A mysterious exoplanet called HD-207496b It could be in the process of metamorphosis and turn into a waterworld. He is 520 million years Old and existing only 138 light years away away from Earth. this planet 6.1 times crowd and that 2.25 times Earth’s radius.
analysis University of Porto In Portugal under supervision Susanna Barros It indicates that an exoplanet has either a gaseous atmosphere, a global ocean, or a combination of both. Anyway, according to calculations, HD-207496b is not a purely rocky planet. According to researchers, it is less dense than Earth.
hydrogen and helium
More research is needed to learn more about Joe HD-207496b. The planet must be outside the solar system, but it has a gaseous atmosphere hydrogen and helium Available, then, according to the researchers, this condition is only temporary. In 520 million years it could become an ocean world. The gas evaporates due to radiation from its host star. It is also possible that the atmosphere no longer exists and that the outer planet is really a water world.
Researchers are already around 5300 exoplanets Certain. Twice as many unconfirmed candidates. In the future, HD-207496b could help astronomers solve the puzzle of exoplanet detection and clearly identify them as such. It provides an opportunity to study such a young exoplanet before it transforms.
The study was published in the journal Astronomy and Astrophysics Available via arXiv.
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