It will be, eventually, after it goes through a red giant phase and consumes all of the inner planets - probably including Earth. If Earth is still here when that happens, 5 or so billion years from now, there will be no life left.
Convert into a dwarf white star which is really hot, then a neutron star, and finally, a black hole.
If the sun were to run out of fuel, it would eventually expand into a red giant, consuming Mercury and Venus, and possibly Earth. After this phase, it would shed its outer layers to become a planetary nebula, leaving behind its core as a white dwarf. The white dwarf would slowly cool and fade away over billions of years.
That would be "Procyon". Since its mass is only about 1.5 times the mass of our Sun, I would expect it to become a white dwarf.
white dwarf star
No. In about 7.5 billion years the Sun will become a white dwarf.
In one way, yes. If the white dwarf is in a close binary system with another star, when that star expands into a red giant, the white dwarf can start siphoning gas from it. Eventually the heat and pressure of the accumulated gas ignites nuclear fusion, triggering a Type 1a supernova.
No, the sun is a main sequence star, not a white dwarf. White dwarfs are the remnants of smaller stars that have exhausted their nuclear fuel and collapsed. The sun will eventually evolve into a white dwarf in about 5 billion years.
No. It will become a white dwarf in about 7.5 billion years time.
White Dwarf, Sun, Red Giant, Supernova
No, the sun will eventually evolve into a red giant before shedding its outer layers and becoming a white dwarf. The white dwarf stage marks the end of its evolution, where it will slowly cool down over billions of years.
A supergiant is much larger than a white dwarf. A supergiant can be 10 to 70 times the size of our Sun, whereas a white dwarf is only about the size of the Earth.
A stars evolution. Our Sun will go yellow dwarf -> red giant -> white dwarf -> black dwarf.