Resultado da Busca
20 de jan. de 2015 · Caltech researchers have mathematical evidence for a possible Neptune-sized planet far beyond Pluto, nicknamed \"Planet Nine\" or \"Planet X\". The object has not been observed and its existence is not certain, but it could explain some Kuiper Belt orbits.
Planet X, a hypothetical planet beyond Neptune. Initially employed to account for supposed perturbations (systematic deviations) in the orbits of Uranus and Neptune, belief in its existence ultimately inspired the search for Pluto.
Há 4 dias · The researchers discovered a giant planet with a mass 10 times that of Earth and an orbit 20 times farther from the sun than Neptune. They used mathematical modeling and computer simulations to show how Planet Nine shapes the orbits of distant Kuiper Belt objects.
Planets beyond Neptune. Percival Lowell, originator of the Planet X hypothesis. Following the discovery of the planet Neptune in 1846, there was considerable speculation that another planet might exist beyond its orbit.
2 de abr. de 2024 · In the early years of the search, the mystery world was known as Planet X. In the new millennium, the hunt for a ninth planet was renewed, this time under the name Planet Nine. To this day, a hypothetical ninth planet remains possible, yet elusive. Why might a ninth planet exist?
20 de jan. de 2016 · A century after observatory founder Percival Lowell speculated that a ‘Planet X’ lurks at the fringes of the Solar System, astronomers say that they have the best evidence yet for such a world....
