Astronomers have found a "

24 February 2023, 20:54 | Technologies
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Scientists have discovered an unusual planetary system that consists of a Jupiter-like planet that orbits a tiny star only four times its own size.. This " com.

The exoplanet orbits the red dwarf TOI 5205, which is much smaller and colder than the Sun. The small size and relatively low temperature of such M-stars make them redder than our star.. This is the most common type of star in the Milky Way..

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On average, this class of stars contains a large number of planets, but scientists believed that their sizes did not imply the formation of a gas giant nearby.. But the discovery of the planet TOI 5205b by the TESS telescope casts doubt on this hypothesis..

It is worth noting that gas giants have been found near red dwarfs before.. But for the first time such a large planet was found near such a small star..

To demonstrate how unbalanced the system is, scientists propose to imagine that our Sun has shrunk to the size of a grapefruit.. Then the largest planet in our system, Jupiter, would resemble the size of a pea. In the TOI 5205 system, the pea revolves around the lemon.

TESS observed the star, fixing the fall in its brightness. This method of detecting planets is known as transit..

The difference in the size of the star and the planet is such that the passage of the latter in front of the disk of the star led to a drop in its brightness by 7%.. This is the largest drop in the light of a star, caused by the transit of a planet, known at the moment..

Earlier, astronomers using the Very Large Telescope were able to take a picture of an exoplanet that orbits the star AF Leporis.. The images of the planet were taken by two teams of scientists using the SPHERE instrument mounted on the telescope..




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