This discovery promises to help scientists better understand how, where and when our solar system was formed, and, quite possibly, will guide us on the best candidates among extra solar planets where life could exist.
About 4.5 billion years ago, a huge cloud of gas collapsing located in a giant interstellar cloud, gave birth to our Sun, as well as a host of other stars. When the collapse phase ended, formed inside the supernova scattered in it barium and yttrium, endowing congestion unique chemical signature. After a time, the accumulation section and scattered billions of stars with this unique signature throughout the Milky Way.
For the detection of one of these stars a team of scientists led by Ivan Ramirez of the University of Texas conducted a very extensive work. HD 162826 in nature is the sister of our sun and is located relatively close, only 110 light years away. Star can be seen even with the aid of binoculars and telescopes feeble. It is located next to the star Vega in the constellation Hercules.
Ironically, it turns out that astronomers from McDonald Observatory of West Texas studied the star of the past 15 years, without knowing that she is the sister of our Sun. Scientists have found that around no large planets, but researchers do not lose hope that in this system may be present smaller planets like our Earth.
About a month later, researchers will collected scientific data from the Space Telescope Gaia. Thanks to them, employees will be able to calculate a more accurate distance and the trajectory of one billion stars in our galaxy. This possibility is open to astronomers huge amount of new information that will allow them to continue searching twins our Sun. And the effectiveness of this search can be just above the proposed Ramirez and his team method.
The more stars the twin scientists discover, the more likely that they will be able to learn more about where and when our Sun formed within the solar system could have formed life.