[mrjesse]

Which frame of reference do you want me to use? Be specific so that we can be clear. You seem to like to switch around.

I find your response ridiculous. We're talking about the difference in angle of Pluto's actual+gravitational position and its optical apparent position, as viewed from earth, at a given instant.

Does that answer your need for a frame of reference?

So then what is the gravitational and optical displacement for Jupiter as described in this and my prior post on the topic?

Thanks,

-Jesse

[LeGrande]

I find your response ridiculous. We're talking about the difference in angle of Pluto's actual+gravitational position and its optical apparent position, as viewed from earth, at a given instant.

Does that answer your need for a frame of reference?

No. Which instant are you talking about? When the reflected light leaves Pluto or when the reflected light is seen by your observer on earth. Is your observer (observatory) compensating for all the motions of the earth and pluto or not?

Answer the above questions, but let me ask the question a little differently. Lets say that your observatory is pointing straight up, perpendicular to the surface of the earth, directly at the actual position of Pluto, and lets pretend that Pluto is a flash bulb that flashes at that instant. Will the observer in the observatory see the flash of light at that instant? Knowing that the earth is rotating, and that it is going to take awhile for the flash of light to hit the telescope, how many degrees is the observer going to have to rotate the telescope to see that flash of light?