When two or more exoplanets orbit a star, their gravitational forces can cause them to fall into orbital resonance, where their orbital periods are related by simple fractions. This phenomenon can reveal a lot about the planets' masses and orbits.
When two or more exoplanets orbit a star, their gravitational forces can cause them to fall into orbital resonance, where their orbital periods are related by simple fractions. This phenomenon can reveal a lot about the planets' masses and orbits.