Friday , July 1 2022

Milky Way found an incredible ancient star


Scientists can not explain the age of older stars that are older than the Milky Way

The star is 13.5 billion years old. Photo:

The star is 13.5 billion years old. Photo:

Astronomers at the Australian National University announced they had found one of the oldest stars in the universe. And it's very close – just 407 light years from Earth, which means it's inside the Milky Way galaxy.

The star is located in the Rho Ophiuchus star-forming region, and its age is 13.5 billion years old – it's the oldest star in our galaxy. This means that only 300 million years are younger than the age of the universe itself.

the_flying_saucer_protoplanetary_disc_around_2mass_j16281370-2431391 "width =" 100%

Protoplanetary disk around 2MASS J16281370-2431391

Photo: Wikipedia

The find was called 2MASS J18082002-5104378 B. It was all this time that it was left unnoticed, because it was small and trash. Ancient star was discovered only because it was a larger-sized bright companion star with a protoplanetary drive.

2MASS J18082002-5104378 contains only 10% of the mass of the sun, and the amount of metals in it is 10% of the total amount of metals on Earth. Astrophysicist Andrew Casey, who participated in the study, admitted that they had never discovered a star with such a small mass and a small amount of metals.

"Such stars are extremely rare – their search is the same as searching for a needle in the haystack. However, thanks to the enormous amount of data collected by earth and space telescopes, we are closer than ever before to the universe," said Astrophysics Andrew Casey

This discovery allows us to see the formation of a star in the universe from another angle. As one of the oldest stars on the Milky Way Plan Disc, the question of the age of our galaxy is revealed. Perhaps she is much older than thought before.

Recall that earlier Detected world objects discovered in the solar systemas well as astronomers the most complete picture of the Milky Way Center.


Source link