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After a high-mass star runs out of hydrogen, the core undergoes nuclear fusion of helium into heavier elements like carbon and oxygen. This process continues until iron is formed, at which point the core collapses and triggers a supernova explosion.

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When a low mass star first runs short of hydrogen in its core it becomes brighter because?

Low mass stars become brighter after depleting hydrogen because all of the hydrogen in the core has been fused into helium. Once this happens, hydrogen fusion begins in the outer layers, which causes more heat and light generation.


Why does a star's hydrogen supply run out?

A star's hydrogen supply runs out because of nuclear fusion in its core. As hydrogen is fused into heavier elements like helium, the star's core temperature increases, causing it to expand and cool. Eventually, the core runs out of hydrogen to fuse, leading to the star's evolution into a different phase.


How is the red-giant formed?

A red giant forms when a star runs out of hydrogen fuel at its core and starts fusing hydrogen in a shell around the core the core. This causes the star to expand and cool.


What happens when you bypass heater core?

you have no heat and car runs normal


What happens when a star burns up all of its hydrogen?

When a star runs out of hydrogen fuel in its core, nuclear fusion slows down and the core contracts while the outer layers expand. The star becomes a red giant as it fuses heavier elements in its shell, until eventually it sheds its outer layers forming a planetary nebula, leaving behind a dense core known as a white dwarf.


When a main sequence star runs out of hydrogen to the core which type of star begins to form?

red giant


The sun will go into its dying stages when what runs out?

The sun will enter its dying stages when it runs out of hydrogen fuel in its core. This will trigger the expansion of the sun into a red giant, followed by the shedding of its outer layers to form a planetary nebula, ultimately leaving behind a cooling core known as a white dwarf.


When a main sequence star runs out of hydrogen to fuel the core of which type of star begins to form?

red giant


What happens during the third stage of a stars life cycle as the star uses up all of its hydrogen?

During the third stage, a star expands and becomes a red giant as it runs out of hydrogen fuel in its core. The core contracts and heats up, causing the outer layers to expand. Eventually, the star will shed its outer layers to form a planetary nebula, leaving behind a dense core called a white dwarf.


What is the process they generates energy into the core of the main sequence star?

Hydrogen fusion to make helium. When a star runs out of hydrogen in its core to fuse, it begins collapsing, leaves the main sequence, then ignites helium fusion to make carbon, becoming a red giant.


The energy source of stars is primarily associated with?

The energy source of stars is primarily associated with nuclear fusion, where hydrogen atoms undergo fusion reactions to form helium, releasing a tremendous amount of energy in the process. This process occurs in the core of stars, where high temperatures and pressures allow fusion to take place.


What happens in a star's core?

There are many nuclear reactions taking place. Actually nuclear fission where the lighter hydrogen combine to form the heavier and inert helium. When the the hydrogen in the core runs out it will lose outward pressure. The star will thus contract which will increase the density of particules and that in turn will increase pressure to a point at which the star will go supernova. If th star is big enough then it may create a black hole when it explodes.