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NASA Explored a World-Like Planet in the Livable Area

Scientists from NASA continue to make discoveries with data from the Kepler satellite. Scientists still examining the data obtained by Kepler, who retired in 2018, detected a planet similar to the Earth 300 million light years away from Earth.

NASA’s spacecraft collecting data from stars in orbit of the Sun Kepler, He retired in 2018. Although Kepler has been in office for two years, the data obtained by the spacecraft continue to be studied by scientists.

Star data obtained by Kepler is actually a algorithm being reviewed by. However, scientists have discovered that the algorithm made mistakes in some data reviews. For this reason, the results of the algorithm are checked by scientists and the data is reviewed. During the reexamination of the data by scientists, a planet similar to the Earth was discovered 300 million light years away from Earth.

Earth-like planet around the dwarf star

Kepler-1649c

Scientists discovered Kepler-1649c called planet is only 1.06 times bigger than Earth. The planet can receive up to 75 percent of the light that the Earth receives from the Sun, in which it is located in its orbit. However, unlike the Earth, the newly discovered planet orbits a red dwarf star. Dwarf stars cause star flares that prevent the emergence of life on the planets. In the system detected by Kepler, no such event has been observed yet.

The planet called Kepler-1649c, little red dwarf star It is very close. Due to the planet's proximity to the star, one year of Kepler-1649c is equal to 19.5 days of the Earth.

Not much is known about the Kepler-1649c yet. The first thing to do is to determine the level of temperature on the planet. atmosphere takes place. However, the data obtained are that the planet has the potential to support life.

Kepler-1649c

In the star system, next to Kepler-1649c, this planet of similar size Another rocky planet was discovered. But this rocky planet is half a distance from its star Kepler-1649c.

Incorrectly evaluated data is being checked

Scientists from NASA's Ames Research Center in California were able to sort the big data set that the Kepler spacecraft obtained. Robovett is They developed an algorithm called. This algorithm searched for the brightness drops that the planets create when passing in front of the stars to find the planets.

Drops in the brightness of the stars are often cosmic objects occurs in situations such as passing by the star. The algorithm detected the brightness drops that the planets would create as they pass in front of the star, leaving out cosmic objects. Robovetter considered these shine drops of cosmic objects passing in front of the star as “false positives”.

Kepler-1649c

Scientists with a large number of complex signal data, algorithm They knew that it could make some mistakes, so the results should be checked twice. For this reason, the Kepler False Positive Working Group was established. This research team is reviewing Robovetter's work. Researchers in the study group are reviewing all the data Robovetter considers false positive and disregarding data with little potential for being a planet.

Robovetter's review of only 2009 and 2013 data, which is the first work of Kepler new planets to reveal. Kepler-1649c was revealed as a result of these rigorous analyzes.

It may also be a third planet

The study of the data obtained from the star of Kepler-1649c in terms of size and energies shows how similar the planet is to the Earth, but it gives a new look to the star system. When the outer planet in the system rotates four times in orbit, the inner planet rotates around the star nine times. planets in turn orbit this stable ratio match shows that the system itself is extremely stable and can survive for a long time.

Kepler-1649c

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These almost perfect orbital rotation rates are often planetary resonance causes a phenomenon called. However, the nine-orbit rotation ratio between the two discovered planets is a relatively unique ratio. These rates are usually observed in half or one third.

Although unconfirmed, these unique rotation rates of planets in orbit are between the two planets and affect planet resonance. of the third planet may indicate its presence.

In their data, the researchers sought the existence of a potential third planet. But this quest inconclusive I stayed. Although the existence of a third planet could not be determined, a Earth-like planet caught by Kepler was discovered. Also around a dwarf star potentially able to provide life Finding evidence of the existence of a planet is also very important.

Source :
https://phys.org/news/2020-04-earth-size-habitable-zone-planet-hidden-early.html