a system of two stars that revolve around each other under their mutual gravitation
double star的用法和样例:
例句
The brighter of two stars that make up a double star. 双星中较亮的一颗组成两颗双星中的较亮的一颗
A binary star is a double star, consisting of two stars turning round each other. 双星是两颗星,是由相互围绕旋转的两颗星组成。
A double star in the constellation Gemini, the brightest star in the group, approximately 46 light-years from Earth. 北河二双子座中的一颗双星,是这组星中最明亮的一颗,距地球约46光年。