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Wednesday, July 26, 2017

In the habitable zone of a double star discovered the largest extrasolar planet

With the help of a telescope “Kepler”, the team representing the University of San Diego and Goldanskii space flight center at the American space Agency, NASA, were able to detect the largest one discovered to date of exoplanets orbiting around binary stars. Celestial body, called Kepler-1647b, is the so-called habitable zone of the system. It is assumed that the size of extrasolar planet comparable to Jupiter.

photo: pixabay.com

Under the habitable zone, scientists mean the space around the stars (or in this case a system of two stars where water can exist in liquid phase, which is one of the Central conditions for the emergence of life. However, it is highly unlikely that Kepler-1647b will be a planet — in all likelihood, it is a gas giant, and life on those scientists to detect today do not count. However, scientists believe their discovery is highly valuable for many other reasons.

Kepler-1647b revolves around a system of two stars, one of which is somewhat larger and the other slightly less Sun. A double star system located in the constellation of Cygnus at a distance of approximately 3,700 light-years, its age is estimated at 4.4 billion years. The first space object was discovered in 2011, however, confirm that he is the exoplanet was only recently, since a year on this planet lasts almost 3 times longer, and hence between their stars and Earth, he is only once every 1100 days on earth. At the moment when the exoplanet is partially “blocking” their stars for the second time, scientists were able to collect a sufficient amount of additional information. In result we found out that the radius of a gas giant is roughly the same as that of Jupiter, and the mass can significantly exceed that of the Jupiter. Also, scientists have confirmed that Kepler-1647b has a record of a prolonged period of treatment.

On opening, the scientists reported in San Diego during the meeting of the American astronomical society. Study open exoplanet, to be published in the scientific journal Astrophysical Journal.

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