Space Telescope, "Kepler" has confirmed the existence of 100 exoplanets

An international team of astronomers reported that the number of discovered exoplanets has almost a hundred thanks to the ongoing mission of K2 Space Telescope, "Kepler" space agency NASA. After analyzing the latest data from the telescope, scientists announced the discovery of another 95 planets that generally increases the amount found in the mission K2 exoplanets to nearly 300.

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"We started the analysis of the 275 candidates, 149 of whom were later confirmed as exoplanets. In this case, 95 of them were previously unknown, "- commented the study's lead author, Andrew Mayo from the Danish Technical University.

Recall that the space mission "Kepler" was launched in 2009. Since the telescope is circling around the sun and tries to detect new exoplanets using the transit method of observation - from time to time taking pictures and looking for other stars change their brightness. When the brightness is reduced, and then after a certain period of time becomes the same value, then, most likely, this means that the light from the star is blocked periodically rather large body. In other words, perhaps the planet.

The method is very laborious and requires the analysis of huge amounts of data. First select periods of change in luminance, and then to accept them. Also, it only works if the planets and the stars fall into the beam of the observer plane (or us, or else, as in this case, the telescope "Kepler"). Nevertheless, the method is recognized by astronomers quite effective. Thanks to him, noted in NASA's, the main part of the mission "Kepler" found 5100 candidates and 2341 confirmed the existence of exoplanets. Unfortunately, in 2013, the space telescope was faced with a serious problem when one of its gyroscopes that help orient themselves in space, out of order. However, NASA found a way to extend the life of the cosmic observer. For the orientation of the telescope, it was decided to use the auxiliary steering engines. With this telescope is the science so far.

The data that the Mayo team used for the analysis were collected by the telescope back in 2014. Scientists had to tinker a lot of in order to confirm that the marked change in the brightness of stars are not other possible factors have been caused.

"We found that the source of some of the signals are multiple star systems, as well as the electromagnetic noise of the spacecraft. But we have also discovered the planet, ranging in size from very small to the Earth-Jupiter-sized or even more ", - said Mayo.

"For example, one of the planets, which has not previously been known to be the star HD 212657, located approximately 254 light-years away. It has a 10-day orbital period of rotation and is located in one of the brightest stars found in the mission "Kepler" K2 ".

The astronomers explain that the brighter the star, the more we can learn about a planet that is wrapped around it. And in the future, with the launch of more powerful telescopes will be able to get more and more clear images of detected objects. It is possible that with new technology, scientists will be able to even get information about how the atmospheres of exoplanets already discovered (eg, system TRAPPIST-1), and those facilities that have yet to be found. Search for exoplanets, of course, linked to the desire of scientists to find extraterrestrial life. But only partly. There is also important statistics that will allow at least roughly understand how all the planets may be in space: how many of them can be attributed to the Earth-how - to gaseous. Ultimately, this will let you know how it even our solar system is unique and unique, and the way it fits into the overall picture of the universe.