{"id":5710,"date":"2026-07-01T12:57:20","date_gmt":"2026-07-01T10:57:20","guid":{"rendered":"https:\/\/stel.asu.cas.cz\/en\/?p=5710"},"modified":"2026-07-01T12:57:21","modified_gmt":"2026-07-01T10:57:21","slug":"the-young-exoplanetary-system-toi-201-a-witness-to-the-turbulent-evolution-of-planets","status":"publish","type":"post","link":"https:\/\/stel.asu.cas.cz\/en\/2026\/07\/01\/the-young-exoplanetary-system-toi-201-a-witness-to-the-turbulent-evolution-of-planets\/","title":{"rendered":"The Young Exoplanetary System TOI-201 \u2014 A Witness to the Turbulent Evolution of Planets"},"content":{"rendered":"\n

The PLATOSpec spectrograph at the La Silla Observatory contributed, through its observations, to a significant discovery describing a young exoplanetary system consisting of a hot Jupiter, a super-Earth, and a brown dwarf in a distant orbit. The inclination and position of the planets\u2019 orbits, as well as their orientation relative to the brown dwarf, indicate a highly dynamic evolution and provide unique insight into the formation of planetary systems. The research results were presented in the journal Nature<\/em> by an international team led by Mat\u00edas Jones of the European Southern Observatory, in collaboration with Czech teams.<\/p>\n\n\n\n

TOI-201 is a very young star, 1 billion years old, located 365 light-years from the Sun, which hosts two planets. One of the planets is similar to our Jupiter, but orbits TOI-201 once every 53 days. The second, smaller planet\u2014only slightly larger than Earth\u2014orbits this star in 5.8 days. The first planet was discovered in 2019, shortly after the launch of the TESS space observatory. A team led by Czech astronomers operating the PLATOSpec spectrograph helped characterize the second planet. In addition to these two planets, the team detected a transit of the star by another object with an orbital period of 7.9 years. This new object is interesting in that it has a mass equivalent to roughly 16 times that of Jupiter and exhibits the characteristics of a so-called brown dwarf. It is, therefore, an object that did not evolve into a star, nor into a planet. In fact, this is the most distant object ever recorded transiting its star (i.e., passing in front of the star).<\/p>\n\n\n\n

Full text: PR ASU, 30.6.2026, web<\/a> (in Czech)<\/p>\n\n\n\n

Dal\u0161\u00ed informace a kontakty<\/h4>\n\n\n\n