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A Strange Lonely Planet Found without a Star [merged]

exoplanets rogue planets pso j318.5-22 pan-starrs 1

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#1    Waspie_Dwarf

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Posted 09 October 2013 - 11:02 PM

A Strange Lonely Planet Found without a Star


Institute for Astronomy, University of Hawai‘i said:

An international team of astronomers has discovered an exotic young planet that is not orbiting a star. This free-floating planet, dubbed PSO J318.5-22, is just 80 light-years away from Earth and has a mass only six times that of Jupiter. The planet formed a mere 12 million years ago—a newborn in planet lifetimes.

It was identified from its faint and unique heat signature by the Pan-STARRS 1 (PS1) wide-field survey telescope on Haleakala, Maui. Follow-up observations using other telescopes in Hawaii show that it has properties similar to those of gas-giant planets found orbiting around young stars. And yet PSO J318.5-22 is all by itself, without a host star.

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#2    Wickian

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Posted 09 October 2013 - 11:28 PM

Are they absolutely sure it isn't an alien invasion come to take our star from us?


#3    NightScreams

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Posted 10 October 2013 - 01:02 AM

A planet space ship. Like Unicron!


#4    Imaginarynumber1

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Posted 10 October 2013 - 03:45 AM

View PostNightScreams, on 10 October 2013 - 01:02 AM, said:

A planet space ship. Like Unicron!



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#5    Big Bad Voodoo

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Posted 10 October 2013 - 11:16 PM

http://io9.com/astro...o-su-1443571329

A planet six times more massive than Jupiter has been spotted drifting, cold and alone, eighty light years from Earth. It's a sunless world, and astronomers say it could be the first real example of a free-floating planet to date. But how it got separated from its parent star in the first place remains a mystery.

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