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Notre Système solaire se compose de huit planètes. C’est du moins ce que l’on sait avec certitude aujourd’hui. Mais des indices pointent une neuvième planète qui pourrait toujours se cacher au-delà de l’orbite de Neptune. © Florent DIE, Adobe Stock

New clues indicate the existence of a ninth planet in the solar system

Planet nine. She is being hunted from all sides. Yet it has not yet been noticed. So, does it really exist? Two teams of researchers are now taking a fresh look. Who can finally get it out …

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[EN VIDÉO] The ninth planet is said to be hidden in the solar system
Astronomers believe the ninth planet is far from the solar system. This is, according to them, the specific orbits of many objects in the Khyber belt and is represented by the dwarf planet Cetna beyond Neptune. Calculations give 5 to 10 times the mass of the Earth. It will be an ice giant like Neptune. It is currently in the most elliptical orbit away from the sun. It takes 10,000 to 20,000 years to complete its orbit around the sun.

In recent years, the rumor has been growing. The ninth planet is hidden at our edge The Solar System. What put the flea in the ears Astronomers ? The Eye sockets Details of several Khyber belt products. All assumptions pass there. Even those who argue that it is The ninth planet An asteroid captured by our solar system. Or … a little Black hole!

Simulations of the evolution of our solar system struggle to explain the structure of this tiny corner of the universe. Because they have no information, Researchers University of British Columbia (Canada) and University of Arizona (USA). They suggest a planet the size of ours Earth or Mars May have been born in the middle Gas giantsBefore being pushed well beyond orbit Neptune .

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According to astronomers, there is something strange about the current structure of our solar system. They argue that the outer part of our system is unlikely to consist of four Giant planets Then there is nothing else Dwarf planets . Their simulations show that there really should be planets of other sizes. And an addition Rock planetCreates the most accurate model between giants. At least about the early stages of development of our solar system. Then, it was able to join the dwarf planets. Or in fact, the galaxy must be ejected into space.

A planet betrayed by Transneptunian objects

Researchers hope to learn more TelescopesThe new generation will soon be scanning the sky with unprecedented intensity, University of Oklahoma Astronomers (USA) modelEvolution of our solar system. On its four giant planets. And the millions of ice objects that inhabit the Khyber belt disk. Not less than 4 billion years!

Models covering the ninth planet, distant objects – not closer than 40 to 50 times the distance between the Earth and our Sun – gather in orbits with relatively low inclinations compared to the plane of the solar system. An attribute that indicates the existence of a ninth planet. Because it does not appear in models with eight planets.

So, if you fail to get your hands on this ninth planet that everyone is talking about, looking at this collection of distant objects will be the new indirect evidence of its existence. Here again, we have to wait for the new tools to run. The Heritage study and location (LSSTFor example Vera c. From Rubin’s lab. It will begin observing the sky in 2023, and astronomers will be able to find the most sought-after Trans-Neptuneian objects.