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It was discovered by NASA's Kepler Space Telescope in December 2011 and was the first known transiting planet to orbit within the habitable zone of a Sun-like star, where liquid water could exist on the planet's surface. [4] Kepler-22 is too dim to be seen with the naked eye. Kepler-22b's radius is roughly twice that of Earth. [5]
Exoplanets potentially containing water (artwork; 17 August 2018) [104] (Left to right: Kepler-22b, Kepler-69c, Kepler-452b, Kepler-62f, Kepler-186f.) Most known extrasolar planetary systems appear to have very different compositions compared to that of the Solar System , though there may be sample bias arising from the detection methods .
K2-22b (also known as EPIC 201637175 b) is an exoplanet 801 ly from Earth, rapidly orbiting the red dwarf K2-22 with an orbital period of 9.145872 hours. [2] It has a mass of 0.02 M E and a radius below 0.71 M E. [3] The planet was not detected in the K2 photometry. K2 photometry reveals the presence of an anomalous light curve consistent with ...
This is a list of exoplanets within the circumstellar habitable zone that are either under 10 Earth masses or smaller than 2.5 Earth radii, and thus have a chance of being rocky. [ 3 ] [ 1 ] Note that inclusion on this list does not guarantee habitability, and in particular the larger planets are more unlikely to have a rocky composition. [ 4 ]
Kepler-22b is at a distance of 600 light-years, in the Cygnus constellation. [48] It completes one orbit around its G5V-type star every 290 days. [53] Its radius is 2.35 R ⊕ and its estimated mass, for an Earth-like density, would be 20.36 M ⊕. If the planet's atmosphere and albedo were similar to Earth's, its surface temperature would be ...
Kepler-22b does not have only 2.4 Earth masses, even if it has a lower density than Earth. It has a radius 2.4 times Earth's, which corresponds to a volume 13.8 times Earth's. So at Earth's density, it would have the same mass as Uranus!
The owners of the California gas station who sold the fifth largest Mega Millions ticket in history on Friday were elated to learn their store had played a small part in the $1.22 billion jackpot ...
Kepler-22 is a Sun-like star in the northern constellation of Cygnus, the swan, that is orbited by at least 1 planet found to be unequivocally within the star's habitable zone. It is located at the celestial coordinates : Right Ascension 19 h 16 m 52.2 s , Declination +47° 53′ 3.9″. [ 2 ]