WISEPA J171104.60+350036.8
WISE J1711+3500 (also known as WISEPA J171104.60+350036.8) is a binary consisting of a brown dwarf and a planetary-mass object or brown dwarf. Both objects are late T dwarfs.
Source: Wikipedia — WISEPA J171104.60+350036.8 (CC BY-SA 4.0)