Gravity is strongest at the core of the earth. That’s what we can measure. It’s empirical.
Things fall to earth. It’s measured by dropping things. It gives us the field value for acceleration due to gravity, small g, which is proportional to the square of the distance from the center of the earth.
The practical effect is seen in the way that gravity affects the passage of time. The closer you are to the center of the earth, the slower time passes. This is profoundly significant because the satellites in the GPS Navigation system have clocks which have to be corrected in order to maintain the accuracy of the system.
At an orbital radius of 26,541 km above the center of the earth time passes faster on GPS satellites by 38,640 nanoseconds per day.
– GPS Time Dilation
We aren’t on the sun and can’t make these kind of measurements there.
The mass of the sun is not known and the value used in popular science is derived by assuming heliocentricity. As we have gone to great lengths to point out, heliocentricity can’t be proven.
Gravity is both inherently and empirically Geocentrospheric.
This is not proof of heliocentricity.
Matty's Paradigm 