今天在有道学堂上看到的文章：
In a wide binary, two stars orbit each other even though they're much farther apart than Pluto is from our sun, and the nearest example is easy to find: Alpha Centauri, the sun's closest stellar neighbor, consists of a bright star and a faint one separated by one-fifth of a light-year. The bright "star" is a binary itself (artist's conception shown), so Alpha Centauri actually has three separate suns. Now, computer simulations reported online today in Nature imply that wide binaries often begin life as compact triple stars, two of which join up to kick the third away. If the cast-off star remains gravitationally bound to the other two—as with Alpha Centauri—a wide binary results with the far-off star orbiting the central pair on a highly elliptical path. The key to stability is simple: The far-off star must keep its distance. Perhaps our own star was born with two others but didn't heed this advice: As the other two stars cozied up together, the sun tried to intrude, and the happy couple gave it the boot.

翻译如下：
在远距双星中，尽管两颗恒星的距离比冥王星距离太阳还要远得多，它们仍然做互相环绕运动。很容易找到最近的双星实例：半人马座α系统是距太阳最近的恒星系统，它包含着一颗明亮的恒星和一颗五分之一光年之外的较暗恒星。那颗明亮的恒星本身就是一颗双星系统（见艺术家的概念图），因此半人马座α实际上拥有三颗独立的恒星。今天报道在《自然》杂志在线版上的计算机模拟情况表明，远距双星系统通常一开始都是紧密结合的三颗恒星，其中两颗联合起来将第三颗踢开。如果跟半人马座α系统一样，那颗被踢开的恒星仍然受到另外两颗恒星的引力束缚，那么就形成了远距双星，那颗遥远的恒星在扁状椭圆形的轨道上环绕中心的两颗恒星旋转。稳定性问题也很简单：那颗远方的恒星必须要保持一定的距离。或许，我们的太阳一开始也是伴随着其他两颗恒星诞生的，只是它没有听从保持距离的忠告：当其他两颗恒星舒舒服服地联合在一起时，太阳曾努力地进行侵扰，而那对幸福的恒星将太阳突然抛开。

阿尔法半人马座

三体躺枪

有道词典？我去摇摇看

地球原来也是三体，后来被另两个恒星“踢”开了

小三

原来太阳是个被甩开的…………小三…………
不过，如今的太阳虽然一人守寡，但子孙满堂，不知太阳想到这点会作何感想

诡异的故事

诡异的故事