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## Homework Statement

A tight pair of stars orbiting with circular paths at a distance a, the weight of the stars is the same: M1=M2=M

What period T and frequency f is the pair circulating? Explain the results generally with G, M, a.

## Homework Equations

Kepler's law M1+M2=a^3/T^2

## The Attempt at a Solution

T^2=a^3/2M

f=1/T