Tags: Star.
WISEPA J154151.66-225025.2 (designation is abbreviated to WISE 1541-2250) is a brown dwarf of spectral class Y0.5 located in constellation Libra at approximately 44 light-years from Earth. This object received popular attention when its discovery was announced in 2011 at a distance estimated to be only about 9 light-years which would have made it the closest brown dwarf known. (For really close brown dwarfs see for example Luhman 16 WISE 1506+7027 Epsilon Indi Ba Bb or UGPS 0722-05).
