Astrophysics > 5. Binary and Variable Stars >
Solve problems and analyse information by applying:
- Kepler’s third law
- m1 + m2 are individual masses, r = radius, G = gravitational constant, T = period
- Only gives sum of masses, to get individual:
- m1 = M(r – r1)/r, M = total mass, r = distance to each star, r1 = distance from one star to centre of mass