Light Path Length

The "long" light path (L) from A to B in the gravitational field is easy to calculate if the points are in line with the star.
For the maximum length scale, the scale reduction is 1/(1+T/R) with T=M•G/c². The condition for the measurement: The number of meters that would result if one were to move a wooden meter, placed end to end, from A to B. Thus, according to the "snow globe theory", the length is determined by the integral of the reciprocal of r(B) with respect to R(A). The result is:

This length is invariant, regardless of whether one starts the measurement from A or B. This length is greater than the Euclidean length between A and B, as assumed by A, and smaller than that of B. The scale of A is simply larger than that of B.

Ludwig Resch