information:classification
WISE 0855−0714 is a sub-brown dwarf 2.28±0.01 parsecs (7.43±0.04 light-years) from Earth, therefore the fourth-closest star or (sub-) brown dwarf system to the Sun, the discovery of which was announced in April 2014 by Kevin Luhman using data from the Wide-field Infrared Survey Explorer (WISE). As of 2014, WISE 0855−0714 has the third-highest proper motion (8,151.6±1.8 mas/yr) after Barnard's Star (10,300 mas/yr) and Kapteyn's Star (8,600 mas/yr) and the fourth-largest parallax (439.0±2.4 mas) of any known star or brown dwarf. It is also the coldest object of its type found in interstellar space, having a temperature of about 285 K.