She hid in a sea of ​​data from the Kepler telescope. Earth-like exoplanet has been discovered

Astronomers re-analyzing the observational data collected by the Kepler Space Telescope have discovered in them an extrasolar planet close in size to Earth and orbiting in the ecosphere of its star. Earlier, nobody noticed this planet.

The Kepler Space Telescope ended its work in 2018, however, the data collected by it for many years will provide us with new discoveries. The computer algorithms that originally analyzed the first data flowing from the telescope were unable to detect the signal coming from the now discovered planet. Fortunately, scientists again took observational data for the workshop.

As if that wasn't enough, the planet now discovered, only 300 light years away from us, is more like Earth in terms of size and temperature than any other planet discovered by Kepler. That is, there are planets that look more like Earth (e.g. TRAPPIST-1f, Teegarden c) or temperature (TRAPPIST-1d, TOI-700d), but none of them are close to our planet in both aspects at the same time.

Kepler-1649c - characteristics of the new planet

Cataloged under the number Kepler-1649c, the planet has dimensions of 1.06 Earth sizes. Approximately 75 percent of radiation reaching Earth from the Sun reaches its surface. This means that its surface may have temperatures similar to earth's, although everything depends on the composition of its atmosphere.

Kepler-1649c revolves around a red dwarf, a star much smaller than the Sun. At the same time, the planet is close enough to its star that it needs only 19.5 Earth days to complete its orbit.

Around the red dwarf Kepler-1649 there is one more rocky planet besides planet c. The other planet is halfway from the star to planet c, so it is certainly much hotter on its surface and there could be no life on it.

Atypical planetary system

Looking at this system, scientists have noticed that for every 9 orbits of the inner planet, the outer orbit orbits the star 4 times. This is called orbital resonance. Very often such resonances indicate the stability and longevity of the planetary system. However, 9: 4 is extremely rare.

In most systems with several planets, 2: 1 or 3: 2 resonances occur. Hence, scientists suspect that over time it may turn out that there is another planet between the two planets. Such a hypothetical planet would be in a 3: 2 resonance with the other two. So far, however, such a planet could not be seen.

She hid in a sea of ​​data from the Kepler telescope. Earth-like exoplanet has been discovered


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