The first exoplanet to orbit three suns may have been discovered

 An international team of astrophysicists believe they have discovered an exoplanet orbiting three suns at the same time in the GW Orionis star system , The New York Times reported on September 28. Take this Tatooine. 

The identified exoplanet could be the first in a “  circumtriple  ” system: a world orbiting three stars . The GW Orionis system is located 1,300 light years from Earth. Like many star systems, it is made up of several stars: it is estimated that between 40 and 50% of the stars in the Universe are in binary systems, while 20% are in systems with three or more stars . Exoplanets housed in three-star systems have been spotted before, but none were orbiting all three stars in the system at the same time.

The discovery, announced by the University of Nevada on October 1, 2021, is detailed in the Monthly Notices of the Royal Astronomical Society ( MNRAS ) . To analyze the GW Orionis star system , the researchers used observations from the powerful ALMA radio telescope ( Atacama's Large Millimeter / Submillimeter Antenna Array ) , which is located in northern Chile. For now, astronomers had no direct evidence of the existence of the exoplanet, m ais deformation of the system diskdetected in September 2020 could be created by " a planet massive enough to carve a space in the disc ", according to the team of scientists.

And she wouldn't be alone. " The rupture of the disc must be caused by undetected planets, which would be the first planets in a circumtriple  orbit ," the researchers conclude. At the moment, the lack of direct evidence is too great to support this finding. Further observations are planned to obtain even more conclusive results.

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