AST-168intermediate

Planetary Migration & Orbital Resonance: Physical Mechanisms

Planetary orbits can change substantially after formation. Migration explains planetary systems that cannot be reproduced by formation at present-day orbital locations alone.

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intermediate45 minFact checked

Planetary Migration & Orbital Resonance: Physical Mechanisms

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AST-167Planetary Migration & Orbital Resonance: Structures & Vocabulary→

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AST-169Planetary Migration & Orbital Resonance: Observation, Measurement & Evidence→

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Planetary orbits can change substantially after formation.

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A planet gravitationally perturbs nearby gas or planetesimals and receives an equal-and-opposite change in orbital angular momentum.

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