micheel jack
Joined: 12 Jul 2013 Posts: 10
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Posted: Fri Jul 12, 2013 12:39 pm Post subject: spectroscopic double |
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Each of the three is a spectroscopic double, making the system sextuple. How ironic that one of the "twins" should in fact be made of three sets of twins, Castor certainly the sky's ranking sextuple, double-double-double, star. _________________ castor |
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