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Do Stars expand into giants when hydrogen is exhausted in their centers?
Wiki User
∙ 12y ago
No, a red giant is a massive star, and they do usually explode, not when their hydrogen fuel is depleted, but when it is diminished enough that the star's gravitational force is lessened to the point that it is weaker than the explosive force of the massive number of nuclear explosions occurring in it's core.
Wiki User
∙ 12y ago
Wiki User
∙ 13y agoSimplistically yes.
A red giant occurs before the fuel runs out, but it is the last stages of a stars life.
It would be better to say that a star becomes a red giant when it has almost used up all of it's fuel.
See related question for more information.
Wiki User
∙ 14y agoThe simple answer is a red giant, but depending on the size of the star, it continues to transform.
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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.
Why do red giants expand?
They overheat and expand.
What are the large cool stars that are not in the main sequence?
Large cool stars that are not in the main sequence are known as "red giants" or "red supergiants." These stars have exhausted the hydrogen fuel in their cores, causing their inner regions to contract while the outer layers expand. As a result, they become larger and cooler than when they were on the main sequence. Red giants are typically found in the later stages of stellar evolution, after they have exhausted their core hydrogen and started fusing helium in a shell around the core. They are often reddish in colordue to their lower surface temperature compared to main sequence stars. Red supergiants are even more massive and larger than red giants, representing the final stages of the life cycle of massive stars before they undergo supernova explosions or other dramatic events.
The atmosphere of the gas giants is usually made up of?
hydrogen
Are main sequence stars older than red giants?
No, red giants are generally older than main sequence stars, as red giants have no hydrogen left for fuel, and burn helium instead. where as Main Sequence stars burn hydrogen for fuel.
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.
Do stars expand in size?
Stars expand in size to become red giants, when they start running low on Hydrogen fuel.
Why do red giants expand?
They overheat and expand.
What are the large cool stars that are not in the main sequence?
Large cool stars that are not in the main sequence are known as "red giants" or "red supergiants." These stars have exhausted the hydrogen fuel in their cores, causing their inner regions to contract while the outer layers expand. As a result, they become larger and cooler than when they were on the main sequence. Red giants are typically found in the later stages of stellar evolution, after they have exhausted their core hydrogen and started fusing helium in a shell around the core. They are often reddish in colordue to their lower surface temperature compared to main sequence stars. Red supergiants are even more massive and larger than red giants, representing the final stages of the life cycle of massive stars before they undergo supernova explosions or other dramatic events.
What do blue stars expand to become?
Blue giants.
The atmosphere of the gas giants is made of hydrogen and?
mainly composed of hydrogen and helium
What is the main element found in the gas giants?
Hydrogen.
What type of temperature of the star if it is red?
Low temperature because red giants are star with low temperatures, but very bright. A star forms when a portion of a dense interstellar cloud of hydrogen and dust grains collapses from its own gravity. As the cloud condenses, its density and internal temperature increase until it is hot enough to trigger nuclear fusion in its core (if not, it becomes a brown dwarf). After hydrogen is exhausted in the core from nuclear burning, the core shrinks and heats up while the star's outer layers expand significantly and cool, and the star becomes a red giant.
This light element is common in the sun and the gas giants?
Hydrogen.
The atmosphere of the gas giants is usually made up of?
hydrogen
What gases are found in the atmospheres of gas giants?
Hydrogen and Helium
What Star Expands After Exhausting Its Hydrogen Fuel?
Red Giants:)
