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A large cool star formed when a star runs out of hydrogen?

red giant


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.


What begins the death of a star?

Usually the fact that the star runs out of fuel.


When a star runs out if hydrogen what does it use as fuel source?

helium


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

red giant


What is a large cool star form when a star runs out of hydrogen?

When a star runs out of hydrogen in its core, it starts fusing helium into heavier elements like carbon and oxygen. This process causes the outer layers of the star to expand and cool, becoming a red giant.


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

red giant


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 element does a star run out of that causes them to die?

A star dies when it runs out of fuel to sustain nuclear fusion in its core. This fuel is mainly hydrogen, which gets converted into helium through nuclear fusion. Once the star runs out of hydrogen, it will expand and eventually collapse, leading to its death in a supernova explosion.


What element is the fuel for main-sequence star?

Stars a giant balls of gas mainly hydrogen and helium. inside a star there are such temperatures that hydrogen fusion occurs making helium and when the star runs outta hydrogen it gets hotter and helium fusion occurs then carbon fusion etc etc. so ultimately it depends on the age of the star.


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.


What happens to the core of a high-mass star after it runs out of hydrogen?

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.