Researchers at the Palomar
Observatory, Caltech, USA, have
recently reported the coolest brown
dwarf with the lowest mass. Brown
dwarves are star-like objects which
have a mass less than 0.08 times that
of the sun and are unable to sustain
the thermonuclear reactions in their
Most of their gravitational energy is radiated away relatively rapidly, leaving behind a very dim object. From observations of about 100 stars in a carefully determined sample, scientists have discovered a probable companion of the star GI229, which is a brown dwarf.
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