companion star

基本解释

An unseen companion star, nicknamed “Nemesis, ” may be sending comets towards Earth.
一颗看不见的伴星，绰号“复仇者(Nemesis)，可能会导致彗星撞击地球。
Like the nearest black hole, the farthest is also feasting on a normal companion star.
和最近的黑洞一样，这个最远的黑洞也在疯狂吞噬者一颗常见的伴星。
Before the explosion, the companion star may have dumped gas onto VFTS 102, spinning it up to extreme speed the way falling water makes a water wheel turn.
在那颗伴星爆炸之前，其气体可能曾经冲向恒星VFTS 102，致使该恒星的旋转加快到极速，就像落下的水使水轮旋转一样。

More than 60% of the stars in the Milky Way have a companion star around which they orbit.
ECONOMIST: Planetary science: When a world is born The
HR4796A does have one other particularly intriguing feature: a companion star.
ECONOMIST: Dusty genesis