It is what is known as a transiting planet.

这就是所谓的凌日行星。

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In systems with more than one transiting planet, astronomers have another option: transit timing variations.

在不止一颗行星凌星的系统中，天文学家有另外的选择：凌星时刻变化（Transit Timing Variation，TTV）。

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The Kepler data also give a tantalizing hint of a third transiting planet that sits scorchingly close to the star.

开普勒的数据同时暗示，还有第三颗行星，位于非常靠近恒星的位置，几乎要被烤焦了。

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This rippling suggested a series of rings crossing in front of the star in advance of, and then behind, the profile of the transiting planet.

ECONOMIST: Astronomers may have found their first Saturn lookalike