The new planet TOI-2109b has been discovered orbiting a star 855 light years away from us. The planet’s orbit is so narrow that it orbits its star in just 16 hours. Scientists expect it to fall into its star within a few million years.
2020 to 13, the (Satellite Survey In traffic) began to look towards TOI-2109, a One and a half times as big as ours And located at 264 barracks (approximately 855 years) ) Ours . For almost a month, the space telescope collected measurements Of the star then analyzed by scientific teams .Spatial
Transportation system for detecting extraterrestrials
Using , The presence of an object orbiting a star can be determined by studying its luminosity variations: As an object moves between the observer and the star, the measured luminosity of the star decreases slightly. The event was observed by Tess scientists, prompting them to inform the astronomical community about it, thanks to additional observations made by ground-based telescopes, confirming the existence of a planet around you-2109.
By measuringThe luminosity measured by the telescope varies, and scientists were able to detect it ( What puts To create a complete turn around the center of the sound ) Of this planet, and their discovery was astonishing: in just 16 hours, it would complete a complete circle around its star.
A “high-hot Jupiter” will fall on its star
With the help of various measurementsOptical and , Was discovered by the research team And the size of TOI-2109b, five times larger and 35% larger . It orbits at a very short distance from its star, about 2.5 million kilometers (in comparison, the planet Mercury in the Solar System is about 60 million kilometers away from it): it is the narrowest orbit. Of all the gas giants observed to date.
Due to its very tight orbit, and in most cases ” As is known, the planet is in orbit With its star: it always gives it the same page, thus creating a permanent day page and a permanent night page. According to scientists, at such a short distance from its star, the surface temperature on the daytime side of this exoplanet is estimated at 3,500 C, which is as hot as a small star, making the planet the second warmest. Compared to “hot Jupiter”, it is classified as “over-hot Jupiter”, usually more and more cold from their star.
The very short orbit of TOI-2109b makes scientists believe that it will fall into its star within a few million years. According to Ian Wong, the study’s lead author, ” In a year or two, if we are lucky, we will be able to find out how close the planet is to its star. .
Researchers hope to observe TOI-2109b in the future with more powerful instruments, especially thanks to space telescopesAnd James-Webb, to shed light on the conditions under which “Hot Jupiter” falls on their star. Further observations will also allow us to understand how a large planet such as the TOI-2109b could reach such a narrow orbit, a phenomenon unnoticed in our solar system.
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