Illustration: Planet and moon cross in front of star.

插图：地球和月球在恒星前方交叉。

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It only works if the star in question has a planet, and that planet has a moon, and both bodies cross in front of the star.

它只能如果有问题的恒星有行星，该行星有一个月亮，两个机构中的恒星前方交叉。

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The planet is so close to the star that one side is probably locked facing the star, the same way the moon always shows the same face to the Earth.

该行星靠恒星如此之近，很可能它有一面是永远面对着恒星的，正如月球永远只以一面面对地球。

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But in constructing the first atmospheric model that has the orbital dynamics of a star-planet-moon system fully included, astronomers Duncan Forgan, at the Royal Observatory in Edinburgh, and David Kipping, at the Harvard Smithsonian Center for Astrophysics in Cambridge, turn that idea on its head.

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Kepler-37b is a tad larger than our heavenly dance partner, the Moon, and whizzes round a star much like our Sun, with two larger planets in its system for company.

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Stewart's co-star Robert Pattinson doesn't make our list because he is over 21, but New Moon's Taylor Lautner does.

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