Does the Sun become more massive when it dies and becomes a red giant? 10

No, it will be smaller.

After the formation of the sun, the mass can no longer increase. At the stage of a red giant, the outer layers of the Sun expand dramatically and lose a lot of gas until the core is exposed, and the core becomes a white dwarf.

The large amount of gas that is lost will slowly form a planetary nebula.

No! Thermonuclear fusion reactions are taking place all the time in the sun's body. According to the mass-energy reaction equation, this reaction consumes a large amount of matter.

This is the root of why the sun shines brightly. The sun has about 700 million tons of matter every second participating in nuclear reactions, and at the same time converting 400 tons of matter into energy, which is light and heat. So the mass of the sun is getting smaller and smaller.

But as nuclear fusion progresses, the Sun's volume will eventually get larger and larger.

The Sun will expand dramatically, entering the so-called "red giant" phase, its brightness will increase to 100 times that of today, and swallow up its nearest planets such as Mercury and Venus, and the Earth will be "scorched", and life will no longer be able to survive. Over time, the Sun will run out of all of its nuclear fuel faster and faster, enter its last years, and collapse into a faint white dwarf. In other words, although the Sun will swallow up the small celestial bodies around it, it will not increase its mass compared to the mass it emits.

No, the heat expands and contracts, and when it dies, the heat runs out! Even if it doesn't shrink, it won't swell!

It doesn't get bigger, it gets smaller.

When the solar hydrogen is burned out, the core collapses, and then the volume expands by a factor of 200.

Like many stars, the Sun doesn't last forever. It will be at the end of its lifespan"Death"。The current Sun is a star in its prime, born 4.6 billion years ago, and astronomers estimate that it will live for about 5 billion years.

The sun was born in the distant past, and it is impossible for us to see it die in the distant future. The evolution of solar life is too slow for us to notice. So, how do we know the beginning and end of the sun's life?

The good news is that many sun-like stars can be found in our galaxy at different stages of evolution. This is a brilliant way for astronomers to create a picture of the evolution of the sun.

The mass of the sun is not large, and its lifespan is 10 billion years. Because astronomers have observed the death of other sun-like stars, they know when and how the sun will come to the end of its life. Over the next few billion years, hydrogen in the sun's core will be consumed by nuclear fusion, producing more and more helium and nuclear energy.

But inside the thick shell of this helium-rich new core, hydrogen fusion continues. As a result, the outer shell gradually expands into space, and the Sun slowly turns into a giant star. Due to gravity, helium nuclei are also getting heavier and denser.

In about 5 billion years, the density of the helium nucleus will be enough to trigger another round of helium fusion. Helium fusion produces more energy than hydrogen fusion, causing the Sun's outer shell to expand outwards into a bloated red giant. The shell gradually cools and turns red.

Red giants can reach 100 million kilometers in diameter. When the Sun becomes a red giant, it expands to such a huge size that poor Mercury and Venus, which are closest to the Sun, will be engulfed by the Sun. Their rocks and metals will turn into rows of slag and hot gas, merging with the outer layers of the sun.

This is desperately bad news for life on Earth: in less than a billion years, the sun's radiation output will boil our oceans. Astronomers say our planet was lucky to have escaped being swallowed by a red giant.

Because the Sun may appear to be pulsating, expanding and contracting in alternating cycles of about 24 hours, its external gases are blown into Liang Feng space by radiant winds. The resulting loss of mass will weaken the Sun's gravitational pull on the Earth, and the Earth's orbit will expand outward as a result. This effect won't save Mercury and Venus, but Earth may just survive.

Sadly, life on Earth, including us, will cease to exist unless we have migrated to habitable planets outside our solar system before the catastrophe strikes.

The main reason is that the sun will continuously release heat, digging celery and the sun is still undergoing nuclear fission, and the heat released causes the sun to become a red stool Sanchang.

Because after many years, the hydrogen in the sun has been converted into thermonuclear energy, and when the reaction stops, it will become a red giant, and the outer shell will expand dramatically.

Because the sun also has a lifespan, there will always be a day when it dies.

Because many years later, the hydrogen gas outside the sun has turned into a thermonucleus, and when the reaction is contained, it becomes a red giant, and the outer shell expands dramatically.

Scientists** The Sun will turn into a red giant in 5 billion years, which will put the survival of the Earth in jeopardy. But for life on Earth, it will take another billion years to escape the planet. What happens to Earth when the Sun turns into a red giant?

That starts a billion years from now. The sun is getting brighter and brighter. Over the past billion years, the sun's brightness has increased by about 10%, which is beneficial for life on Earth.

The planet is warming. Creatures can survive on the ocean floor. The Sun's brightness will continue to increase over the next billion years. If that happens, the earth will become too hot, the water on the earth will evaporate, and life on the earth will be in danger of extinction.

"Apparently the model ** affects the helium core flash, but no observations are found to reflect it directly", Aarhus University, Denmark.

said the professor. Stars like our Sun are powered by the fusion of hydrogen into helium at a temperature of 15 million Kelvin. However, helium needs a much warmer temperature than hydrogen (about 100 million K) to start fusing into carbon, so it just accumulates in the inner core while the surrounding hydrogen shell continues to burn.

During this time, the Sun expands to the size of the Earth's orbit.

The core of the star reaches perfect conditions, triggering a violent helium burn: a helium nuclear flash. Over the next 2 million years, the core underwent several flashes before entering a more static state, where for about 100 million years, all the helium in the core burned into carbon and oxygen.

In our lifetime of low-mass stars.

Zirconium nuclear flash plays an indispensable role. However, it is difficult to collect data from the cores of distant stars, so scientists have not been able to observe this phenomenon. Modern space observatories such as Kepler.

The power of COROT and now NASA's Transiting Exoplanet Survey Satellite (TESS) could change that.

Very sensitive measurements from space make it possible to observe subtle oscillations in the brightness of a large number of stars. The flash of the helium nucleus produces a series of different waves that pass through the star. This causes the star to vibrate like a bell, showing subtle changes in overall brightness.

The movement of stellar pulsations allows astronomers to understand the processes inside stars, just as geologists learn about the interior of the Earth by studying **. This technique, known as astracism, has evolved into astrophysics.

a thriving field. Core lightning happens very suddenly, like **, starting with a very large energy event, and then over the next 2 million years, in the lives of most stars, a series of weaker events occur in a relatively short period of time.

It's just some inferences, there is no scientific basis, inferences based on some data, inferences based on some reactions of the sun, inferences made on the basis of some nuclear fusion on the surface of the sun, there are no clear inferences, there is no clear basis.

I don't think there is any scientific basis for this, because scientists are still investigating this matter, so we must look at it rationally, but I believe that the scientists will definitely give us an answer.

The solar system is an ancient cosmic system, and the sun also has a long history. This statement is only an inference. There is not enough evidence to argue for this.

That's not something we should worry about now, humanity will solve it then, and we have to have faith in the future.

Hydrogen currently accounts for the total mass of the sun's photosphere, helium does, and although 600 million tons of hydrogen are converted every second, it seems that the sun still has enough fuel so far. Scientists have calculated that it will take more than 7 billion years for the sun to burn up all the hydrogen inside it.

The Sun will turn into a red giant.

The sun is a giant ball of heat, without which we would never see the light of daytime. Like any life on Earth, the Sun gives us life, but we all know that in 5 billion years the Sun will become a red giant, and in a billion years the Sun will become so hot that the water in all the oceans on Earth will evaporate, and there will be no life without water.

When it becomes a red giant, the Sun expands in size. The solar energy we see so far holds 1.3 million Earths with a diameter of 1.4 million kilometers. When it becomes a red giant, the diameter of the Sun will become 300 million kilometers, the Sun will expand into the Earth's orbit, and Mercury, Venus, will be engulfed, and the Earth will be engulfed.

Sun Introduction:

The Sun was formed about 100 million years ago in a cloud of collapsed hydrogen molecules. The time of the formation of the sun is measured in two ways. The current age of the Sun in the main sequence zone, confirmed using computer models of stellar evolution and primordial nucleosynthesis, is about 100 million years old.

This is very consistent with the radioactive dating of the oldest material of the sun is 100 million years old.

The Sun does not have enough mass to explode into a supernova, and instead in about 5 billion years it will enter the phase of a red giant, with the helium core contracting to resist gravity and the broad acacia heating up. The hydrogen cladding in close proximity to the core accelerates fusion as the temperature rises, and as a result, the heat generated continues to increase and is conducted to the outer layer, causing it to expand outwards as quickly as possible. When the temperature of the core reaches 100 million K, helium fusion will begin and burn to produce carbon.

Since the helium core at this time is already equivalent to a small white dwarf.

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Analysis: Of course it will, by the time the sun becomes a red giant, it will be about 4 billion years......By the time a star reaches the end of its main sequence phase, the hydrogen inside the star, with the exception of the outer shell, has essentially been converted into helium and the thermonuclear reaction has stopped. At this time, the central part of the star will contract under the influence of gravity and release a huge amount of energy, causing the outer shell to expand dramatically, and the whole star will be blown up like a balloon.

The expansion of the outer shell increases the surface area of the star, lowers the surface temperature, and increases the total luminous light. In this way, it becomes a red star with a high brightness and low temperature - a red giant.

In the interior of the red giant, although the hydrogen has been almost depleted, due to the internal contraction of the temperature rises, the helium polymerization reaction begins, and it begins to burn again, and can maintain it for a long time. Stars like the Sun can stay in the red giant phase for about 1 billion years.

The diameter of the Sun will also engulf the entire solar system, and all the planets will be vaporized.

The surface temperature of the sun is as high as 6,000 degrees Celsius, and the core temperature is as high as 15 million degrees Celsius.

As the sun ages, it grows larger and hotter. The temperature of the Earth's surface will mean that the temperature of the Rotjeong will become higher and higher, and the oceans will be heated to a boil. The Earth will become lifeless.

In 5 billion years, the Sun will become a red giant, engulfing Mercury and Venus. The planet evaporates after being swallowed up by the sun.

We can only observe the surface of the sun, as for its interior, it is unknown. The distance between the Sun and the Earth is 149 million kilometers. The diameter of the Sun is 1.39 million kilometers.

Without the sun, nothing can grow. The Sun is a gaseous planet. The sun is surrounded by a circle of light, which is called the corona.

During a total solar eclipse, the sun is blocked, and we can still see the corona that surrounds the sun. There are some black spots on the surface of the sun called sunspots. Sunspots are gas storms on the surface of the sun.

Sunspots move with the slow rotation of the sun. Sunspots play an important role in calculating the rotation period of the Sun.

In 5 billion years, the Sun will become a red giant and the Earth will be swallowed!

Yes. At that point, the radius of the Sun will expand 1,000 times that of today, swallowing up about the Earth's orbit. At that time, the sun was extremely active, and it had been ejecting a lot of matter, and its own mass had plummeted, and the earth might not have been swallowed up because of the decline in the sun's gravitational pull, and the radius of rotation had increased, but even so, the earth had changed beyond recognition, and it had already become a black sphere, and stars that were more than 8 times the mass of the sun would suddenly become supernova after the red giant, and the sun was not massive enough, and the thermonuclear expansion force was less than the collapse of its own gravity, and it would become a white dwarf about the size of the earth, glowing faintly, and it would take another 150 billion years to die