Astronomy Stack Exchange
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Questions tagged [brown-dwarf]

Questions about sub-stellar objects that are like stars but never achieve permanent nuclear fusion because they are too low-mass.

Often called a "failed star", brown dwarfs are sub-stellar objects that never achieve permanent nuclear fusion. They can be up to 80 Jupiter masses, but are still much smaller than the Sun.

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Is there such a thing as a black dwarf

Does such a heavenly body exist called a black dwarf? It would be a Brown dwarf that has cooled to the point it no longer gives off heat or light.
P Pitch
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We are sure that there are no brown dwarfs closer than ______

I don't quite know how to word this question. How close could a brown dwarf be to us and have gone undetected until now? Or maybe, with what probability are we sure that there is no brown dwarf within X light years of the sun? (For different values…
user10250
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What is the largest possible size for a brown dwarf?

What is the largest possible size for a brown dwarf before it has enough mass, capable of sustained fusion, thus becoming a star?
CipherBot
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