Is Sgr A* Image Wrong? // New Voyager-1 Problems // Another Sub-Surface Ocean

So, to "fly around the sun", don't you have to arrange the sail to be nearly aligned with the solar wind, thereby allowing the sun's gravitational influence to exactly compensate for the outward momentum from the sun's rays (both photons and solar wind)?

Isn't it a little more complicated, though? The photons impart momentum (velocity and direction). Isn't the photon's momentum vector pointed directly away from the sun? Call that "away-from-the sun" vector, V. Isn't the entirety of V imparted to the sail? Or does "reflection" from a 45 degree sail end up resolving the vector into 0.707*V directly away from the sun and 0.707*V along a tangent of a circle parallel to the sun's surface. Then depending upon the rotation axis for that specific 45 degree plane you could "steer" along a particular LAT/LON.

Solar sales look pretty neat, but it pops in my mind that you can’t tack through space with that sale. There’s no keel under that spacecraft. So in essence, you can only go downwind. So to me, it doesn’t sound like you can use a sail to return from Mars.