barycenter

• 指两个或多个天体在引力作用下共同绕其旋转的质量中心。在天文学和物理学中也泛指任何多体系统的质量中心，即系统的质量加权平均位置。

A noun referring to the common center of mass around which two or more celestial bodies revolve.

1. Center of mass in a systemC2formalscientific

   The common center of mass around which two or more celestial bodies orbit.

   质心

   • The Earth and Moon revolve around their barycenter, which lies inside Earth.
   • The barycenter of the Solar System is near the Sun but not at its center.
   • Binary stars orbit a shared barycenter.

   同义词center of gravitycenter of mass