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1·As an eclipsing binary, it is actually two stars in close orbit around one another.

作为食双星，它实际上是两颗在接近的轨道上互绕的恒星。

2·But dimming can also be caused by an eclipsing binary, a pair of stars in an orbit that appears edge on as seen from Earth so that each star passes in front of the other once per cycle.

但但亮度变暗也可能是由食双星引起的，其从地球上看，两个星球出现在同一个轨道的边缘，因此每一次循环，每一个星球都会经过另一个的前方。

3·Sometimes, however, the system's overall brightness dipped even when the stars were not eclipsing each other-hinting at the presence of a third body orbiting the binary pair.

但有时，即使当系统在没有相互重叠时，这一对恒星的整体亮度也会明显下降——暗示着，还有第三个物体围绕着这一对恒星作轨道运转。