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When Neptune and Uranus were founded, it seemed as though there were some irregularities with their orbits, and Percival Lowell believe it was due to another planets gravitation pull, and he dubbed it Planet X. When Pluto was found in 1990, they believed this was the planet, however it's gravity was not strong enough to cause the orbit irregularities, and the search for a tenth planet continued for a short time.
Pluto was then declassified as a planet, and now it seems unlikely that 'Planet X' exists. However we now use the term 'Planet X' informally to describe any potential unknown planets in our solar system.
What else can I help you with?
Is 'Planet X' Neptune?
No, Planet X does not exist.
What was planet x?
Planet X was nothing because it does not exist and never did.
Is planet x bigger than the moon?
Planet x does not exist.
What color is Planet x's atmosphere?
Planet X was a hypothetical planet which was searched for after the discovery of planet Neptune. `Planet-X` does not exist.
How far from planet earth will planet x be at closest point?
Planet X does not exist. It was only a theory.
Is Planet X bigger than Jupiter?
Planet X has not been confirmed to exist, so its size is unknown. Jupiter is the largest planet in our solar system, with a radius of about 69,911 km.
Does planet x REALLY exsist?
Planet X does exist but there are about 3 Dwarf planets that have simularities to Plznet X. Planet X has not yet been discovered.
What are the names of Planet x's moon?
It is an imaginary planet with imaginary moons. It does not exist
What is the mass of planet x?
In order to calculate that figure, we need to know the mass of planet x and the radius of its surface. These are particularly difficult to measure in the case of planet x, primarily because it doesn't exist.
Is planet x the Fullmetal Alchemist planet?
No, "Planet X" is not the planet featured in the Fullmetal Alchemist series. The series is set in a fictional world where alchemy is a prominent practice, but it does not specify a particular planet as the story's setting.
What color is planet x?
Planet X has not been observed or discovered yet, so its color is unknown. It is a hypothetical planet that some scientists believe may exist in the outer regions of the solar system, but its characteristics are speculative at this point.
What Does Planet X look like?
Planet X is a hypothetical planet that has not been observed or confirmed by astronomers. It is thought to be a large, distant planet in our solar system, but its appearance is unknown until it is officially discovered and studied.
