Dying star causes planets to lose their rhythm

Pamela L. Gay, Ph.D.
2 min readJun 15, 2021

We periodically get to share news stories about solar systems where planets or moons orbit in cool rhythms. In our own solar system, the Galilean Moons of Jupiter have their own syncopated beat, with Ganymede taking the baseline, and orbiting once for every 2 Europa orbits and 4 Io orbits. This kind of a rhythm occurs all over space, and one particular system, HR 8799, recently caught the attention of researchers Dimitri Veras and Sasha Hinkley. Seen today, this system has four known planets that orbit in an 8 to 4 to 2 to 1 resonance around a blue, A-type star.

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Pamela L. Gay, Ph.D.

Astronomer, technologist, & creative focused on using new media to engage people in learning and doing science. Opinions & typos my own.