Kepler-186 d is a super Earth exoplanet that orbits a M-type star. It is an exoplanet that orbits the star Kepler-186, which are 579.1 light-years (177.6 pc) away from our Solar System. It has a mass of 2.54 Earths, takes 13.3 days to complete one orbit of its star, and is 0.0781 AU away from it. The discovery was made public in 2014.
The apparent magnitude of Kepler-186 is 12.5, with an absolute magnitude of 6.2. When compared to our Sun, it is 0.5 times more massive and 0.5 times larger. The surface temperature is 3748, and the spectral type is M1. The extrasolar planet Kepler-186 d orbits the star Kepler-186 every 13.3 days at an orbital distance of 0.08 AU.
Kepler-186 is a main-sequence M1 dwarf star in the constellation Cygnus, located 178.5 parsecs (582 light years) away. The star is slightly cooler than the sun and has about half the metallicity. With a mass 0.544 times that of the Sun and a density of 5.29 g/cm3, the star is a M-type red dwarf on the verge of becoming a K-type orange dwarf.
Kepler-186 d is an exoplanet that orbits the star Kepler-186, which is 582 light years away from the Sun. It has a radius of about 250px and orbits its star much closer than Earth does the Sun. The Kepler spacecraft discovered Kepler-186 d, which was initially classified as a planet candidate. A new statistical analysis led by a team at NASA Ames Research Center has validated the planet with more than 99 percent confidence. Although many parameters of Kepler-186 d are still unknown, the object is highly unlikely to be a false positive.
The Kepler-186 star has roughly half the mass of the sun, and the newly discovered planet is far enough away from its star that powerful flares may not have a significant impact on it, according to scientists. Kepler-186 stars, for example, have long stellar lifetimes. Kepler-186’s location in the habitable zone around its star suggests that the planet could support life. It’s possible that the planet has an atmosphere that keeps water in liquid form on its surface, which is required for life as we know it on Earth.