The term blue dwarf may also refer to the following astronomical objects:

A blue dwarf is a hypothetical class of Wikipedia:star that develops from a Wikipedia:red dwarf star after it has exhausted much of its hydrogen fuel supply. Since red dwarf stars fuse their hydrogen slowly and are fully convective (allowing a larger percentage of their total hydrogen supply to be fused), the universe is currently not old enough for any blue dwarfs to have formed yet. Their existence is predicted based on theoretical models.[1]

Stars increase in Wikipedia:luminosity as they age, and a more luminous star needs to radiate energy more quickly to maintain equilibrium. Stars larger than red dwarfs do this by increasing their size and becoming Wikipedia:red giants with larger surface areas. Rather than expanding, however, red dwarfs with less than 0.25 solar masses are predicted to increase their radiative rate by increasing their surface Wikipedia:temperatures and becoming "bluer". This is because the surface layers of red dwarfs do not become significantly more opaque with increasing temperature.[1]

Blue dwarfs eventually evolve into Wikipedia:white dwarfs once their hydrogen fuel is completely exhausted.[1]



ca:Nan blau (etapa de nan roig) es:Enana azul (etapa) ko:청색 왜성 it:Nana blu (fase evolutiva) ja:青色矮星 pl:Błękitny karzeł pt:Anã azul ru:Голубой карлик sk:Modrý trpaslík fi:Sininen kääpiö

zh:藍矮星 (紅矮星階段)

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