#video | In the zone of Goldilocks discovered exoplanet is earth-like

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2020-01-08 23:20:07

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#video | In the zone of Goldilocks discovered exoplanet is earth-like

Before you TOI 700d — an earth-type planet where you can be

Life on our planet arose due to the conjunction of many factors, one of which is the location of the Earth in the Solar system. To keep the water on the planet was in the liquid phase, the planet must be at an optimum distance from the star. Is a reference distance astronomers call the habitable zone or . Since the first exoplanet in 1995, scientists found a few earth-like planets in the habitable zone. Launched in 2018 by NASA space telescope (TESS) found a large number of alien worlds, among which was the extrasolar planet with suitable conditions for life.

Sister of our Sun

Writes data confirmed the TESS spacecraft Spitzer. This discovery, according to the researchers, is key for the TESS telescope, which was launched specifically to search for alien worlds. TESS is able to monitor large sectors of the sky for 27 days. During this time, the apparatus monitors changes in brightness of stars caused by the motion of the planets around the orbits of stars. Astronomers call this phenomenon the transit. In the first year of observations, TESS found the 700 star TOI — cool dwarf of spectral class M, located at a distance of just over 100 light years from Earth in the constellation Dorado. The mass of the star is approximately 40% of the mass of our Sun. The presence of three planets, the researchers learned through multiple transits. After first detection 700 TOI were misclassified as a star like the Sun, and this meant that the planets that revolve around it, needs to be bigger and hotter. Soon, however, astronomers have detected an error.

Green highlighted zone of habitability around cool dwarf TOI 700

Further observation showed that the size of the rocky planets — TOI 700b almost comparable . Moreover, the planet makes a complete revolution in orbit for 10 days. The next planet in a distant star system — is TOI 700c. She's 2.6 times bigger than our planet and is a world in which it dominates. The planet completes a turnover in the orbit of the star for 16 days. But the most famous planet is TOI 700d — its size is bigger than Earth by about 20%, and movement in an orbit around a cool dwarf exoplanet makes for 37 days.

The Most remarkable still is the fact that TOI 700d is in the Goldilocks zone — neither too close nor too far from the star. It speaks of the possible existence of the exoplanet water in the liquid phase, which is the most important factor . Further observation of this star system will allow astronomers to learn about the existence of the planets atmosphere and even determine their composition. As reported in the official NASA, together with colleagues from space flight Center NASA Goddard, the authors of the study developed more than 20 computer models that represent the possible on the planet.

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