninth planet. But this celestial find, dubbed “Planet 9,” is still missing something very important: a real name. This places the new planet more or less in the Kuiper Belt, a dark realm beyond Neptune where thousands of small icy bodies orbit the sun. There have been two objects which had been called the ninth planet for decades, then lost the title because the requirements for planet status got stricter.

Its sheer size in relation to the nine known planets means that it can only be classified as a planet itself, Brown says. Melissa The first name that came to mind was Melissa. Its sheer size in relation to the nine known planets means that it can only be classified as a planet itself, Brown says. The planet appears to be typical of Kuiper Belt objects--only much bigger. Planets are traditionally named for mythological Roman gods. Today, two scientists announced evidence that a body nearly the size of Neptune—but as yet unseen—orbits the sun every 15,000 years. well maybe if there's a space body larger than mercury is found, it will be the 9th planet. See also: A large, unknown 9th planet lurks in our solar system, evidence suggests The International Astronomical Union (IAU) is responsible for naming celestial objects that …

The presence of Planet Nine has been hypothesized to …

you just said that Pluto is downgraded, so there's no 9th planet on our solar system, the 9th,10th,11th space body orbiting the sun is not considered planet anymore since its so far away and small. If the predicted world is found, the name must be approved by the International Astronomical Union. Astronomers, however, are still hunting for another possible planet in our solar system, a true ninth planet, after mathematical evidence of its existence was revealed on Jan. 20, 2016. The name used during previous hunts for the long suspected giant, undiscovered object beyond Neptune is "Planet X." Planet Nine is a theoretical, undiscovered giant planet in the mysterious far reaches of our solar system. The planet could have a mass ten times that of Earth’s, and be situated twenty times as far from the sun as Neptune. This places the new planet more or less in the Kuiper Belt, a dark realm beyond Neptune where thousands of small icy bodies orbit the sun.