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A star that has exhausted the hydrogen in its core will become a red giant or supergiant.
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A star that is a has exhausted its supply of hydrogen?
A star that is a white dwarf has exhausted its supply of hydrogen.
What is a star called that has exhausted its supply of hydrogen?
A star that has exhausted its hydrogen supply is called a red giant or a red supergiant, depending on its initial mass. This stage occurs when the star begins to fuse heavier elements in its core, leading to its expansion and eventual evolution into a white dwarf, neutron star, or black hole.
What is a star called that has exausted its supply of oxygen?
Stars are powered by fusing hydrogen, not oxygen. A star that has exhausted the hydrogen in its core may continue to burn as a red giant.
What type of stars are red giants?
These are stars that have exhausted their core's supply of hydrogen by switching to a thermonuclear fusion made of hydrogen in a shell that surrounds the core.
When a star has exhausted its supply of hydrogen?
When hydrogen in the core of the star is depleted, a balance no longer exists between pressure and gravity. Core contracts, temperatures incrase. This causes outer layers to expand and cool. This star is called a GIANT.
What is a star that has been exhausted of its supply of hydrogen?
A star that has exhausted its supply of hydrogen will evolve into a red giant or supergiant, depending on its initial mass. Eventually, it may undergo a helium flash and fusion of heavier elements before collapsing into a white dwarf or supernova.
What is a star that has exhausted its supply of hyderogen?
A star that has used up it's hydrogen supply because a "Red Giant". The star increases in diameter as it turns into a red giant.
What is the Rigel star composed of?
Rigel has exhausted its supply of hydrogen and so is now composed mainly of helium, with minute quantities of heavier elements.
What is a blue dwarf?
A blue dwarf is a hypothetical type of star that develops from a red dwarf after it has exhausted much of its hydrogen fuel supply. Since red dwarf stars fuse hydrogen slowly and are fully convective (allowing a larger percentage of their total hydrogen supply to be fused), the current age of the universe is not old enough for any blue dwarfs to have formed yet.
Why do stars evolve off of the main sequence?
Because they have exhausted their supply of hydrogen in the core. They might reenter the main sequence later, but that will be using hydrogen in the shell (the branch phase) rather than the core.
Stars core is exhausted of hydrogen its oter layers and cool?
It's a Giant
What makes a fusion stop in the main sequence stage?
A fusion reactor stops in the main sequence stage when it runs out of hydrogen fuel at its core. As hydrogen is depleted, the fusion rate decreases, resulting in a decrease in energy production. At this point, the star will begin to expand and evolve into a different stage of its lifecycle.
