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Thread: "Planet X"/Planet Nine possibility

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    Thumbs up "Planet X"/Planet Nine possibility



    Caltech researchers have found evidence suggesting there may be a "Planet X" deep in the solar system. This hypothetical Neptune-sized planet orbits our sun in a highly elongated orbit far beyond Pluto. The object, which the researchers have nicknamed "Planet Nine," could have a mass about 10 times that of Earth and orbit about 20 times farther from the sun on average than Neptune. It may take between 10,000 and 20,000 Earth years to make one full orbit around the sun.

    "The possibility of a new planet is certainly an exciting one for me as a planetary scientist and for all of us," said Jim Green, director of NASA's Planetary Science Division. "This is not, however, the detection or discovery of a new planet. It's too early to say with certainty there's a so-called Planet X. What we're seeing is an early prediction based on modeling from limited observations. It's the start of a process that could lead to an exciting result."
    http://solarsystem.nasa.gov/planets/planetx

    Planet Nine and the Five Planet Nice Model:

    (PhysOrg.com) -- Just as an expert chess player sacrifices a piece to protect the queen, the solar system may have given up a giant planet and spared the Earth, according to an article recently published in The Astrophysical Journal Letters.
    "We have all sorts of clues about the early evolution of the solar system," says author Dr. David Nesvorny of the Southwest Research Institute. "They come from the analysis of the trans-Neptunian population of small bodies known as the Kuiper Belt, and from the lunar cratering record."
    These clues suggest that the orbits of giant planets were affected by a dynamical instability when the solar system was only about 600 million years old. As a result, the giant planets and smaller bodies scattered away from each other.
    Some small bodies moved into the Kuiper Belt and others traveled inward, producing impacts on the terrestrial planets and the Moon. The giant planets moved as well. Jupiter, for example, scattered most small bodies outward and moved inward.
    This scenario presents a problem, however. Slow changes in Jupiter's orbit, such as the ones expected from interaction with small bodies, would have conveyed too much momentum to the orbits of the terrestrial planets. Stirring up or disrupting the inner solar system and possibly causing the Earth to collide with Mars or Venus.

    "Colleagues suggested a clever way around this problem," says Nesvorny. "They proposed that Jupiter's orbit quickly changed when Jupiter scattered off of Uranus or Neptune during the dynamical instability in the outer solar system." The "jumping-Jupiter" theory, as it is known, is less harmful to the inner solar system, because the orbital coupling between the terrestrial planets and Jupiter is weak if Jupiter jumps.
    Nesvorny conducted thousands of computer simulations of the early solar system to test the jumping-Jupiter theory. He found that, as hoped for, Jupiter did in fact jump by scattering from Uranus or Neptune. When it jumped, however, Uranus or Neptune was knocked out of the solar system. "Something was clearly wrong," he says.
    Motivated by these results, Nesvorny wondered whether the early solar system could have had five giant planets instead of four. By running the simulations with an additional giant planet with mass similar to that of Uranus or Neptune, things suddenly fell in place. One planet was ejected from the solar system by Jupiter, leaving four giant planets behind, and Jupiter jumped, leaving the terrestrial planets undisturbed.
    "The possibility that the solar system had more than four giant planets initially, and ejected some, appears to be conceivable in view of the recent discovery of a large number of free-floating planets in interstellar space, indicating the planet ejection process could be a common occurrence," says Nesvorny.


    Read more at: https://phys.org/news/2011-11-giant-...solar.html#jCp
    https://phys.org/news/2011-11-giant-...ted-solar.html

    Graphical representation of the model:


    Summation of the Five Planet Nice Model:
    The five-planet Nice model is a recent variation of the Nice model that begins with five giant planets, the current four plus an additional ice giant, in a chain of mean-motion resonances. After the resonance chain is broken, the five giant planets undergo a period of planetesimal-driven migration, followed by a gravitational instability similar to that in the original Nice model. During the instability the additional giant planet is scattered inward onto a Jupiter-crossing orbit and is ejected from the Solar System following an encounter with Jupiter. An early Solar System with five giant planets was proposed in 2011 after numerical models indicated that this is more likely to reproduce the current Solar System. [...]
    https://en.wikipedia.org/wiki/Five-planet_Nice_model
    “The most merciful thing in the world, I think, is the inability of the human mind to correlate all its contents. We live on a placid island of ignorance in the midst of black seas of infinity, and it was not meant that we should voyage far. The sciences, each straining in its own direction, have hitherto harmed us little; but some day the piecing together of dissociated knowledge will open up such terrifying vistas of reality, and of our frightful position therein, that we shall either go mad from the revelation or flee from the light into the peace and safety of a new dark age.”

    - H.P. Lovecraft

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    Veteran Member Ryujin's Avatar
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    It is a very interesting subject. It is rumored to pass earth every 3600 years or so and apparently Sumerians witnessed it. Plus, I don't understand how some pseudo-scientists are so confident in ruling out its existence. Even the closest planets have not been explored thoroughly, and yet they say it does not exist while they have not explored beyond Neptune...

    There's no evidence that it does not exist, as long as you you don't explore the whole universe. However there are some signs that it might exist.

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    Wasn't this planet supposed hit us on November 2016?

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    I explained it so many times.... the Earth is FLAT!
    eot

    https://www.theapricity.com/forum/sh...at-Earth-proof

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    Quote Originally Posted by Ryujin View Post
    It is a very interesting subject. It is rumored to pass earth every 3600 years or so and apparently Sumerians witnessed it. Plus, I don't understand how some pseudo-scientists are so confident in ruling out its existence. Even the closest planets have not been explored thoroughly, and yet they say it does not exist while they have not explored beyond Neptune...

    There's no evidence that it does not exist, as long as you you don't explore the whole universe. However there are some signs that it might exist.
    if you have an interest in astronomy/universe; its a very interesting subject to keep up to date with. As far as modern telescopes in terms of where it is in space; currently we are in the Kuiper Belt. A region in space beyond pluto where ejected icy planetismals/objects that coalesced/fused together in our early solar system that makes up the compositions of different planets. The inner solar system consisting mostly rocky planets composed of iron, nickle, etc. The outer solar system being mostly icy and gaseous planets where the sun's ray's aren't strong enough to vaporize/melt these outer compositions. The Kuiper Belt where comets usually reside and get flung into our solar system every couple of hundred to thousands of years along with other planetismal that got flung into deep space where the sun can't reach.



    Quote Originally Posted by Ujku View Post
    Wasn't this planet supposed hit us on November 2016?
    As far as I know, the set orbit for "Planet X" follows an irregular orbit due to being flung into deep space during the solar system's early formation when it was relatively unstable and chaotic compared to now. The reach it has on us may be close, but the trajectory is no where as detrimental as some theorists claim. Its all hype, so I wouldn't really worry about it.
    “The most merciful thing in the world, I think, is the inability of the human mind to correlate all its contents. We live on a placid island of ignorance in the midst of black seas of infinity, and it was not meant that we should voyage far. The sciences, each straining in its own direction, have hitherto harmed us little; but some day the piecing together of dissociated knowledge will open up such terrifying vistas of reality, and of our frightful position therein, that we shall either go mad from the revelation or flee from the light into the peace and safety of a new dark age.”

    - H.P. Lovecraft

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    Nibiru eh? Is it supposed to hit us today or what? lol
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    Quote Originally Posted by Loki View Post
    Nibiru eh? Is it supposed to hit us today or what? lol
    As of right now, there is alot of contentious debates in the scientific community debating this. Haven't really updated on the controversy. Personally, I feel people like to exaggerate such erroneous claims jut like the "2013; end of all days" because the Mayan calendar simply ended on that year, etc.

    Nevertheless, you can follow NASA and see what kind of new research/updates they have on the matter on their website:
    https://solarsystem.nasa.gov/planets/planetx/indepth
    “The most merciful thing in the world, I think, is the inability of the human mind to correlate all its contents. We live on a placid island of ignorance in the midst of black seas of infinity, and it was not meant that we should voyage far. The sciences, each straining in its own direction, have hitherto harmed us little; but some day the piecing together of dissociated knowledge will open up such terrifying vistas of reality, and of our frightful position therein, that we shall either go mad from the revelation or flee from the light into the peace and safety of a new dark age.”

    - H.P. Lovecraft

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    Or it's another frozen gas giant like Uranus or Neptunus; or the other theory supposes that it could be a twin of the sun, but littler, a little star like a red dwarf or a failed star like a brown dwarf, so little and dim that it's hard to find it among countless stars. The twin star theory is not so remote, since in the galaxy 2/3 of the star systems are composed by 2 or even 3 stars that orbit around each other in tens thousands years or more.
    Non Auro, Sed Ferro, Recuperanda Est Patria (Not by Gold, But by Iron, Is the Nation to be Recovered) - Marcus Furius Camillus (Roman General)

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