2 Jul 1614 Jahr - Kepler's third law published

Beschreibung:

The orbits of any two planets are related in this way:

The square of the quotient of the planets' orbital periods is equal to the cube of the quotient of the plants mean distances from the sun.

[T1/T2]^2 = [R1/R2]^2

Zugefügt zum Band der Zeit:

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