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Kepler-22b's radius was initially thought to be 2.4 times that of Earth, but has since been revised to 2.1 R 🜨 as of 2023. [ 6 ] [ 3 ] Its mass and surface composition remain unknown, [ 2 ] [ 7 ] with only some rough estimates established: at the time of the discovery announcement, it was known to have fewer than 124 Earth masses at the 3 ...
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 ...
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 ...
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Scientists analyzed famed astronomer Johannes Kepler’s 1607 sketches of sunspots to solve a mystery about the sun’s solar cycle that has persisted for centuries.
Confirmed surface with strong evidence for it being either solid or liquid; Water vapour detected in its atmosphere; ... Kepler-22b: Kepler-22 <52.8 295 600 ~4 289.8 2011
Surface planetary habitability is thought to require an orbit at the right distance from the host star for liquid surface water to be present, ... Kepler-22b: Kepler ...
In order to characterize the geodynamic regime of an Earth-like exoplanet, the basic assumption is made that such a planet is Earth-like or “rocky”. This implies a three-layer stratigraphy of (from center to surface) a partially molten iron core, a silicate mantle that convects over geologic timescales, and a relatively cold, brittle silicate lithosphere.