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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.
What else can I help you with?
Why do red giants expand?
Red giants expand because they have exhausted the hydrogen fuel in their cores and have started fusing helium. This helium fusion causes the outer layers of the star to swell and expand, making the star larger and cooler overall.
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.
Stars leave the main sequence when they?
Stars leave the main sequence when they have exhausted their core hydrogen fuel, causing them to expand into red giants or supergiants. This transition marks the end of stable nuclear fusion in their cores and the beginning of the next phase in their lifecycle.
What are the large cool stars that are not in the main sequence?
Red giants. They are medium and large stars that have used up all of their hydrogen and gave begun burning the helium. They begin to expand while they are in their "dying" phase. They will ultimately become a white dwarf if they were a medium sized star during their main sequence, or they will become a black hole or a neutron star if they were a large star during their main sequence.
Why are red giants bright?
A star's magnitude is assosiated with its surface area/size. The reason Red giants may be brighter than those within the same colou (B-V), is simply due to the fact that it is much larger. (which results in an increased magnitude/brightness/luminosity.)
Why do red giants expand?
Red giants expand because they have exhausted the hydrogen fuel in their cores and have started fusing helium. This helium fusion causes the outer layers of the star to swell and expand, making the star larger and cooler overall.
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.
Stars leave the main sequence when they?
Stars leave the main sequence when they have exhausted their core hydrogen fuel, causing them to expand into red giants or supergiants. This transition marks the end of stable nuclear fusion in their cores and the beginning of the next phase in their lifecycle.
When do stars become red giants?
Stars become red giants when they have exhausted their hydrogen fuel in the core and start burning helium, causing the outer layers to expand and cool. This expansion turns the star into a large, cool, and luminous red giant.
What are the large cool stars that are not in the main sequence?
Red giants. They are medium and large stars that have used up all of their hydrogen and gave begun burning the helium. They begin to expand while they are in their "dying" phase. They will ultimately become a white dwarf if they were a medium sized star during their main sequence, or they will become a black hole or a neutron star if they were a large star during their main sequence.
Why are red giants bright?
A star's magnitude is assosiated with its surface area/size. The reason Red giants may be brighter than those within the same colou (B-V), is simply due to the fact that it is much larger. (which results in an increased magnitude/brightness/luminosity.)
Stars spend most of their life span as giants?
Stars spend most of their life span in the main sequence phase, where they are fusing hydrogen into helium in their cores. After exhausting their hydrogen fuel, they will expand and cool down to become red giants before eventually evolving into white dwarfs or other stellar remnants.
Why are red giants so bright?
Red giants are bright because they have expanded to a larger size, allowing them to emit more light. They are in a later stage of their life cycle where they have exhausted their core hydrogen and are fusing helium and other elements in their cores, releasing a large amount of energy in the process.
The atmosphere of the gas giants is made of hydrogen and?
mainly composed of hydrogen and helium
What planets are mosty balls of gas?
Jupiter and Saturn are primarily composed of gas, with small rocky cores at their centers. They are known as gas giants due to their large volumes of hydrogen and helium gases.
Explain why giants are not in the main sequence of the H-R diagram?
Giants are not in the main sequence of the H-R diagram because they have evolved past the main sequence stage. Giants are stars that have exhausted their core hydrogen fuel and have expanded and cooled as a result. They occupy a different region on the H-R diagram known as the red giant branch or red supergiant branch.
