Guardians of the Stars
UGPS J072227.51-054031.2 (designation often abbreviated to UGPS 0722-05) is a brown dwarf of late T type, located approximately 4.1 parsecs (13 light-years) from Earth. The object is roughly the volume of Jupiter, but is estimated to have 5–40 Jupiter masses (MJ). This would make it less massive than ε Indi Ba. Planets have a mass of less than about 13 Jupiter masses. Infrared spectra shows the object contains water vapor and methane and has a surface temperature of approximately 480–560 Kelvin. It could be considered a rogue planet, though technically it is a type of low mass star as it has basic fusion. No other objects exist with it or at least none that have been found yet.