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If gravitational waves come from two massive objects orbiting each other, then does the Earth-Moon system create gravitational waves? What frequency would they have?

Chris Mathews, Plano, Texas
RELATED TOPICS: GRAVITATIONAL WAVES
Earth and Moon
All binary systems — massive bodies orbiting around each other, irrespective of what the bodies are — generate gravitational waves. Roughly speaking, the strength of the gravitational waves depends on the mass of the bodies, the distance from the observer to the binary, and the frequency — or period — of the waves, which is directly related to the orbital period (for a circular orbit, the gravitational wave period is half the orbital period).

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