Three thousand light-years from Earth is Kepler-160, a sun-like star once thought to possess three small planets orbiting its orbit. In the new study, scientists have shown the possibility of a fourth planet, and they named it KOI-456.04.
The new planet is about the size of Earth and orbits Kepler-160 with the same trajectory as the distance between us and the Sun, making scientists hope this is another candidate on the list. planets that can support life.
KOI-456.04 gives us a reason to look for planets that might support life around stars like the Sun.
The majority of exoplanets (exoplanets) we have discovered revolve around red dwarfs. This does not surprise science, because red dwarfs are the common planets in the Universe. In addition, our way of exoplanet detection revolves around detecting the path of a planet across the star – when the planet passes over the star’s surface, the amount of light emitted decreases slightly and from there, the Scientists can determine the size, orbit and other information about the exoplanet.
Red dwarfs are not so bright, emitting less energy and radiation than other stars, so it is somewhat easier to detect horizontal planets. The most famous red dwarf is probably Proxima Centauri (belonging to Alpha Centauri and Alpha Centauri A and Alpha Centauri B, Proxima Centauri is also the closest to the Solar System, only 4,243 light-years away); orbiting Proxima Centauri is an exoplanet called Proxima b, which has the potential to sustain life.
Keep talking about new findings. In a new research report published in the journal Astrophysics and Astrophysics last Thursday, data about exoplanets flying around Kepler-160 has its own notable points.
From what astronomers have observed, KOI 456.04 is almost twice the size of the Earth, flies around Kepler-160 at a distance similar to Earth with the Sun, and completes an orbit in 378 days. This is the most important point: KOI 456.04 receives about 93% of the sunlight that the Earth receives from the Sun, located far enough away from the central star for liquid water to exist on the surface.
If the Koi-456,047 has an atmosphere similar to Earth, its surface temperature would be about 5 degrees Celsius; The average air temperature on the Earth’s surface is approximately 15 degrees Celsius.
This data is remarkable, because one of the reasons why a red dwarf star doesn’t support life is the amount of radiation emitted from it, which is capable of baking any life that ignites. as well as the planet itself. In contrast, a relatively healthy star like the Sun – in theory, even the Kepler-160 star – is much more stable, potentially supporting life development.
The study authors discovered KOI-456.04 through analysis of old data obtained by the Kepler telescope. They applied two new algorithms to analyze the luminosity emitted by Kepler-140, and thereby identify new exoplanets.
At the present time, the team thinks that there is an 85% probability that KOI-456.04 is a true planet – an object must have reached over 99% of the ability to be recognized as an exoplanet. To get that 99% assertion, astronomers need to continue tracking this star system, and when NASA’s James Webb telescopes (scheduled to launch in 2021) and PLATO (scheduled to launch into 2026). officially put into operation, we will be able to confirm KOI-456.04 is “brother” to Earth or not.
Refer to MIT Technology Review