Luhman 16
Luhman 16 (also designated WISE 1049−5319 or WISE J104915.57−531906.1) is a binary system of two brown dwarfs, located in the southern constellation Vela at a distance of 6.51 light-years (2.00 parsecs) from the Sun. These are the closest-known brown dwarfs and the closest system found since the measurement of the proper motion of Barnard's Star in 1916, and the third-closest-known system to the Sun (after the Alpha Centauri system and Barnard's Star).