Astronomers discovered most distant ordinary star ever existed, which is located at nearly nine billion light years away from the planet Earth, during the observation of the unique cosmic alignment, using Hubble Space Telescope.
The newly found most distant star which is named as ‘Icarus’ is referred by scientists as the ‘blue supergiant’, while the official title of the star is ‘MACS J1149+2223 Lensed Star 1’. the discovery of the star became possible because of the fortunate alignment of the huge galactic cluster, which buckled the light coming from the star, turning it towards the Earth at the same time when the star was amplifying by 2,000 times.
Head of the research team that discovered the star and astrophysicist from the University of Minnesota, Dr. Patrick Kelly said while describing the evidences of the new study that, “In May of 2016, however, a star in the MACS J1149+2223 galaxy cluster also temporarily became aligned and it had the effect of boosting the magnification of Icarus to 2,000 times. They effectively worked together — the cluster actually makes the star in the cluster act like a much more powerful lens.”
Berkeley News reported that the California University researchers have revealed the most distant star Icarus with help of method known as gravitational lensing. Scientists from the university disclosed their research findings in the issue of Nature Astronomy journal on April 2, 2018.
“There are alignments like this all over the place as background stars or stars in lensing galaxies move around, offering the possibility of studying very distant stars dating from the early universe”, said one of the study authors, Alex Filippenko from UC Berkeley, “just as we have been using gravitational lensing to study distant galaxies.”