100 billion planets of our Galaxy

planetsObservatory “Kepler“, prepared with a powerful super-sensitive photometer can at the same time observe more than 100,000 stars, and will be watching them for 3.5 years. The presence of a planet near the star is determined by periodic changes in the brightness of the latter entailed by transit – the passage of a planet in front of a star.

The study and the “counting” of planets in our galaxy, attended by scientists from the California Institute of Technology Caltech.

“We anticipate that our galaxy has about 100 billion planets” – says professor of planetary astronomy at the California Institute of Technology and co-author John Johnson. “Of course, 100 billion – is the approximate number of planets. Actually there may be a little more or less. Nevertheless, this discovery of its kind, because we print the number on the basis of an orbital telescope” Kepler. ”

The basis of the study was taken by the star system Kepler-32 and its five planets, two of which have long been confirmed by astronomers. Scientists from Caltech team confirmed the other three planets, and compared the star system Kepler-32 to other star systems, detecting space telescope Kepler. Now, where in the course went simple mathematics, in which the figure was removed and 100 billion.

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