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Concept
Kepler-62e
Summary
Kepler-62e (also known by its Kepler Object of Interest designation KOI-701.03) is a super-Earth exoplanet (extrasolar planet) discovered orbiting within the habitable zone of Kepler-62, the second outermost of five such planets discovered by NASA's Kepler spacecraft. Kepler-62e is located about from Earth in the constellation of Lyra. The exoplanet was found using the transit method, in which the dimming effect that a planet causes as it crosses in front of its star is measured. Kepler-62e may be a terrestrial or ocean-covered planet; it lies in the inner part of its host star's habitable zone.
Kepler-62e orbits its host star every 122 days and is roughly 60 percent larger (in diameter) than Earth.
Kepler-62e is a super-Earth with a radius 1.61 times that of Earth. This is just above the 1.6 limit above which planets may be more gaseous than they are rocky, so Kepler-62e may likely be a mini-Neptune. It has an equilibrium temperature of . It has an estimated mass of 4.5 , although the true value cannot be determined; upper limits place it at 36 , which is unlikely to be true.
Kepler-62
The planet orbits a (K-type) star named Kepler-62, orbited by a total of five planets. The star has a mass of 0.69 and a radius of 0.64 . It has a temperature of and is 7 billion years old. In comparison, the Sun is 4.6 billion years old and has a temperature of . The star is somewhat metal-poor, with a metallicity ([Fe/H]) of −0.37, or 42% of the solar amount. Its luminosity () is 21% that of the Sun.
The star's apparent magnitude, or how bright it appears from Earth's perspective, is 13.65 and therefore too dim to be seen with the naked eye.
Kepler-62e orbits its host star with an orbital period of 122.3 days at a distance of about 0.42 AU (compared to the distance of Mercury from the Sun, which is about ). A 2016 study came to a conclusion that the orbits of Kepler-62f and Kepler-62e are likely in a 2:1 orbital resonance. This means that for every two orbits of planet "e", "f" completes one around its star.
Official source
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