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Scientists discover rare six-planet system that moves in strange synchrony (phys.org)

submitted 11 months ago by [email protected] to c/[email protected]

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Scientists have discovered a rare sight in a nearby star system: Six planets orbiting their central star in a rhythmic beat. The planets move in an orbital waltz that repeats itself so precisely that it can be readily set to music.

A rare case of an "in sync" gravitational lockstep, the system could offer deep insight into planet formation and evolution.

The analysis, led by UChicago scientist Rafael Luque, was published Nov. 29 in Nature.

"This discovery is going to become a benchmark system to study how sub-Neptunes, the most common type of planets outside of the solar system, form, evolve, what are they made of, and if they possess the right conditions to support the existence of liquid water in their surfaces," said Luque

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[–] [email protected] 6 points 11 months ago

"We think only about one percent of all systems stay in resonance, and even fewer show a chain of planets in such configuration," said Luque. That why HD110067 is special and invites further study: "It shows us the pristine configuration of a planetary system that has survived untouched."

this is amazing, i had not heard about this phenomenon.. they think most planetary systems evolve with resonant orbits among sub-Neptune planets, but those orbits end up getting perturbed by large events.. this one has remained untouched, and it's pretty close to home..