PSO J318.5−22 is an extrasolar planetary-mass object that does not orbit any star, an analog to directly imaged young gas giants. There is no consensus yet among astronomers whether the object should be referred to as a rogue planet, as a young brown dwarf, or as a sub-brown dwarf.
PSO J318.5−22 is an extrasolar planetary-mass object that does not orbit any star, an analog to directly imaged young gas giants. There is no consensus yet among astronomers whether the object should be referred to as a rogue planet, as a young brown dwarf, or as a sub-brown dwarf.
Source: Wikipedia "PSO J318.5−22" · CC BY-SA 4.0
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