Either a giant or a super giant. Giants will eventually collapse on its core and have a little white dwarf left behind, but they will have the same mass and gravity as the old star. Supergiants will collapse but in an explosion, supernova, and they will either become a nuetron star or a black hole.
in some cases it becomes a red giant then later progresses into a wight dwarf . according to the main sequence . in other cases it becomes a red supergiant then a supernova takes place leading the dying star to become either a neutron star or a black hole according to the main sequence
When the Sun runs out of fuel, it will first expand into a red giant, shedding its outer layers and creating a planetary nebula. The core will then contract and heat up, eventually becoming a white dwarf. This process marks the end of its life cycle, transitioning from a main-sequence star to a cooler, dense remnant.
The correct order of these stellar evolutionary stages is main sequence, red giant, white dwarf. A star begins its life on the main sequence where it fuses hydrogen into helium. As it runs out of fuel, it expands into a red giant before shedding its outer layers and collapsing into a white dwarf.
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.
When a main-sequence star exhausts its hydrogen fuel in the core, nuclear fusion ceases, causing the core to contract under gravity and heat up. As the core temperature rises, it eventually becomes hot enough to fuse helium into heavier elements, leading the star to expand into a red giant. This phase may result in the outer layers being ejected, forming a planetary nebula, while the core can either become a white dwarf or, in more massive stars, undergo a supernova explosion, leaving behind a neutron star or black hole.
in some cases it becomes a red giant then later progresses into a wight dwarf . according to the main sequence . in other cases it becomes a red supergiant then a supernova takes place leading the dying star to become either a neutron star or a black hole according to the main sequence
red giant
When the Sun runs out of fuel, it will first expand into a red giant, shedding its outer layers and creating a planetary nebula. The core will then contract and heat up, eventually becoming a white dwarf. This process marks the end of its life cycle, transitioning from a main-sequence star to a cooler, dense remnant.
The correct order of these stellar evolutionary stages is main sequence, red giant, white dwarf. A star begins its life on the main sequence where it fuses hydrogen into helium. As it runs out of fuel, it expands into a red giant before shedding its outer layers and collapsing into a white dwarf.
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.
When a main-sequence star exhausts its hydrogen fuel in the core, nuclear fusion ceases, causing the core to contract under gravity and heat up. As the core temperature rises, it eventually becomes hot enough to fuse helium into heavier elements, leading the star to expand into a red giant. This phase may result in the outer layers being ejected, forming a planetary nebula, while the core can either become a white dwarf or, in more massive stars, undergo a supernova explosion, leaving behind a neutron star or black hole.
A star leaving the Main Sequence indicates that it has exhausted the hydrogen fuel in its core. As a result, the core contracts and heats up, causing the outer layers to expand and cool, leading to the star becoming a red giant. This phase marks the transition to the later stages of stellar evolution.
The "main sequence" is the region (on the HR diagram) for stars which burn hydrogen-1. Once stars use up most of their hydrogen-1 (and have significant amounts of helium-4), they leave the main sequence.
When a main sequence star runs out of hydrogen fuel in its core, it can no longer sustain nuclear fusion, leading to a decrease in outward pressure. This causes the core to contract under gravity, raising its temperature and pressure until it reaches conditions sufficient to fuse helium into heavier elements. Consequently, the star expands into a red giant, and eventually, it will shed its outer layers, leaving behind a dense core, which can become a white dwarf, neutron star, or black hole, depending on its mass.
red giant
The main sequence stars are stars that fuse hydrogen, so the stars that have left the main sequence are the ones that have basically run out of hydrogen. They are the Red Giant stars, Supergiant stars and White Dwarf stars.
Nebulae (gas and dust) protostar (formed by immense pressure in nebulae) ^ becomes either a Brown dwarf (basicall dead :P) or a Main sequence star which becomes: A Red giant (when MSS runs out f hydrogen ) if red giant is small it becomes a white dwarf and does nothing or a planetary nebulae if it's a big one it either becomes a Neutron star or a Black hole