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Dumb Question #1251:

What I understand so far (which maybe incomplete or wrong): in any system with multiple objects orbiting a larger body (either star+planets or planet+moons) each body can have an influence on the others, such that large bodies such as stars and big gas giants have a common barycenter for their elliptical orbits (e.g. Sun - Jupiter), and that there can be resonance in the orbits such that the orbital periods are related (2:1; 3:2; 5:1; etc).

What I want to know is:

1. How much of an effect does the eccentricity of any one body's orbit affect the eccentricity of the other bodies' orbits, significantly or insignificantly?

2. In the evolution of a system, does any resonance for the eccentricities of the orbits settle down to an observable pattern (similar to the resonance of the orbit periods)?

TIA

Ian

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# Elliptical Orbits and Resonance of Eccentricities

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