"We determined that an Earth-like planet (m ∼ 1.5–3 M⊕) located on a distant (semimajor axis a ∼ 250–500 au, perihelion q ∼ 200 au) and inclined (i ∼ 30°) orbit can explain three fundamental properties of the distant Kuiper Belt: a prominent population of TNOs with orbits beyond Neptune's gravitational influence (i.e., detached objects with q > 40 au), a significant population of high-i objects (i > 45°), and the existence of some extreme objects with peculiar orbits (e.g., Sedna)."
They're shrinking down planet 9 in size and 'destiny' (orbit)
I thought they would with further analysis of the Kuiper Belt, but now they need to work on tying the Kuiper Belt to the asteroid belt between Mars and Jupiter. I 'predicted' ~30 degree inclination, the Great Pyramid is at the 30th latitude and Cygnus the Swan is located about 28-45 degrees north. I believe people have seen this planet and it rises high into the sky culminating in Cygnus before returning south or below the solar system. But it follows a retrograde orbit, something is responsible for comets orbiting the sun in the opposite direction of the planets. And that something also tilted the planets, it has to be big and close enough to drag Jupiter and the gas giants away from the Sun's equatorial plane.​
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