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.
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∙ 10y agoin 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
The core contracts, raising the temperature and increasing the size of the region of hydrogen shell-burning.
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
After the Sun leaves the main sequence (By running out of fuseable hydrogen) it will become an asymptotic red giant. After that, when it runs of of all fuel, stellar winds will blow away the Sun's envelope into a protoplanetary nebula (and eventually a planetary nebula) with a white dwarf in the middle, which will slowly cool to background temperature over ten quadrillion years.
most stars you see in the sky are main-sequence stars because stars spend most of there life time as a main secuence stars then they turn into red giants and enggulp the inner planets blow off there outer layer and become white dwarf the will eventually die and give off huge clouds off gas and will become a new star.
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
The core contracts, raising the temperature and increasing the size of the region of hydrogen shell-burning.
red giant
This basically happens when the star runs out of hydrogen-1 fuel. After that, it starts to fuse helium-4 into heavier isotopes, but this requires a new pressure/temperature balance - outside the main sequence.
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.
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
Hydrogen fusion to make helium. When a star runs out of hydrogen in its core to fuse, it begins collapsing, leaves the main sequence, then ignites helium fusion to make carbon, becoming a red giant.
After the Sun leaves the main sequence (By running out of fuseable hydrogen) it will become an asymptotic red giant. After that, when it runs of of all fuel, stellar winds will blow away the Sun's envelope into a protoplanetary nebula (and eventually a planetary nebula) with a white dwarf in the middle, which will slowly cool to background temperature over ten quadrillion years.
most stars you see in the sky are main-sequence stars because stars spend most of there life time as a main secuence stars then they turn into red giants and enggulp the inner planets blow off there outer layer and become white dwarf the will eventually die and give off huge clouds off gas and will become a new star.
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