Barycentric Coordinate Time ( TCB ) is based on a reference frame comoving with the barycenter of the Solar system .
Barycentric Coordinate Time ( TCB ) is has been defined for use in calculating motion of bodies within the Solar system .
Barycentric Coordinate Time ( TCB ) is based on a reference frame comoving with the barycenter of the Solar system , and has been defined for use in calculating motion of bodies within the Solar system .