- #36

Martyn Arthur

- 101

- 18

Sorry if I am off track, but I am endeavoring..

My question was "is there a physical reason why all bodies rotating under gravity enjoy the same relationship between T and r".

So every planet, or indeed anybody rotating [indeed moving] with constant acceleration has constant momentum.

The relationship between T and r is thus a determinant of the relationship between the gravitational constant, the body's momentum and the body's distance from the Sun.

This relationship between T and r is

**a constant value**which is obeyed by all bodies rotating with constant acceleration.

Kepler's equations, the third in particular, are a mathematical calculation 'proving' that the relationship is a consequence of the foregoing.

So the relationship is a "universal" constant but one which, unlike the speed of life, has an underlying mathematical explanation.

Thank, hopefully Martyn