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First, take a turntable like people put spices on in their cupboard. Set it up with a cup in the center, and two cups on opposite sides. Punch a small hole in the outer cups half way down and also mount a laser pointer on one of them. You will see that as the water shoots out of the outer cup onto the center cup, it will go straight in just like the laser beam and they will hit the same spot. Now spin the whole works, and behold, the water will lag the laser beam. THat demonstrates if the sun orbited the earth. Now stop the turn table, and hang the center cup on a string, and just spin it! Lo and behold, the water and laser will continue to hit the same spot even though the cup is spinning!

Your experiment needs to add one additional bit of information. Instead of a steady stream of water or photons you need to send individual particles. For example simply repeat the experiment but use a precisely timed simultaneous opening of the water hole and a burst from the laser. Will anything change with the spinning cup example? The won't hit at the same point will they? That is essentially what my original question was, except that I used light and a field, instead of water and light. : )

The pulse of light may reach the center cup sooner then the pulse of water, but they will still both come from exactly the same place!

You were clearly describing angular lag between the sun's gravitational pull and optical apparent position.

-Jesse