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What does if we have a Planet 9?

If a Planet 9 is found, whatever its origin, it will be one of the most exciting space discoveries in history. Since Pluto lost its major planet status in 2006, Neptune has been considered the most distant large planet from the sun in our solar system.

What is the evidence for Planet 9?

The evidence for Planet Nine was unveiled by Caltech scientists Mike Brown (at left, a prolific Kuiper Belt object hunter) and Konstantin Batygin. The duo used mathematical models and computer simulations to map out Planet Nine's orbit after spotting a strange alignment in the orbits of six other Kuiper Belt objects.

How big is Planet 9?

Planet 9 is 4-5 times larger than Earth but about 10 Earth masses. Planet 9 is (possibly) about 39600 miles wide (5 times 7120 miles which is Earth's diameter) so it is about 45% the diameter of Jupiter's 86,881.4 mile diameter.

What is the New Planet 9?

Planet Nine. Planet Nine is a hypothetical planet in the outer region of the Solar System. Its gravitational influence could explain a statistical anomaly in the distribution of orbits of a group of distant trans-Neptunian objects (TNOs) found mostly beyond the Kuiper belt in the scattered disc region.

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