Could there be a yet-undiscovered super-Earth within our Solar system, out beyond Pluto?
>This Sedna-like object has the most distant perihelion of any known minor planet and the value of its argument of perihelion is close to 0°,” the team writes in their second paper. “This property appears to be shared by almost all known asteroids with semimajor axis greater than 150 au and perihelion greater than 30 au (the extreme trans-Neptunian objects or ETNOs), and this fact has been interpreted as evidence for the existence of a super-Earth at 250 au. In this scenario, a population of stable asteroids may be shepherded by a distant, undiscovered planet larger than the Earth that keeps the value of their argument of perihelion librating around 0° as a result of the Kozai mechanism.”
Even if there is, it's going to be couple of light years away and impossible to reach in our lifetime
>>7655336
If we send a man mission to venture outside our solar system, is it possible to reach 4 light years?
yeah, his corpse will get there
>>7655363
How about one light year
>>7655336
>250 AU
>couple of light years
>>7655336
Traveling at 1% the speed of light, it would take approximately 144 days to travel 250 AU (~0.004 light years)
Lol Pluto at its FARTHEST is just under 50AU, so how can our sun have an Earth sized object orbiting 5 times that distance?
Sounds a little spooky to me
>>7655412
It would be cool if we could travel at a hundredth the speed of light...
>>7655418
Planetary migration
>>7655336
50,000AU is about 0.79 light years.
So 250/50000 would be about .004 Light Years.
Well within our reach. Voyager will be out 250AU in our lifetime
>>7655418
At this point we're speculating on the origin of a speculative body, but the most obvious candidate is that Jupiter threw it out there.
Another possibility is that the theories on the quantity of "wandering" planets are correct, and we just caught a passerby.
>>7655423
How would a ejected planet remain in the solar system? It would need to circularize its orbit in some way.
Claiming there's yet another unseen planet that did that doesn't suffice for an answer.
What are the chances for the sun to capture a planetary mass object?
>>7655449
>"wandering" planets
Venus, "born of Jupiter" (read: captured by) is such a candidate. Velikovsky.
>>7655309
NIBIRU ON ITS WAY FAGGOTS
MARCH 3RD 2016
REPENT
PLANET X
NIBIRU
ANNUNAKI RETURN WHEN
>>7655475
Capture is slingshot (gravity assist) in reverse. Both are a 3-body affair: Sun, Jupiter and a nomad planet for example.
Only two observatories currently use gravitational microlensing techniques to detect 'missing' objects in space, one in New Zealand and one in Chile. What they found has been published: "The Milky Way may be teeming with more than 100,000 free-flying planets for every star — these are worlds that unlike our orderly solar system are not orbiting parent stars."
Nomad Planets Roam Our Galaxy: Monthly Notices of the Royal Astronomical Society
news.discovery.com/space/astronomy/galaxy-filled-with-wandering-planets-study-finds-120224.htm
www.tgdaily.com/space-features/61668-nomad-planets-could-carry-bacterial-life
>>7655555
That would keep it on an orbit that gets close to Jupiter's. You need further interactions to result in an orbit that never gets close to the inner solar system.
That's the whole problem with these Sednoids, their orbit can't be explained by gravitational interaction with the gas giants as is the case with scattered disc objects like Eris.
>>7655555
Cheched
>>7655590
Could it just have a sufficiently long orbital period as to have not come in close since written history?
>>7655596
In that case it would be simple to treat it as a wondering object that was never gravitationally bound the the sun.
>>7655309
There is most likely a mars sized planet in the Oort cloud that we cant see.
There's obviously something fairly large out there. Uranus didn't knock itself sideways.
>>7655638
Uranus is sideways due to an impact event with a protoplanet in the early solar system
Probably a terrestrial world since the giant planets originally formed closer to the sun before migrating outwards.
>>7655692
Would an orbiter be able to find out details?
What if it was a KBO that Neptune knocked out of orbit during the great migration?
>>7655698
It may be unknowable in the end
We know kuiper belt objects have migrated into the inner system, even neptunes biggest moon is a captured KBO.
Even if there was a super earth it's too far to have any kind of meaningful properties
>>7655715
Yeah but if this planet is far enough out and it moves through the Oort cloud it could explain why every 60-70 million years asteroids come flying into the inner solar system.
>>7655555
WOAH
>>7655555
>>7655715
>what is geothermal heating?
What if there's a super Earth with a highly elliptical orbit and its next periapsis is pointed directly at us?
>>7655555
The VLT uses this technique?
