A new study suggests there may be a planet hidden in the Kuiper Belt that's affecting orbits of space objects around it.
Get a daily digest of the latest news in tech, science, and technology, delivered right to your mailbox. Subscribe now.The evidence comes from observing the behavior of objects in the Kuiper Belt.Kuiper Belt
3) Some TNOs had “extremely peculiar orbits”, being so distant as to seem to be almost unattached from the solar system or showed very high orbital inclinations of over 60 degrees. The results could be explained, however, by adding a new planet to the model — a potential Earth-like planet in the outer solar system at an orbit beyond 200 au. This model approximated the crucial properties of the distant Kuiper Belt much more closely. As the scientists write, the model is not perfect, “but it does a good job explaining these intriguing properties, while the model considering only the known planets does not.
“However, “ he wrote, “finding the putative planet would be challenging, as we cannot provide information about a preferred location in the sky to find it.” Also, as their paper shows, “depending on the planet's orbit, it could appear bright near perihelion or faint near aphelion, thus significantly varying visual magnitudes over its complete orbit.”
There’s also an indirect approach that can be taken, according to Lykawka, to provide evidence for the existence of the proposed planet.
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