WD 0137−349

It is located about 330 light-years (100 parsecs) away, and appears exceedingly faint with an apparent magnitude of 15.33.

[9] The brown dwarf is known to have survived being engulfed when the primary star was a red giant,[6] because it was relatively massive.

[10] It is thought that the red giant phase of the current white dwarf was shortened from around 100 million years on average, to a few decades—while the brown dwarf was within the red giant, it hastened the expulsion of matter during this phase by rapidly heating gas and accreting a portion of it.

During this phase, drag from the red giant also decreased the orbital speed of the brown dwarf, causing it to fall inwards.

[2] This brown dwarf was also the object with the lowest mass known to have survived being engulfed by a red giant.