is it possible for living beings to inhabit them?
It has been proposed that, with surface temperatures of less than 10,000 Kelvins could harbor a habitable zone at a distance of c. 0.005 to 0.02 AU
White dwarf
It has been proposed that white dwarfs with surface temperatures of less than 10,000 Kelvins could harbor a habitable zone at a distance of c. 0.005 to 0.02 AU that would last upwards of 3 billion years.
which of the following will never undergo fusion in any star White dwarf when was the first time such a star was spotted? 1910 ultimately what happens to such stars? A white dwarf is stable once formed and will continue to cool almost indefinitely, eventually to become a black dwarf can you name a star that is likely to become so? Sirius B
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White dwarf [SEP] Habitability
Another suggested constraint to this idea is the origin of those planets. Leaving aside formation from the accretion disk surrounding the white dwarf, there are two ways a planet could end in a close orbit around stars of this kind: by surviving being engulfed by the star during its red giant phase, and then spiralling inward, or inward migration after the white dwarf has formed. The former case is implausible for low-mass bodies, as they are unlikely to survive being absorbed by their stars. In the latter case, the planets would have to expel so much orbital energy as heat, through tidal interactions with the white dwarf, that they would likely end as uninhabitable embers.