In the sun’s frame, the gravitational pull on the spaceship from Jupiter was strongest as the spaceship swung behind Jupiter, and this pull accelerated the spaceship in the same direction Jupiter move...In the sun’s frame, the gravitational pull on the spaceship from Jupiter was strongest as the spaceship swung behind Jupiter, and this pull accelerated the spaceship in the same direction Jupiter moves in the orbit, so the spaceship subsequently moves ahead of Jupiter, having gained enough energy to move further out in the solar system.
The reader might like to refer back to Section 2.3, especially the part that deals with the polar Equation to an ellipse, to be reminded of the meanings of the angles θ, ω and v, which, in...The reader might like to refer back to Section 2.3, especially the part that deals with the polar Equation to an ellipse, to be reminded of the meanings of the angles θ, ω and v, which, in an astronomical context, are called, respectively, the argument of latitude, the argument of perihelion and the true anomaly.
