... parent stars that allowed astronomers to measure the orbital period and mass of ... to be 70 to 90 times the mass of Earth, speeding around its star every 2.9 days ... no longer just mysterious invisible masses around other stars but real places with ...
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Ссылки http://www.astrosociety.org/edu/publications/tnl/75/uitc75.pdf -- 456.6 Кб -- 02.10.2012 Похожие документы
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