companion star

基本解釋

An unseen companion star, nicknamed “Nemesis, ” may be sending comets towards Earth.
一顆看不見的伴星，綽號“複仇者(Nemesis)，可能會導致彗星撞擊地球。
Like the nearest black hole, the farthest is also feasting on a normal companion star.
和最近的黑洞一樣，這個最遠的黑洞也在瘋狂吞噬者一顆常見的伴星。
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.
在那顆伴星爆炸之前，其氣躰可能曾經沖曏恒星VFTS 102，致使該恒星的鏇轉加快到極速，就像落下的水使水輪鏇轉一樣。

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