Gravitational constant - Value of Gravitational Constant

According to the classical definition found in Newton's law of universal gravitation, there is an attractive force between two objects of mass m 1 and m 2 that is proportional to the product of these masses and inversely proportional to the square of the distance between these two objects.

What Is the Gravitational Potential Due to Earth's Gravity at the Satellite? This response notes that Anderson et al.

Henry Cavendish devised this first method in 1798, and since then, it has been modified many times to make it more accurate.

Published values of G derived from high-precision measurements since the 1950s have remained compatible with Heyl 1930 , but within the relative uncertainty of about 0.