No, a dead star is different from a black dwarf. A black dwarf is a type of stellar remnant, but not all stars become black dwarfs. When a star dies it will leave behind a white dwarf, a neutron star, or a black dwarf as a remnant depending on its mass. Given enough time a white dwarf will eventually cool to a black dwarf. The universe is not old enough for this cooling to have happened yet.
black dwarf
A black dwarf does not burn anything. A black dwarf is the cooled remnant of a dead star.
black dwarf
When it turns into a black dwarf neutron star or black hole.
White Dwarf then Black Dwarf=Dead Star
No. The sun is a main sequence star. A black dwarf is the remnant of a dead star that has cooled. The universe is not old enough for this to have happened yet.
A black dwarf is not a planet; it is the remnant of a long dead star that has cooled. A black dwarf would range from about 7,000 to 17,000 miles in diameter.
A black dwarf is a dead white dwarf. By dead, I mean a star that no longer burns. A white dwarf, in turn, is a dead "moderate" star (a star like our sun). So a black dwarf is a star that's died twice, with mass not much higher or probably lower than that of our sun. A supernova, is the "death" of a star that's really huge. By huge, I mean it has a mass that's considerably higher than that of our sun. That kind of star doesn't turn into a white dwarf. Rather, it becomes either a neutron star (pulsar or non-pulsar) or a black hole.
If it was not a huge star, it will probably become a black dwarf. If it was a huge star, there is a chance of it becoming a black hole.
It is dead. It becomes a black dwarf, just a rock.
It is a black dwarf
Yes. It is a black dwarf.