When stars inter into the red giant stage from the main-sequence stage, supergiant stars can form. The zone of hydrogen burning expands the star outward leaving an inert helium core. This outward movement causes hydrogen fusion in the outer shell of the star making the star thousands of times larger.
Blue supergiants are among the most massive and luminous stars in the Universe. They can be up to 20 times more massive than the Sun and have radii several hundred times larger. These stars are relatively rare compared to other types of stars.
The biggest and brightest stars are called supergiants. These stars are much larger, hotter, and more luminous than our Sun. Examples of supergiants include Betelgeuse and Rigel in the constellation Orion.
A star much larger than our Sun is typically called a "supergiant." Supergiants are among the most massive and luminous stars in the universe, often exceeding several times the mass of the Sun. They can be classified into different types, such as red supergiants and blue supergiants, based on their temperature and color. These stars eventually undergo supernova explosions at the end of their life cycles, leading to the formation of neutron stars or black holes.
Variable stars and main sequence stars can have similar brightness. Variable stars, like Cepheid variables, can fluctuate in brightness over time, while main sequence stars maintain a relatively stable brightness due to their fusion processes.
No. Only massive stars can become supergiants.
No, the largest star known is a Red Hypergiant (vy canis majoris) which are much larger than supergiants. Most of the largest stars are red hypergiants followed by red supergiants.
Blue supergiants are among the most massive and luminous stars in the Universe. They can be up to 20 times more massive than the Sun and have radii several hundred times larger. These stars are relatively rare compared to other types of stars.
Red supergiants
Red giants, red supergiants and red hypergiants.
Giants or supergiants
Both are red supergiants.
they go boom, and make a supernova
Supergiants are the most massive stars, occupy the top region of Hertzsprung-russell diagram . Supergiants can have 10 to 70 solar masses and luminosity up to hundreds of thousands times the solar luminosity and because of their large masses they have lifespan of few million years and may be less than this value .
The biggest and brightest stars are called supergiants. These stars are much larger, hotter, and more luminous than our Sun. Examples of supergiants include Betelgeuse and Rigel in the constellation Orion.
Red giants, red supergiants.
A star much larger than our Sun is typically called a "supergiant." Supergiants are among the most massive and luminous stars in the universe, often exceeding several times the mass of the Sun. They can be classified into different types, such as red supergiants and blue supergiants, based on their temperature and color. These stars eventually undergo supernova explosions at the end of their life cycles, leading to the formation of neutron stars or black holes.
Variable stars and main sequence stars can have similar brightness. Variable stars, like Cepheid variables, can fluctuate in brightness over time, while main sequence stars maintain a relatively stable brightness due to their fusion processes.