PSO J318.5-22 is a rogue planet, an extrasolar object of planetary mass that does not appear to have a host star. It is approximately 80 light-years away, and belongs to the Beta Pictoris moving group. The object was discovered in 2013 in images taken by the Pan-STARRS PS1 wide-field telescope.

Radius: 67,967 mi

Discovered: 2013

Detection method: Direct imaging

Discovery site: Pan-STARRS

Temperature: 1160+30; −40 K