Classical Dynamics of Particles and Systems · Problem 8-47

Dynamics of a System of Particles — Marion & Thornton

Physics — Mechanics · central-force-double-stars-different-mass

Problem

Two double stars, one having mass

1.0\ M_{\rm sun}

and the other

3.0\ M_{\rm sun}

, rotate about their common center of mass. Their separation is 6 light years. What is their period of revolution?