Shulou(Shulou.com)11/24 Report--

CTOnews.com, August 13 (Xinhua)-- recently, astronomers used the Weber Space Telescope to observe a star called Earendel, the farthest known star from Earth.

Earendel is so far from Earth that the starlight captured by the Weber Telescope was emitted one billionth year after the birth of the universe. It is estimated that the age of the universe is about 13.8 billion years. Previous estimates suggest that Earendel is about 12.9 billion light-years from Earth, but astronomers believe that Earendel is now about 28 billion light-years away, considering the expansion of the universe and the time it takes for light to travel. The name of this star comes from Old English, which means "morning star" or "rising light".

Earendel is a huge type B star, about 1 million times brighter than the sun and more than twice as hot as the sun. The star is in the sunrise arc (Sunrise Arc) galaxy and can be seen because there is a huge galaxy cluster WHL0137-08 between Earth and Earendel, which magnifies the light of this distant object. According to CTOnews.com, this phenomenon is called the gravitational lens effect, which occurs when a nearer object distorts and amplifies the light of a distant object. It is reported that the galaxy cluster has increased the light of Earendel by thousands of times.

Astronomers are continuing to analyze data from the Weber Telescope to determine the exact distance of sunrise arc galaxies.

Studying stars and galaxies born very far away and close to the Big Bang could fill some of the gaps in astronomers' understanding of the early history of the universe and give us a glimpse of what the Milky way looked like billions of years ago. It is very inspiring for astronomers that the Weber Telescope can observe such a distant and tiny object. In the future, it may discover the earliest stars formed by primitive elements such as hydrogen and helium after the birth of the universe.

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