"So forget Gravity. Until we can agree that: 1. The Sun is *moving* relative to it previous position, 2. Light takes 8.3 minutes to travel from the Sun to the Earth" I thought you had it at 18 seconds...
Aberration of starlight
Displacement of the apparent path of light from a star, resulting in a displacement of the apparent position of the star from its true position; discovered by the English astronomer James Bradley and explained by him in 1729.
"The phenomenon is caused by the orbital motion of the earth; in the same way, vertically falling raindrops appear to fall diagonally when viewed from a moving vehicle. The true path of light from a star to an observer is along the straight line from the star to the observer; but, because of the component of the observer's velocity in a direction perpendicular to the direction to the star, the light appears to be traveling along a path at an angle to the true direction to the star.
"Thus, in order to observe a star the central axis of a telescope must be tilted as much as 20.5 (seconds of arc) from the true direction to the star, the exact amount of the angle depending on the direction to the star relative to the direction of the earth's motion in its orbit. Because of the earth's orbital motion, the stars appear to move in elliptical paths on the celestial sphere. All these ellipses have the same semimajor axis, 20.5 of arc, a value known as the constant of aberration. The tangent of the constant of aberration is equal to the ratio of the earth's orbital speed to the speed of light."
This is all elementary and well understood. Attempting to apply it to the Sun merely shows that you have no understanding of the initial answer: that General Relativty has been shown to completely and fully "null out" the aberration of gravity.
--Boris
"This is all elementary and well understood. Attempting to apply it to the Sun merely shows that you have no understanding of the initial answer: that General Relativty has been shown to completely and fully "null out" the aberration of gravity."
Nonsense. Claiming something doesn't simply make it so.
We know that it takes Light 500 seconds to reach the Earth from the Sun.
The paltry few GR claims regarding Gravity simply state that it is presumed that Gravity travels at Light speed.
Yet if those claims were true, then we would experience an 8.3 minute delay in time from which Gravity left the Sun to reach the Earth.
That delay would permit the Sun to travel 178,000 miles in those 8.3 minutes.
That would mean that the Earth's orbital plane would be centered *not* on the actual location of the Sun, but rather on the location of the Sun from 8.3 minutes back in time, a measurable difference of 178,000 miles.
Yet we do NOT see the orbital plane of the Earth to be mis-centered 178,000 miles away from the Sun's center of mass.
What would explain that observation?
There are two potentially acceptable answers (you are welcome to add a third if you can):
1. The Sun isn't moving relative to *anything*
or
2. Gravity travels so fast that the Sun hasn't moved any significant distance by the time Gravity travels from the Sun to the Earth.