We know not. The existence of Nemesis is a hypothesis - a possible explanation for a perceived regularity in mass extinctions in the past. it has neither been confirmed, nor is there sufficient evidence to discard the possibility of such a star.
A white dwarf could not become a red dwarf. A white dwarf is a remnant of a dead star. A red dwarf is a star with a very low mass.
A white dwarf. Basically, a red dwarf just gets cooler and cooler until it has consumed all of its hydrogen. Then it becomes a white dwarf star. It will then dissipate any remaining heat into space and eventually become a "black dwarf".
Ouroboros - Red Dwarf - was created on 1997-01-31.
possibly
Red giant - Black dwarf. See related questions.
A star does not turn into a red dwarf. A red dwarf is simply a star that has a low mass to begin with.
The death star is known as the nemesis star AKA the death star, brown dwarf star, red dwarf star, or the sun's twin.
If you mean a red dwarf, then trillions of years. In fact, no red dwarf has been observed to "die".
Nemesis is a book by Isaac Asimov in 1989. Space travel near the speed of light is discovered. A red dwarf star is discovered and it has a moon named Erythro. This moon has a bacterial life form that is telepathic. Then Nemesis threatens to destroy the solar system.
Nemesis is only theoretical. It is likely that if it does exist, within the next few years Voyager will detect more evidence of its presence. However, innocent until proven guilty, so until we have proof that Nemesis exists, we have to assume that it does not.
Red dwarf, yellow dwarf, red dwarf
Red dwarf, yellow dwarf, red dwarf
Red dwarf, yellow dwarf, red dwarf
A white dwarf could not become a red dwarf. A white dwarf is a remnant of a dead star. A red dwarf is a star with a very low mass.
The story does, but an actual death star does not exist. It is made up for the story.
Only a red dwarf star is red. Our Sun is a yellow dwarf. A red dwarf is red because it is cool, and cool colours are red whereas hot colours are white and blue.
Red Dwarf Launching 'Red Dwarf' - 2002 V is rated/received certificates of: UK:12