Astronomy and astrophysics Planetary systems Concept
Planetary migration
Summary
Planetary migration is the slow change of the orbital radius of a planet. It is caused by exchange of angular momentum with the gas disk or the small bodies around it. It explains why giant planets such as hot Jupiters are found very close to their stars, far from where they could have formed. It also explains how planets are captured into orbital resonances with each other.
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| Tag | YMDCDFBTQ1 |
|---|---|
| URI | m2://YMDCDFBTQ1 |
| Kind | concept |
| Writing | W0 stub |
| MSC | 85A04, 70F15 |
| Same as | |
| Changed | 3 November 2026 |
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