A new analysis of the data space telescope “Kepler” has led to the discovery of the exoplanet Kepler-1649c, which is currently the most Earth-like in size and design temperature. Initially automatic data processing system has detected the transit of this planet over the disk of its star as a false alarm. Article published in the journal The Astrophysical Journal Letters.
Kepler-1649c is in the M-dwarf, is located 300 light years from the Sun. The star has a mass of 0.19 solar masses, a radius of 0.23 of the Sun’s radius and effective temperature 3240 Kelvin. One revolution around its star exoplanet makes for 19.5 days on earth, it is 1.06 times more Land. The amount of radiation from a star, which gets a Kepler-1649c, 74 per cent of the same radiation flux from the Sun received by the Earth, which gives an estimate of the equilibrium temperature of the exoplanet in 234 Kelvin, while it is in the habitable zone of its star. All this makes Kepler-1649c most similar to Earth exoplanet in size and design temperature.
This discovery emphasizes the value of analysis of human candidate found on the planet, even in the face of continuous improvement of automated methods of search, and indicates that earth-like exoplanets have M-dwarfs may be much more common than planets around more massive stars.
The system Kepler-1649 also contains another, already-known domestic exoplanet Kepler-1649b, which completes one revolution around the star in 8.7 earth days and is similar to Venus. However, it is expected that the system could be another exoplanet, the search which have not yet come to fruition. It can be located between Kepler-1649b and c, and in this case their orbits are in resonance 3:2. She’s probably either too small for detection (the size of Mars or smaller), or shifted enough that the phenomena of the transit occurred.
Earlier we talked about how a re-analysis of the data, “Kepler” has helped to open another 17 candidates in exoplanets and as the first discovered “Kepler” candidate exoplanets were confirmed eight years later.