Gliese 667C c: Livable Exoplanet in Three Stars System

Astronomy Science ~ The new planet is the Super planet Earth with an indication of habitable planets orbiting nearby stars. Planet Gliese 6...

Astronomy Science ~ The new planet is the Super planet Earth with an indication of habitable planets orbiting nearby stars. Planet Gliese 667C c aka GJ667C c, planet at this time as a potentially habitable planet and the best candidates from the exoplanet similar to Earth. Though of course to be able to give a final conclusion still needs further observation ability to sustain life on these exoplanets.

Super Planet Earth and potential habitable planet Gliese 667C c is a planet that have its on one of the stars in the threes star system. He circling their parent stars within 28 days and has a minimum mass of 4.5 times the mass of Earth. And of course, the planet is in the habitable zone of the star. The location was not too hot and not much too cold for the presence of water in liquid form on the surface of the planet.

Diagram planetary system Gliese 667C. Credit: UC Santa Cruz
Diagram planetary system Gliese 667C. Credit: UC Santa Cruz
Illustration of Gliese 667C planetary system which have planets in the habitable zone. Credit: Guillem Anglada-Escude
Illustration of Gliese 667C planetary system which have planets in the habitable zone. Credit: Guillem Anglada-Escude
The international team's research results also indicate the possibility of the existence of two or three planets around the star again participating with a distance of 22 light years from Earth in the Scorpius constellation. Gliese 667C c circling the red dwarf star Gliese 667C, the Gliese 667C b and Gliese 667C a distance from the parent star is very close to the 0.12 SA. Much closer than Mercury to the sun. But the parent star is much dimmer than the Sun and can provide enough energy for the planet to keep the temperature.

Temperatures in the Gliese 667C c is still uncertain, but if it is assumed he has the same earth's atmosphere, the temperature may range from ~ 30ยบ C and same across the planet. But if the planet has an atmosphere that is more massive, the temperature will be higher and would not be suitable for life.

Gliese 667C c composition is still unknown, one of the essential components used to calculate the density. It could be Gliese 667C c is a rocky planet, oceans or even a gas planet. Only rocky planets or ocean planet that could be categorized as a habitable planet. To meet the criteria, the size of the radius must be between 1.7 to 2.2 Earth radius.

To determine the size of the planet Gliese 667C c can be done through methods of transit as did by Kepler. But for the case of Gliese 667C c, chances to transiting is very small.

Three Star system

The host star, the planet Gliese 667C c, Gliese 667C is an M-class dwarf star orbiting the Gliese star, Gliese 667A and 667B at a distance of more than 230 SA (approximately 6 times the distance of the Sun - Pluto). That is, the star Gliese 667C is part of the three star system. Nevertheless, the thermal environment Gliese 667C c only influenced by the parent star and is not influenced by two other stars.

Two other Gliese star, Gliese 667A and 667B is an orange with a brown dwarf pair concentration of the abundance of heavy elements only 25% of which is owned by the sun. That element is an important constituent in forming a terrestrial planet. Since it is estimated that stars with low metal abundance will not be able to have an abundance of low-mass planets. The same is also on Gliese 667C. This star has little abundance of elements that heavier than helium, such as iron, carbon and silicon. This discovery indicates that the potential for the habitable planet can be different from that previously known.
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Astronomy Science: Gliese 667C c: Livable Exoplanet in Three Stars System
Gliese 667C c: Livable Exoplanet in Three Stars System
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