The barycenter of a binary star system lies between the two stars.

双星系统的质心位于两颗恒星之间。

Is our Sun part of a binary star system ?

我们所处的太阳系是一个双星系统？

Not only is HM Cancri the fastest binary star system every discovered, but it is almost the fastest binary star system possible.

双星HM Cancri 不仅是已经发现的运行最快的双星系统；然而它们几乎又是太空中可能具有的运行最快的双星系统。

The binary star system consists of two white dwarfs—the burnt-out cores of sunlike stars.

该双星系统由两颗白矮星组成——所谓白矮星既是像太阳那样的恒星燃烧殆尽后遗留下来的核心。

The most convincing evidence of black holes comes from research into binary star systems.

有关黑洞的最有说服力的证据来自对双星系的研究。

Astronomers have discovered a new binary star.

天文学家发现了一对新的双子星。

In a binary star system, two stars orbit each other.

双子星系统中，两颗恒星互相绕转。

We observed the binary star pair through the telescope.

我们用望远镜观察到了那对双子星。

This book details the formation process of a binary star.

这本书详细介绍了双子星的形成过程。

Binary star systems are important for studying stellar evolution.

双子星系统对研究恒星演化很重要。