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Where were Jupiter and Saturn born?



Where were Jupiter and Saturn born?

Carnegie’s Matt Clement led a new work that reveals the original positions of Saturn and Jupiter. Image source: NASA/JPL-Caltech/Space Science Institute.

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7;s Matt Clement led a new work that reveals the original positions of Saturn and Jupiter. These findings give us a deeper understanding of the forces that determine the anomalous structure of the solar system, including the ejection of another planet between Saturn and Uranus, thus ensuring that only small rocky planets (such as the Earth) form inside Jupiter.


When our sun was young, it was surrounded by rotating disks of gas and dust from which these planets were born. The orbits of the early formed planets were initially thought to be dense and circular, but the gravitational interactions between larger objects disrupted the arrangement and caused the giant giant planets to quickly reorganize, forming the structure we see today.

Clement said: “We now know that there are thousands of planetary systems in the Milky Way alone.” “But it turns out that the arrangement of planets in our own solar system is very unusual, so we are using models. Come reverse engineer and replicate its formation. It’s a bit like trying to figure out what happened in a car accident after the crash. The fact-how fast the car is traveling, which direction it is heading, etc.”

Clement and his co-authors-John Chambers of Carnegie, Sean Raymond of the University of Bordeaux, Nathan Keb of the University of Oklahoma, Rogerio of the Southwest Institute De Enno and Rice University’s Andre Izidoro conducted 6,000 simulations of the evolution of the solar system, revealing unexpected details about the original relationship between Jupiter and Saturn.

Where were Jupiter and Saturn born?

It is believed that Jupiter orbits the sun three times for every two Saturn orbits completed during its infancy. However, this arrangement cannot satisfactorily explain the structure of the giant planets we see today. Matt Clement and his co-authors showed that the ratio of two Jupiter orbits to one Saturn orbit more consistently produces results similar to the familiar planetary structure. Image source: NASA

It is believed that Jupiter orbited the sun three times for every two Saturn orbits completed during its infancy. However, this arrangement cannot satisfactorily explain the structure of the giant planets we see today. The research team’s model suggests that the ratio of two Jupiter orbits to one Saturn orbit is more consistent to produce results similar to the familiar planetary structure.

Clement explained: “This shows that our solar system is a bit strange, but this is not always the case.” Clement today introduced the team’s work at a virtual meeting of the Planetary Science Department of the American Astronomical Society. “More importantly, now that we have established the validity of the model, we can use it to help us study the formation of Earth planets, including ourselves, and perhaps enable us to find similar ones elsewhere. The system has the potential to entrust life.”

The model also shows that the positions of Uranus and Neptune are determined by the mass of the Kuiper belt-an icy region on the edge of the solar system, composed of dwarf planets and Pluto’s largest asteroid, and an ice giant planet, which has been Kicked out.


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More information:
Matthew S. Clement and others, “Inborn Eccentricity: Constraints on the Unstable Orbits of Jupiter and Saturn”, Icarus (2020). DOI: 10.1016 / j.icarus.2020.114122

Provided by the Carnegie Institute of Science

Citation: Where were Jupiter and Saturn born? (October 29, 2020) Retrieved from https://phys.org/news/2020-10-jupiter-saturn-born.html October 29, 2020

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