Astronomers have discovered a giant planet orbiting at an extremely small distance from its star

Astronomers have discovered a giant planet orbiting at an extremely small distance from its star
Astronomers have discovered a giant planet orbiting at an extremely small distance from its star
Anonim

Scientists have found a planet that makes one revolution around its star in just 18 hours.

Hot Jupiter as seen by the artist

Planetologists from the UK reported the discovery of an extremely large planet, which orbits at an extremely small distance from the star, located in the constellation Hare NGTS-10. The research results are published in the Monthly Notices of Royal Astronomical Society, a Russian-language review provided by TASS.

According to James McCormac, a professor at the University of Warwick (James McCormac), in theory such planets are very easy to find, since they are more likely than others to pass along the disk of the star. However, in practice, hot Jupiters located at such a close distance from the star are extremely rare - the bulk of such planets are located farther from their stars.

Moreover, today it is the hottest Jupiter closest to the star of all known to science. Its distance to NGTS-10 is 2.5 million kilometers, which is why the planet makes one revolution around the star in just 18 hours.

According to astronomers, there is a gradual approach of the planet with its star, so that in the future the "year" on it will become even shorter. According to estimates, hot Jupiter will exist for another 38 million years, after which it will fall into the upper atmosphere of the star. The star NGTS-10 itself is a yellow dwarf that is ten billion years old. Our luminary, recall, also belongs to this class of small stars of the main sequence.

The new discovery is important for science also because the study of the approach of such planets with stars can provide a better understanding of exactly how hot Jupiters work. And also to answer the question about their origin and how exactly these planets ended up at such a close distance from the stars.

Recall that planets are called hot Jupiters, which, as a rule, are located at a distance of about 0.05 astronomical units from the star - that is, extremely close. There are no such objects in the solar system.

Earlier, another team of specialists found out that the huge temperatures lead to the fact that on the day side of the exoplanet Kelt-9b, hydrogen atoms disintegrate, and once on the night side, they merge again.

And even earlier, using the Hubble telescope, scientists examined the hot Jupiter WASP-121b, which is so hot that heavy elements escape from its atmosphere into space. Researchers believe that WASP-121b allows you to study the process of loss of the primary atmosphere - an important stage in the evolution of planets.

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