What phenomenon results when a small body's orbital period is a simple fraction of a larger body's period, leading to cleared-out regions?

Answer

Kirkwood gaps.

When a small body experiences rhythmic gravitational nudges from a larger body at consistent points in its orbit (a resonance), it can dramatically alter its path, leading to gaps like the Kirkwood gaps in the asteroid belt.

What phenomenon results when a small body's orbital period is a simple fraction of a larger body's period, leading to cleared-out regions?

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