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Astronomer's Discover Sun's 'Sibling'

(Version anglaise seulement)
Scientists say they have found what they’re calling the “first sibling” of the Sun.   Astronomer Ivan Ramirez of the University of Texas led a team which looked at two important “genetic” traits between the two stars.   Born of the same cloud of gas and dust as the Sun some 4.6 billion years ago, HD 162826 is a relative next door neighbor, 110 light-years away in the constellation Hercules.   HD 162826 is not visible to the naked eye, but can be seen with a pair of...

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