

without a star it's just an asteroid surely?A possible free-floating exoplanet, drifting through interstellar space without a star of its own to orbit, has been discovered a hundred light years from Earth. If confirmed, it will be the first of its kind to be proven to exist - and there may be billions more like it out there.
I suppose it depends on your definition of a planet. The members of the IAU can't even agree on thiswithout a star it's just an asteroid surely?