"Kepler" discovered twin solar system


27/07/2012

Astronomers have recently reported that they found in the Kepler-30 star and three exoplanets that orbit in the same plane, just as it does in our solar system. Details were published in the scientific journal Nature.

Star Kepler-30a, as the researchers note, is very similar in size to the Sun. Using an orbital telescope "Kepler", they managed to open three extrasolar planets orbiting around it. The diameter of one of the planet 4 and the other two is almost 10 times greater than the diameter of the earth. Complete revolution around the sun planets make for 29, 60 and 143 days.

Astronomers found that all the detected rotation occurs ekzoplanet them in one plane, and the axis of rotation of planets remote fully coincide with the axis of rotation of the star. This discovery scientists have made watching the huge stains on the surface of stars that once every 16 days, reduce the brightness of its luminescence. Furthermore, it was found that the location of these three planetary often corresponds to the position of star spots. Since the size of the spots is much smaller than the star, then this coincidence indicates no difference in the slope of the orbits.

Until now, the coincidence of the planes of the orbits of the planets are considered unique to the solar system. It is the main evidence of the formation of planets, or a rotating disk proplyds. Meanwhile, matching the orbital plane indicates that the planet’s systems did not have the strong influences of gravitational nature outside. The discovery of exoplanets have orbital plane will help astronomers better understand the distribution systems in the galaxy, similar to the Earth.

Search ekzoplanet is "Kepler" by fixing the frequency with which the planet pass between the star and the telescope, and by analyzing these data.


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