Kepler 452b Earth 2.0 Mass, radius and temperature
Size comparison of Kepler-452 b with Earth.
Kepler-452b has a probable mass five times that of Earth, and its surface gravity is nearly twice as Earth’s, though calculations of mass for exoplanets are only rough estimates. If it is a terrestrial planet, it is most likely a super-Earth with many active volcanoes due to its higher mass and density. The clouds on the planet would be thick and misty, covering much of the surface as viewed from space.
The planet takes 385 Earth d
ays to orbit its star. Its radius is 50% bigger than Earth’s, and lies within the conservative habitable zone of its parent star. It has an equilibrium Kepler-452b (a world sometimes quoted for an Earth 2.0 or Earth’s Cousin according to its own characteristics; also referred to by its own Kepler Object of Interest designation KOI-7016.01 is an exoplanet orbiting the Sun-like celebrity Kepler-452 roughly 1402 light-years 430 computer from Earth in the constellation Cygnus.
But a study in 2018 from Mullally et al. indicated that mathematically, Kepler-452b hasn’t yet been demonstrated to exist and should nevertheless be regarded as a candidate. Additionally, its mass of 5 Earth masses raises the risk that the entire world is a mini-Neptune rather than a super-Earth. It’s the first possibly rocky super-Earth world discovered orbiting within the habitable zone of a star very much like the Sun. The world is roughly 1400 light-years away in the Solar System. In the rate of this New Horizons spacecraft, roughly 59,000 km/h 37000 miles it would take roughly 26 million years to arrive.
Temperature of 265 K (−8 °C; 17 °F), somewhat warmer than Earth. But because Kepler-452 is almost two billion years old, at roughly 6.5 billion decades, the rugged world’s atmosphere and water probably vanished.
The host celebrity, Kepler-452, is a G-type is roughly precisely the exact same mass of sunlight, just 3.7percent more gigantic and 11 percent larger. It has a surface temperature of 5757 K, almost exactly like the Sun, that has a surface temperature of 5778 K.  In the surface of Kepler-452b, its celebrity would seem nearly identical to the Sun as seen from the Earth.
The star’s apparent size, or just how bright it looks from Earth’s view, is 13.426; thus, it’s too dim to be observed with the naked eye.
Kepler-452b orbits its host star with an orbital period of 385 days and an orbital radius of approximately 1.04 AU, almost exactly the same as Earth’s (1 AU). Kepler-452b is the most probably not tidally locked and contains a round orbit. Its host celebrity, Kepler-452, is roughly 20 percent more luminous than the Sun