A tiny ancient star reveals the true age of our galaxy

When we stare at the night sky, away from the glare of bright city lights, we can see our Milky Way extending from the horizon to the horizon, like a gleaming starlight smile - telling us that we are just a small part of the vast, ancient, mysterious. Astronomers have always believed that our galaxy is very old. In fact, scientists have suggested that it may be as old as the universe itself. In November 2018, astronomers used it. from

Gemini Observatory from

 They announced that they had discovered a small star, probably the oldest star in our galaxy. Despite its small size, this little star may play a disproportionate role in our scientific understanding of the true age and history of the galaxy. This ancient star also reveals the mysterious situation that emerged shortly after the birth of the new universe in the Big Bang about 14 billion years ago.

The from

Gemini Observatory from

 Consisting of two 8.1 m diameter optical/infrared telescopes, the entire sky can be scanned together. from

Gemini North from

 with from

Gemini South from

 They are located in two different locations in Hawaii and Chile.

This little legendary star has a very interesting story. It is ancient, small, and most importantly composed of elements that are very similar to the elements formed by the Big Bang. In order to accommodate such a star, our Galaxy discs may be as much as 3 billion years old. Our age for the Milky Way is about 13.51 billion years, and our universe is considered to be about 13.8 billion years.

"Our sun may be the descendant of thousands of short-lived, massive stars that have lived and died since the big bang. However, the most interesting thing about this star is that it has only one ancestor to separate it from its starting point. Everything," Kevin Schlaufman The doctor commented on November 5, 2018. from

Gemini Observatory press release. from

  Dr. Schlaufman is the lead author of the Johns Hopkins University research report in Maryland, published on November 5, 2018. from

Journal of Astrophysics.

According to the Big Bang theory, the first generation of stars consisted almost entirely of hydrogen and helium. The birth of the big bang of the universe only formed the lightest atomic elements - hydrogen, helium and a small amount of lithium from

[ Big bang nuclear synthesis] from

 . All atomic elements heavier than heavier - called from

metal from

 Astronomers - created by stars in their nuclear furnace from

[Star nuclear synthesis]. from

  Or, in a powerful and fiery supernova explosion, the heaviest atoms of all atomic elements, such as gold and uranium, herald the explosive extinction of massive stars. from

[supernova nucleosynthesis] from

 .

When stars are destroyed, their star material is recycled to form new stars. Newborn stars - as a legacy of their previous generations of stars - all the old stars have built more important elements. The oxygen you breathe, the iron in your blood, the calcium in your bones, the sand under your feet, the water you drink, are all formed in the core of countless stars in the universe.

Astronomers refer to stars that are depleted of heavier atomic elements. from

a low-metal star. from

  "But this is so low from

Metallic from

 It is called from

Super metal poor star from

 - This star may be one in ten thousand," Dr. Schlaufman continues to explain from

Gemini Observatory press release.

The birth of the first generation of stars was one of the most fascinating mysteries that plagued cosmologists. It is believed that the oldest stars have ignited as early as 100 million years after the big bang. However, the first star formed in the universe is different from the stars we know today. This is because they are formed directly from the original raw gas produced by the big bang itself. These primary gases are primarily hydrogen and helium, and the two lightest atomic elements are thought to be folded together by gravity to form a tighter and tighter junction. First generation core from

Protostar from

 The first flames that appeared in our ancient universe were in the mysterious dark and cold heart of these extremely cold primitive gases - under their own ruthless, heavy gravitation. The first star is formed in the same way, even with the elements that stars use today. The first stars are called from

Population III star from

 . Our own sun is a member of the youngest stellar generation and is classified as from

Population my star. from

  Sandwiched between the youngest and oldest stars is from

Population II stars.

It has been suggested that a large number of original from

Population III star from

 Their existence is thought to be the cause of the transformation of the universe from now to the present. These mysterious and dazzling first stars change the dynamics of the universe by heating the universe and ionizing existing gases.

Starlight, starlight

The from

Metallic from

 A star refers to a portion of a material made up of atomic elements - from

Metal - from

 It is heavier than hydrogen and helium. Stars make up most of the atomic [visible] matter in the universe, consisting mainly of hydrogen and helium. A star, no matter which generation of stars it belongs to, will be a huge rotating, hot sphere consisting mainly of hydrogen. the term from

metal from

 In astronomical terms it does not mean that it is the same as in chemistry. from

Metal bond from

 Cannot exist in the core of the star's extreme heat, and the strongest chemical bond can only be called in the outer layer called the "failed star" from

Brown dwarf. Brown is dwarfed from

 May be born like real stars, but they never fully reach the necessary mass to ignite their nuclear fusion star flame.

The from

Metallic from

 Stellar provides an important tool for astronomers to determine the true age of a particular star. When the universe was born, its "ordinary" atomic matter was mainly hydrogen, which was through the original process. from

Nuclear synthesis from

 Continue to make a lot of helium and a small amount of bismuth and lithium - but not heavier. For this reason, ancient from

Population II from

 with from

Population III star from

 Have a lower from

Metal from

 Than younger from

Population, my star from

 Like our solar terminology from

Nuclear synthesis from

 The process itself is defined as the process by which heavier atomic elements are produced by lighter atomic elements. from

Nuclear fusion from

 [the from

fusion from

 Atomic nucleus.

Therefore, the star from

Population I, II, from

 with from

III from

 , shows an increase from

metal from

 The content of the age decline. from

Population, my star from

 Like our sun, the metal content is the highest, and from

Population III star from

 Already exhausted from

metal. Population II from

 The stars are only trace from

metal.

a huge star smile

A galaxy like our Milky Way is a gravitational system of stars, interstellar gas, dust, and stellar relics. from

Dark matter. Dark matter from

 It is believed to consist of foreign non-atomic particles that do not interact with light or any other form of electromagnetic radiation, making it invisible. However, most astronomers believe that it does exist in the universe because it does interact with objects that can be observed. from

Dark matter from

 It is a richer form of matter than the "ordinary" atomic material that we are most familiar with in the universe.

This word from

galaxy from

 From itself in Greek from

Galaxias from

 , literally translated as from

"milky" from

 . The size of a galaxy can range from a dwarf star with only a few hundred million stars to a galaxy with an amazing hundred. from

trillion from

 The stars inhabit, each surrounding the centroid of the Milky Way.

Known as a relatively small, spherical and tightly bound set of stars from

Globular cluster from

 It is one of the oldest objects in our galaxy. The age of each star in the Milky Way can be estimated by measuring the abundance of long-lived radioactive elements such as cesium-232 and uranium-238. Then, astronomers can compare the results to their original abundance estimates using a technique. from

Nucleoscosochology.

Found a few stars in our galaxy from

Aura from

 The age measurement is very close to this 13.8 billion year old universe. In 2007, a star living in the galaxy from

Halo, from

 Dubbing from

HE 1523-0901 from

 It is estimated to have a history of about 13.2 billion years. As the oldest known object that lived in our galaxy at the time, this measurement set a lower limit on the age of our galaxy.

The stars live in the era of the Milky Way from

Thin plate from

 Also an estimate used by astronomers from

Nucleoscosochology. from

  Stellar measurement from

Thin plate from

 It shows that they were born about 8.8 billion years ago - about 1.7 billion years. These measurements show that there are nearly 5 billion years of separation between the formation of the Milky Way. from

Aura from

 with from

Thin plate. from

  Recent studies of the chemical properties of thousands of stars have shown that in galaxies, the planet may have fallen by an order of magnitude. from

Disk from

 80 to 10 billion years ago, when the interstellar gas was too hot to produce new baby stars at the same speed as before. Although it may seem counterintuitive, in order for a hot new star baby to be born, things must become very cold.

Satellite galaxies around our Milky Way are not randomly assigned. In fact, they appear to be the result of an ancient split of a larger system that produces a ring structure with a diameter of about 500,000 light years and a width of 50,000 light years. Close and catastrophic tears between galaxies...

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