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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.
How is a star able to begin helium fusion after it ran out of hydrogen?
The basic idea is that once a star runs out of hydrogen fuel, it starts contracting until it gets hot enough to fuse helium into heavier elements. This happens at temperatures that are quite a bit higher than the temperatures required to fuse hydrogen into helium.
What is the fourth stage of a star?
the fourth stage of a star is "supergiant" and its also the hottest stage
What is the most common element in a young star?
The most common element in a young star is hydrogen. During the star formation process, vast amounts of hydrogen gas collapse under gravity to form a new star. This hydrogen fuel is what powers nuclear fusion reactions in the star's core, creating energy and sustaining the star's brightness.
A star evolves off the main sequence when?
A star evolves off the main sequence when it runs out of hydrogen fuel in its core. This causes the core to contract and heat up, leading to the expansion of the star's outer layers. This marks the beginning of the star's evolution into a red giant or supergiant, depending on its mass.
How is a star like the sun die?
A star will die once it runs out of hydrogen. If the star is larger than 5 times the size of our sun, it will turn into a supernova while the rest of the material is condensed into a black hole. If the star was smaller, it will just turn into a white dwarf.
What does a star turn into after it runs out of fuel?
a dwarf star
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
What is a fuel for a star?
Most stars process Hydrogen using nuclear fusion and turn it into Helium.
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 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.
