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Hottest planet discovered

01.02.2020

American scientists have found that on the day side of the planet KELT-9b, temperatures can reach 7800 degrees Fahrenheit (4300 degrees Celsius). This makes it hotter than M stars, and even some K stars.

The planet KELT-9b is a very hot Jupiter, one of several varieties of exoplanets found in our galaxy. It weighs almost 3 times more than Jupiter.

The planet is located at a distance of about 670 light years. The researchers found that the same side of the planet always faces its star. This led to the fact that the hydrogen molecules are split into pieces, and then flow to the night side and are converted again.

"Such a planet is so extreme in temperature that the processes there are different from many other exoplanets," said Megan Mansfield, a graduate student at the University of Chicago and lead author of the study.

The atmosphere of KELT-9b flows from one part of the planet to another. The wind speed on it could reach 60 kilometers per second, but this does not happen due to the decay of hydrogen molecules.

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