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Exomoon, Livable Zone Search Among the Exoplanets

Astronomers began to consider Exomoon or planets orbiting that allow the existence of life outside our solar system. In a new study, a pair of researchers have found that it is possible to support Exomoon life like exoplanet.

Exomoon research conducted by Rene Heller of Germany's Leibniz Institute for Astrophysics Potsdam and Rory Barnes of the University of Washington, and the NASA Astrobiology Institute, the journal will be published in the January 2013 issue of Astrobiology.

Approximately 850 exoplanets (planets outside our solar system) that was discovered and largely sterile gas giant similar to Jupiter. Only a few planets have solid surfaces and orbits its star in the habitable zone. Circumstellar belt at the right distance potentially allowing the liquid surface and a friendly environment.

exomoonIs the planet has a moon that could inhabited? No Exomoon that meet these criteria, but there is no thought there was no reason at all. Climatic conditions expected in exoplanets likely to be different from those in extrasolar planets, because the moon is usually locked on the planet. Or more similar to Earth's moon, one hemisphere permanently facing the moon.

Moon has two light sources, which are derived from the stars and planets they orbit, and have eclipse that could significantly alter the climate, reducing lighting stars. For example, a solar eclipse can cause total darkness suddenly at noon.

Heller and Barnes also identified as a criterion in the habit heating exomoon. Additional energy source is triggered from a distance of the Moon to its parent planet, the moon is close to the heating and stronger tides. Moons orbiting the planet is too close to be undergoing strong heating, so that the greenhouse effect would be a disaster to boil water on the surface and clearly uninhabitable.

The researchers also designed a theoretical model for estimating the minimum distance of moon from the planet and its host is still possible habitability. This concept will allow astronomers to evaluate future exoplanets moon habit. There is a habitable zone on Exomoon, slightly different from the exoplanet habitable zone.
NASA's Kepler telescope photometric precision of detection yield on the planet Mars and the Earth, allowing the size of exoplanets month. Telescopes allow scientists to reveal thousands of extrasolar planets.

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