... a mass of the system: the central body + a star (m), proceeding from integral of energy, as in a problem of two bodies at ... Here the integral of energy has a following form: V 2 =k 2 ( 21 - ra ) , where k2 =42 (M1+M2) or k2 = 42 M Corresponding ...
... The semi-major axis a and orbital period P are determined, as in other methods, from the energy integral for the two-body problem and Kepler's third law. ...