binary star
noun [ C ] uk/ˈbaɪ.nər.i ˌstɑːr/ us/ˈbaɪ.ner.i ˌstɑːr/
联星
a pair of stars that orbit (= follow a curved path around) each other, or one of a pair of stars like this
Like other binary stars, the two appear to be bound by gravity, orbiting around each other. 像其他联星一样，这两颗恒星似乎被引力约束，相互围绕着对方运转。
Hooke discovered in 1664 that Gamma Arietis was a binary star. 胡克在1664年发现白羊座5是一颗联星。
- More examples
- When they collide, they could form a stable binary star, or merge into a single, rapidly spinning white dwarf.
- Paczynski originally made his name studying binary stars - two stars that orbit each other.
- If the stars are close enough to be linked through their gravitational attractions, they constitute a binary star.
- Maybe they only started moving together more recently, after trading partners with another pair of binary stars, a process known as binary exchange.
- They are trying to find out what our solar system might have looked like if the Sun were a binary star.