Ultra-cool companion helps reveal giant planets ...


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Ultra-cool companion helps reveal giant planets

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Ultra-cool companion helps reveal giant planets

Astronomers have found a brown dwarf that is more than 99% hydrogen and helium.  Described as ultra-cool, it has a temperature of just 400 degrees Celsius and its discovery could be a key step forward in helping astronomers distinguish between brown dwarfs and giant planets.
Source: Ultra-cool companion helps reveal giant planets
Posted May 30, 2012, 12:23:02 PM Logged
Astronomy & Near Earth Phenomena
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