Astronomers discover a planet so hot that it seems to evaporate

Astronomers discover a planet so hot that it seems to evaporate

An international team of astronomers has discovered a planet much warmer than those already observed by humans. Called KELT-9b, the planet orbits around its star by releasing a cloud of gas, like a comet.

Imagine a planet resembling Jupiter – recently immortalized by the Juno probe – hotter than most stars, and incandescent like a comet, and you will have an idea of ​​what the last discovery Human astronomy.

An international team of researchers, led by astronomers from Ohio State University and the Vanderbilt Private University in Tennessee, said they identified a giant planet, much warmer than those already known to the world, To be human. On June 5, 2017, they published the results of their observations in the journal Nature .

A CLOUD OF GAS, LIKE A COMET

Named KELT-9b, this planet has a temperature of more than 7,800 degrees Fahrenheit , says NASA . The planet orbits KELT-9, a massive star located at 650 light-years of Earth in the constellation Swan. The ultraviolet radiation of this star is so powerful that the planet evaporates to some extent under its brilliance.

KELT-9b is slightly colder than our own sun, at 2,000 degrees Fahrenheit. 2.8 times more massive than Jupiter, the planet is however less dense in half. Indeed, the radiation of its star causes the swelling of its atmosphere, like a balloon , explains the university of Vanderbilt on its site .

ITS ATMOSPHERE IS DIFFERENT FROM ALL THE PLANETS ALREADY OBSERVED

” It is a planet, according to the typical mass-based definitions, but its atmosphere is certainly different from all the other planets we have seen, because of its temperature in the day, ” notes Scott Gaudi, Astronomy at Ohio State University, who participated in the study.

Until astronomy breaks through the secrets of KELT-9b and its burning star, space research also continues to study our own Sun. NASA hopes to send a space probe near the star in 2018 .

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