The United States National Aeronautics and Space Administration (NASA) reports that researchers have received new data on the exoplanet KELT-9 b, located in the constellation Cygnus at a distance of about 620-670 light years from us.
NASA Illustrations
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The named body was discovered in 2016 by the Kilodegree Extremely Little Telescope (KELT) Observatory. The planet is drawn at a distance of 4.5 million km from the parent star. The temperature on the surface of KELT-9 b reaches 4600 K – this is higher than that of some stars of spectral class M.
New data on the exoplanet was transmitted to Earth from the TESS (Transiting Exoplanet Survey Satellite) space observatory. The device is designed to search for planets outside the solar system by the transit method. Observations of the KELT-9 b object were carried out from July 18 to September 11 last year.
According to updated data, KELT-9 b is a gas giant that surpasses Jupiter by 1.8 times in size and 2.9 times in weight. The planet completes one revolution around its star in 36 hours, while it is always turned to the star on one side.
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KELT-9 b receives 44 thousand times more energy from its star than the Earth receives from the Sun. Because of this, the atmosphere of the planet literally “flows” into space.
As for the mother star, it is approximately twice as large as our Sun. The temperature is on average 56% higher. Moreover, this luminary rotates around its axis 38 times faster than the Sun, making one revolution in just 16 hours.
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