For the first time, astrophysicists have detected a star that appeared from the same cloud of gas and dust as our own sun. Interestingly, there's a -small, but not zero- chance that our related sun has planets warm enough to let life evolve. For folks who have been seeing the rnew Cosmos series, this publication couldn't have been timelier. For instance Neil deGrasse Tyson just illustrated in a recent episode of Cosmos, our home star, alongside with others, made in a gigantic cloud of gas and dust called a nebula. Therefore, it must have supposed "stellar siblings" moving around somewhere fairly near, but to date none have ever been discovered. Well, up until now.
The discovered star, HD 162826, was recognized by Ivan Ramirez and his crew at the University of Texas at Austin. It's positioned about 110 light-years away in the constellation of Hercules. HD 162826 is about 15% more massive than our own sun and it is not observable to the naked eye. Ivan Ramirez's crew was capable to match this star to our own sun by following up on 30 conceivable candidates. The stargazers used high-resolution spectroscopy to get an enhanced understanding of the chemical make-up of these 30 stars. They also studied the orbits of these candidates, specifically where they have been and where they are moving in the tracks about the center of the Milky Way Galaxy. Mutually the orbital calculations and chemical analysis pointed the field of candidates to just one and it was HD 162826.
Image Credit: ESO/L. Calcada.
This specific star, which has been observed and studied for the improved part of 15 years, does not look to have any immense planets circling close to it. Nor does a Jupiter-like planet exist in at the utmost stretches of this solar system. But readings to date have not ruled out the existence of smaller earthly planets. According to Ivan Ramirez, there is possibility, "small, but not zero," that these stellar brotherly stars could host planets that host life.
Ivan Ramirez guesses that when these stars were developing in the birth group, impacts could have knocked masses off of planets, and these remains could have voyaged between solar systems, maybe bringing basic life to Earth. "So it could be argued that solar siblings are key candidates in the search for extraterrestrial life," Ramirez mentioned in an announcement.