In the present paper, we are concerned by some investigation on circular restricted threebodyproblem (CR3BP), where we assume that the primaries have variable masses and variablecharges. Among the principal tools used in the present study, we cite the well known Meshcherskiitransformation. We have derived the equations of motion and Jacobi integral which differby variation constant k and charge q from the classical restricted three-body problem. Moreexactly, in this paper, we have drawn the equilibrium points, the zero-velocity curves, the periodicorbits, the surfaces and the basins of attraction for the different values of charge. We have foundone equilibrium point when the charge is q = 0.4 and three equilibrium points when its value isq = 0.501. We also have drawn the periodic orbits for these two values of charge and found thatthey are periodic. We have also plotted the zero-velocity surfaces for these two values of chargesand found a tremendous variation in these two surfaces. We notice that the Poincaré surfaces ofsection are shifting away from the origin, when we increase the value of charge. We also got differentsurfaces for the motion of infinitesimal body, with respect to the variations of charge. Thebasins of attraction have been drawn for these two values of charge by using Newton-Raphsoniterative method. We also noticed that by increasing the values of charge, the basins of attractionare shrinking. For the stability of the equilibrium points that we have studied, we found that,among them, one is stable and three others are unstable.
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