Star Life Cycles

When stars died, chemicals other than hydrogen and helium formed, which led to the next level of complexity—Heavier Chemical Element. Most stars spent about 90% of their life over billions of years on during protons and hydrogen nuclei into helium nuclei. When they run out of fuel, the furnace at the center of the star stopped supporting the star, and gravity took over. Small stars did not have much pressure at the center. They burned hydrogen slowly over billions of years at relatively low temperatures. When they died, they would slowly fade away. However, great stars had so much mass that they can create enormous pressures and temperature, and when the giant stars ran out of hydrogen, the temperature got cranked up even higher, which led the star to collapse. The high temperature that the collapse caused was able to make helium nuclei fuse into nuclei of carbon. When a star used up its helium, it collapsed again, and the cycle started over. The star heated up and began to fuse carbon to form

The life cycle of a star is dependent on its mass. The larger the mass, the quicker it will die out, whereas stars which are no more than half the size of our Sun can live up to hundreds of billion years. However no matter how large the star is, they all begin their lives in a nursery known as a molecular cloud.

The larger a star, the shorter their lifespan is, and they explode as supernovae, blasting out powerful shockwaves that create a chain-reaction that spews throughout the galaxy. Within just a few million years, the galaxy is forming stars up to hundreds of times more than a normal galaxy would. When all of the gas available is used up in about ten million years, the galaxy calms down and the period

What is left after the huge explosion is another dwarf star, a neutron star, or the fierce black hole. A neutron star is about the size of a city like Los Angeles, but has the mass of about two suns. This means it is incredibly dense and has an unbelievable gravitational pull, almost 2 billion times that on earth. In fact, this pull is so strong that it bends radiation and allows astronomers to see the back of the star. They also spin up to 48 thousand times per minute due to the energy from the supernova.

It is now a Red Giant after about 100 million years. The luminosity of the star has increased to around 100 Sols while still having a tiny core which is about a quarter of the mass of the star.

You are probably wondering where did these things come from and how are they formed? Well I am about to tell you, Low mass stars are formed when all the helium has fused into carbon, then the core collapses. As the star collapses, the outer layers of the star are expelled. A planetary nebula is formed by the outer layers a massive star that will undergo a supernova explosion. Then when the low mass star is done forming after billions of years they start to become giants.

The star starts off as a nebula. (Along with every other star). From there, the star would become a protostar. Following the smaller sized star would become a Red Dwarf star. When the star is in this stage, it is in its main sequence and will stay in this stage for a very long time. As time passes the star will begin to become a Red Giant. After this stage in the star’s life, the star will begin to cool down, and become a white dwarf. From the white dwarf stage, the star will be coming to an end. The final stage will come to the black dwarf stage where it would be there for a very very long

When giant stars die in supernova and their core collapse that is when a neutron star is created.This neutron star is several times bigger than the sun.Because the neutrons are tightly put together into a super dense object the supernova is very heavy it weighs about 100 million tons.

After carbon sinks to the middle of the star it also fuses with itself and creates oxygen and now oxygen is at the center of the star. The same process repeats with oxygen and it forms iron. Iron is the last thing that is formed because it does not produce energy, therefore it will not fuse with itself, so it forms the core of the star. The elements in these layers have formed an onion. After iron is settled in the center, the star begins to cool and the star will start to compress. When the star compresses, the temperature begins to increase and eventually the star will explode resulting in a

Black holes are formed when massive stars collapse under the weight of their own gravity (Schoolworkhelper Editorial Team). The nuclear fusion in younger stars creates a constant outward pressure from the core (“Black Hole Images, Facts and Information”). This balances the pull from the gasses in orbit around the core, keeping the star stable (Schoolworkhelper Editorial Team). Once a star’s life is nearing the end, and its gasses have almost all been used up in the nuclear reactions, the star will collapse inward from the gravitational pull without the outward push of the reactions (Schoolworkhelper Editorial Team). This happens to stars of at least six to eight times the mass of our sun (Schoolworkhelper Editorial

About 90 percent of the stars in the universe, are main sequence stars. Stars start their lives off as big clouds of dust and gravity draws the clouds and forms them into one. Mark Morris, made a statement and said “Nature doesn’t form stars in isolation.” “ It forms them in clusters, out of natal clouds that collapse under their own gravity.”

The transportation of energy from the core of the protostar to the visible surface layer of the star begins in a circular motion (as a gas). As a result, this stage connects the gas temperature inside the protostar to the gas density-this enables it to have a polytropic structure. As a protostar emits, it shrinks in scope to produce the energy that replaces the discharged energy. This shrinkage increases both the self-gravity and pressure at the protostar’s core correspondingly. This balance produces a connection between the temperature of the protostar and the gravitational resistance of the star. Eventually, as the radius of the star shrinks, the temperature will surge to the factor that it reduces, thus, its density will further increase. However, the visible layer of the star doesn’t become affected in terms of increase in temperature because its location is set by the skill of light to spontaneously escape from it. Thence, the protostar begins to become more opaque, less luminous, and as an outcome the radiation of light decreases. It takes a long time for the star to reach its main sequence because the decreasing luminosity and the increasing thermal energy cause the rate of shrinkage to slow dramatically. Therefore, the protostar begins its brief life as a charismatic star that diminishes in lustre on a timescale of hundreds of years. As years goes by, the

The life (and, sometimes, death) cycle of a star begins when gravity triumphs over heat. This results in a cloud, composed of gasses and minerals, losing balance, and beginning to contract. Balance for the cloud is not restored, until several radical changes have been experienced by the cloud, and have, subsequently, altered the cloud.

They are formed by this blinding wonder of freezing gasses rubbing together not know that they are creating life. But why should you care. You should care because that is how you are reading this research paper right now. The creation of the first star has sprung up many more stars that have many roles in the galaxy. That star can move onto the formation of a neutron star that is a full on powerhouse that contains. This dense star is 1 out of 1 billion, because this miracle only can be formed when a supernova occurs. But why, why even care about this star that doesn’t even have a role in any human's modern day life. This star has helped people guide through sea and help farmers farm on season. After that there will come the brown dwarf. This star is one of the most unknown galaxy because it isn’t the best at anything. Consequently it is called the failed star because we humans can barely observe the star because of its dim lighting. What does this star do to humans you might ask. Although it is the,” failed star” it is theorized that it holds most of the universe's mass. That is another miracle because how can a useless, unknown, and shunned star be of us. Then finally lived the white star. Just like every other star this one dies too. This star helps us

Indecent bodies like the sun. Stars are made up of big exploding balls of gas, mostly hydrogen and helium. The sun is similarly a star made up of huge amounts of hydrogen, undergoing a continuous nuclear reaction like a hydrogen bomb. Stars come about when vast clouds of hydrogen, helium and dust contract and collapse due to gravity. The clouds came from astronomical plasma from “The Big Bang”, but the dust comes from the supernovae of other stars.