binary star

Physically, it refers to two stars with extremely close masses. Because their gravity is very close, they attract each other, rotate around each other and will not separate.

Gemini is the collective name of the two main stars of Gemini-Beihe II and Beihe III.

In sports competitions (usually ball games), there are two excellent players in the same team. These two players are called Gemini, which means they are indispensable, and they also embody the spirit of cooperation in ball games. The more famous ones are called Gemini, such as Walker and Pierce of the NBA Celtics; Zhang He plays for the first team of CBA Beijing.