Jun 08, 2017 12:40 PM EDT
Astronomers discovered the Blue A-Type KELT-9 star and a KELT-9b planet that is hotter than most stars. The KELT-9 star is even hotter than its planet, while the KELT-9b has a Jupiter-like feature.
A new planet and star were discovered by astronomers and found to be hotter than most stars. It is said that its hotness is stretching the definition of the word,"planet," EurekAlert reported. The KELT-9b planet is a Jupiter-like planet which is being vaporized by its own star, the KELT-9.
According to NASA, the KELT-9b planet has a dayside temperature higher than 7,800 degrees Fahrenheit or a total of 4,600 Kelvin. Meanwhile, its blue A-type star, the KELT-9 is even hotter of about than the planet which is said to vaporize the planet.
The KELT-9b planet is even found more massive than Jupiter, smaller radius, and only half as dense. However, the radiation provided by the KELT-9 is so extreme that it causes the atmosphere of the KELT-9b planet to be huge.
One side of the KELT-9b planet is facing toward a star while the other side lives in total darkness, it is because the planet is totally dependent on its KELT-9 star. Moreover, intense ultraviolet radiation prevents the existence of molecules like methane, water, and carbon dioxide during its dayside. While on the night side of the planet which is too dark remains a mysterious portion of the KELT-9b and suspected forming only temporary molecules.
On the other hand, the KELT-9 is a star that is on its youngest time of only 300 million years old. But, it is twice as hot and twice as large as the Sun. Professor of Physics and Astronomy at the Vanderbilt University, Nashville, Tennessee, Keivan Stassun said, "KELT-9 radiates so much ultraviolet radiation that it may completely evaporate the planet."
Because of the extreme heat accepted by the KELT-9b planet from its KELT-9 star, the planet is nowhere to be close to habitable. However, though the planet will not be a subject for future migration, Astronomy Professor at the Ohio State University in Columbus Scott Gaudi said that there's still some good reasons to study a hotter planet and star than most of other stars in the universe.
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