Gliese 667Cc is a super earth that is orbiting a red dwarf star. This exoplanet, or extrasolar planet, has the equivalent of 4.25 Earth masses. Its discovery, in 2011, was due to the popular HARPS spectrometer, which is located in the La Silla observatory, in Chile, and which uses the radial velocity method.
Gliese 667 Cc is in a triple star system located in the constellation of the Scorpio, and could be the second or third planet with respect to the distance of its star. Said system would consist of at least six planets.
The planet Gliese 667Cc has an orbital period of just 28 days, and it is a small star located in the habitable zone of its system. As we already indicated, Gliese 667Cc is not the only exoplanet of this system, since it is accompanied by Gliese 667Cb, a super-earth of 5.46 land masses located at a smaller distance. It is possible that this system houses more planets, such as the Gliese 667Cd, which would have the equivalent of 7 Earth masses and would be in a farther orbit.
Gliese 667 Cc orbits a red dwarf that is three times smaller than our Sun. Due to the lower mass of this type of stars, its luminosity is much lower than that of the Sun. Gliese 667 Cc is very close to its star , so it is possible that this exoplanet was constantly exposed to the bombardment of X-rays or ultraviolet radiation.
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