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Is a white dwarf considered a main sequence star?
No, a white dwarf is not considered a main sequence star. A main sequence star is a star that is still fusing hydrogen in its core. A white dwarf is the remnant of a low to medium mass star in which fusion has stopped.
Is a white dwarf older the a red dwarf?
Not necessarily. A white dwarf is simply the remains of a low to medium mass star that has died. A red dwarf is a low mass star. Since red dwarfs last longer than medium mass stars, one could easily be older than a white dwarf.
What stars form the smallest white dwarfs?
Generally small stars. A very low mass star (< 0.5 solar mass) will produce a helium white dwarf.
What is a star that has collapsed after using its fuel?
A collapsed star after using up its fuel is called a white dwarf, neutron star, or black hole, depending on its mass. White dwarfs are remnants of low to medium mass stars, neutron stars are remnants of massive stars, and black holes are formed when very massive stars collapse.
What is the difference between stars that become dwarf stars and stars that become neutron stars?
A star that becomes a white dwarf simply does not have the mass to become a neutron star. White dwarfs are the the remnants of a star very similar to our own sun in mass, where it takes a much more massive star to create a neutron star, Like the star Betelgeuse is a prime example of a star that does not have the mass to become a black hole but is massive enough to become a neutron star.
What is a small hot star that is near the end of its life called?
There are small hot stars - White dwarfs, neutron stars but by furtue that they are hot, means they are not near the end of their lives. It takes a long long time for all the residual heat to escape into the Universe. So, there are NO hot stars near the end of it's life.
Is Pluto a white dwarf star?
No, Pluto is a dwarf planet in our solar system, not a white dwarf star. White dwarfs are remnants of low to medium mass stars that have exhausted their nuclear fuel and collapsed. Pluto is too small to undergo nuclear fusion and become a star.
What is the next stage in the life of a lower-mass main-sequence star?
white dwarf. unless you count black dwarf of which none have been observed, only theorized.
Are white dwarf stars young?
No. A white dwarf is a remnant of a dead star.
Does a white dwarf star use hydrogen for energy?
No, white dwarf stars do not undergo nuclear fusion like main sequence stars, including our Sun. White dwarf stars are the remnants of low to medium mass stars, and they use stored thermal energy to shine and gradually cool over time.
Is white dwarf a massive star?
No. A white dwarf is the remnant of a low to medium mass star.
A star that has collapsed after using its fuel?
A collapsed star after using its fuel is called a white dwarf, neutron star, or black hole, depending on its mass. White dwarfs are remnants of low to medium-mass stars, while neutron stars are remnants of massive stars. Black holes are formed from the most massive stars and have gravitational pull strong enough to trap even light.
