All Questions
Tagged with kuiper-belt 9th-planet
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If the hypothetical planet had a perihelion around 60 AU, would some consider it being responsible for the Kuiper cliff?
If Planet X had a perihelion around 60 AU and an aphelion in the vicinity of Sedna's aphelion (940 AU), would it be considered to be responsible for both the high eccentricities of TNO's orbits and ...
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How does 2015 RR245 compare to the other KBOs predicting "Planet 9"?
2015 RR245 was recently announced, in a highly eccentric orbit in the KBO. From what I understand, the so called "Planet 9" was predicted because these objects tended to be pointed in a particular ...
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Is Planet Nine shepherding the Kuiper Belt?
Is it possible Planet Nine is shepherding the Kuiper Belt similar to the way Jupiter shepherds the asteroid belt?
I understand that very little is actually known about Planet Nine at this point, but ...
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What type of planetary-mass object would Planet Nine be?
Given that Planet Nine is hypothesized to be 10-20 times the mass of the Earth orbiting the sun some 200-2500 AU out, what kind of planetary-mass object would it be?
Even given that it has apparently ...
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How can the Kuiper belt coexist with the 9th planet?
There are asteroid belts, and there are collections of bodies in resonant orbits, such as Trojans. Aren't these separate things?
The recent evidence for the 9th planet is an alignment in various ...
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Could the trajectories of non-periodic comets be used to infer properties of the 'ninth planet'?
Non-periodic comets are comets which have very long orbital periods (>200 years or more), spending most of their time in the outer solar system.
Planet X, recently revived by researchers at Caltech, ...
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