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CHEOPS finds unique planetary system


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CHEOPS finds unique planetary system
The CHEOPS space telescope detects six planets orbiting the star TOI-178. Five of the planets are in a harmonic rhythm despite very different compositions. This result challenges our understanding of the formation and evolution of planetary systems.
Illustration VLT/eso
Musical notes that sound pleasant together can form a harmony. These notes are usually in a special relationship with each other: when expressed as frequencies, their ratios result in simple fractions, such as four-thirds or three-halves. Similarly, a planetary system can also form a kind of harmony when planets, whose orbital period ratios form simple fractions, regularly attract each other with their gravity. When one planet takes three days to orbit its star and its neighbor takes two days, for example. Using the CHEOPS space telescope, scientists from the University of Geneva, the University of Bern and the National Center of Competence in Research ....

Yann Alibert , Nathan Hara , Adrien Leleu , Kate Isaak , National Center , University Of Geneva , European Space Agency , Habitability Of The University Bern , University Of Bern , Exoplanet Survey Satellite , Research Planet , Research Planets , Transiting Exoplanet Survey Satellite , European Southern Observatory , Paranal Observatory , Scientist Kate Isaak , நாதன் ஹரா , கேட் இஸாக் , தேசிய மையம் , பல்கலைக்கழகம் ஆஃப் ஜிநீவ , பல்கலைக்கழகம் ஆஃப் பெர்ன் , ஆராய்ச்சி கிரகம் , ஆராய்ச்சி கிரகங்கள் , ஐரோப்பிய தெற்கு கண்காணிப்பு , விஞ்ஞானி கேட் இஸாக் ,

5 planets found in unusual rhythmic dance around a star 200 light-years away


5 planets found in unusual rhythmic dance around a star 200 light-years away
Astronomers have discovered a planetary system including six planets and it’s not quite like anything they’ve seen before. The system could challenge the theories scientists have about how planets form and change over time.
Our solar system is just one of many planetary systems, and so far, no two systems are alike. The systems vary in the number and type of planets they contain.
About 200 light-years away from us is the star TOI-178, found in the Sculptor constellation. The research team initially thought there were only two stars orbiting the planet. ....

Yann Alibert , Nathan Hara , Adrien Leleu , European Space Agency Characterizing Exoplanet Satellite , University Of Bern , European Space Agency , European Southern Observatory , நாதன் ஹரா , பல்கலைக்கழகம் ஆஃப் பெர்ன் , ஐரோப்பிய தெற்கு கண்காணிப்பு ,

Rhythmic six-exoplanet system challenges theories of how planets form


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Rhythmic six-exoplanet system challenges theories of how planets form
A planetary system in ‘resonance’, in which multiple planets regularly align, observed by international team including University of Warwick astronomers
New study uses data from Next-Generation Transit Survey (NGTS), run by Warwick with UK and international partners
An international team of astronomers that includes researchers from the University of Warwick have revealed a system consisting of six exoplanets, five of which are locked in a rare rhythm around their central star. The researchers believe the system could provide important clues about how planets, including those in the Solar System, form and evolve. ....

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