A planetary system with two suns

05 Sep

sunAmerican space telescope ‘Kepler’ exposed a planetary system with two suns. In the Kepler-47 system has two planets orbiting a dual star.

One of the explanatory is in the so-called habitable zone, says investigator Jerome Orosz of the University of San Diego in the U.S. journal Science. It is unlikely that there is life out there, but the opening, however, suggests that even a binary star possible existence of a complete planetary system like our solar system.

System “Kepler-47” is located about 4,900 light-years from Earth in the constellation Cygnus (Cygnus). There are two stars, one of which is similar in size to our Sun, but its brightness is only 84% of the brightness of the sun, and the mass of the second star is about one-third of the big stars, their cycle of rotation, by earthly standards, is 7.5 days. The star couple has in the system, at least two of the planet.

Inner planet Kepler 47b, which corresponds to the radius of the orbit of the three radii of the orbits of the Earth, bypasses the “sun” in less than 50 days. The outer planet, Kepler-47c, does it for 303 days, it is in the habitable zone, that is, on its surface may be water. This is probably the gas giant slightly larger in size than Neptune.

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Posted by on September 5, 2012 in Earth, Galaxy, Historical, Mysterious, Planet


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