Kelu-1 free-floating M-type brown dwarfs

Kelu-1 is a system of two brown dwarfs of spectral types L2 and L4 located in constellation Hydra at approximately 61 light-years from Earth. It is among the first free-floating later-than-M-type brown dwarfs discovered, and sometimes considered as prototype of L-type brown dwarfs.

Source   SIMBAD (Kelu-1)

Kelu-1 free-floating M-type brown dwarfs.kmz (973 B)