The discovery of a new planet can be livable

An international team of astronomers has discovered a new solar system comprising a habitable planet, according to the Spanish astronomer Rafael Loki, who led the research of the Canary Islands Astrophysics Institute.

Three new planets orbiting the JJ 357, a cool dwarf star 31 light-years from Earth, have proved relatively close, Loki said.

NASA also announced the discovery of its TES satellite, which specializes in the detection of extrasolar planets.

One of these planets, known as JJ-357D, was the most interesting of scientists because the researchers believe that it could be livable.

An indication of the planet's vulnerability to its habitat is that it is rocky and that its size is similar to the size of the Earth and is located at a moderate distance from the sun, so that it is not neither too close nor too far away to benefit from an adequate water temperature, essential condition for life on its surface.

Because of its distance from the star, researchers estimate that the planet's temperature can reach 53 degrees Celsius, according to Loki.

"It looks cool at first," he said. "But if the planet has an atmosphere, it can retain the warmth it receives from its star, allowing the water to be liquid."

The researchers also suggested that the planet "JJ-357D" is twice as big as the Earth.

This planet is not the first to discover near our solar system and can be livable.

In 2016, Proxima B only discovered four light-years of the solar system, which aroused great interest.

These planets were detected by a method called radial velocity, which involves locating the oscillation in the star from the gravitational pull of a planet in orbit. Loki pointed out that this method was not accurate enough to ensure that a planet is livable. Therefore, it is necessary to use the technique of transit, which allows to measure its size, to calculate its density and to know its composition (gaseous or not), and the planet must pbad directly between its star and the 39; observer.

In the coming months, Locke and his team will try to control the J357D during the "transit" process to try to confirm if it is fit to be inhabited.

"The possibility that a planet goes past a star in our Earth vision is very small," Luky said.