Monday, June 4, 2007

"Failed" Star Delights Astronomers

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Astrophysicists have found a star-like object with a surface temperature just one tenth that of the Sun.

The cold object is known as a brown dwarf: a "failed" star that never achieved the mass required to begin nuclear fusion reactions in its core.

This one - called J0034-00 - is thought to have a surface temperature of just 600-700 Kelvin (up to 430C/800F).

It is the coldest solitary brown dwarf ever seen, according to the British team that discovered it.

This find further tests the boundary between high-mass gas planets and the smallest brown dwarfs...

Source : BBC

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