Thanks BenLurkin.
Thanks .
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Posted on 12/02/2015 3:07:04 PM PST by BenLurkin
A planet discovered last year sitting at an unusually large distance from its star - 16 times farther than Pluto is from the sun - may have been kicked out of its birthplace close to the star in a process similar to what may have happened early in our own solar system's history.
Images from the Gemini Planet Imager (GPI) in the Chilean Andes and the Hubble Space Telescope show that the star has a lopsided comet belt indicative of a very disturbed solar system, and hinting that the planet interactions that roiled the comets closer to the star might have sent the exoplanet into exile as well.
The planet may even have its own ring of debris that it dragged along with it.
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Such planets are of interest because in its youth, our own solar system may have had planets that were kicked out of the local neighborhood and are no longer among of the eight planets we see today.
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The disturbance could have been caused by a passing star that perturbed the inner planets, or a second massive planet in the system. The GPI team looked for another large planet closer to the star that may have interacted with the exoplanet, but found nothing outside of a Uranus-sized orbit.
(Excerpt) Read more at spacedaily.com ...
Aren’t there two large planet-like objects beyond Pluto: Quaoar and Sedna? They are both larger than Pluto and much further out.
ping
Eris is the largest-known object beyond Pluto, with a diameter of 1850 miles, making it about two-thirds the diameter of Mercury, the smallest of the original 8. Eris takes 560 years for one revolution around the sun. Right now it is back to where it was about the year 1455...18 years before Copernicus was born.
Musta been a very rough “hood”.
The mechanism is accretion and kicking out is not likely
The errant planet was attracted to the mass of the ststem and is likely passing through
Thanks BenLurkin.
Thanks .
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