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failed star

   Also found in: Wikipedia, Hutchinson 0.62 sec.
failed star: see brown dwarf brown dwarf, in astronomy, celestial body that is larger than a planet but does not have sufficient mass to convert hydrogen into helium via nuclear fusion as stars do.
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In recent years, Henry's team has also found several near-Earth white dwarfs, which are old, sunlike stars, and failed stars called brown dwarfs.
The body, about eight times as heavy as Jupiter, resides next to a failed star, a brown dwarf dubbed 2M1207 (SN: 5/7/05, p.
Failed stars, also known as brown dwarfs, form in the same way as stars, but they don't shine.
 
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