Only if they were aiming at where we are now, which doesn't make sense. They would have to aim the craft at where we are going to be in X years. X being the d

Only if they were aiming at where we are now, which doesn't make sense. They would have to aim the craft at where we are going to be in X years. X being the duration of the voyage. Come to think of it, even if they were aiming directly at where we are now I would assume the light source would still be occulted regularly by everything between us and them.