A dead star with the density of an atomic nuclei is called a neutron star. Neutron stars are incredibly dense and are composed mostly of tightly packed neutrons. They form when massive stars explode in a supernova and their cores collapse under gravity.
A massive collapsed star is a dead star.
A white dwarf is considered a dead star because it is the remnant of a low to medium mass star that has exhausted its nuclear fuel and shed its outer layers. Without nuclear reactions to provide energy, a white dwarf emits only residual heat and slowly cools over billions of years, eventually fading into a cold, dark object.
Arcturus is hot. Bear in mind that only a hot star is even going to be seen in the night sky. Any cold star would also be dark.
A small dead star is typically a white dwarf, which is the leftover core of a star that was not massive enough to become a supernova. White dwarfs are very dense, about the size of Earth but with the mass of a star.
It is called a Black Dwarf
An old dead small star could be a white dwarf, which is the remnant core of a low to medium mass star that has exhausted its nuclear fuel and shed its outer layers. White dwarfs are very dense and cool slowly over billions of years until they eventually become dark and cold.
A white dwarf
A dead star with the density of an atomic nuclei is called a neutron star. Neutron stars are incredibly dense and are composed mostly of tightly packed neutrons. They form when massive stars explode in a supernova and their cores collapse under gravity.
No. The remnants left behind by dead stars retain a lot of left-over heat and will take a long time to cool down. Currently the universe has not been around long enough for any dead star to have cooled to a temperature we might consider cold.
cold war or cold war amercia
it was a hot war was but it was called the ( COLD WAR) probably cause all the dead bodies.
When it has burned out all it's "fuel" - combustibles gases, it's just a burnt out black dead husk.
Th cold war
Star wars in the cold war was a satellite Ronald Reagan had set up in space to find missiles before they got to America and shoot them down over the ocean. Reagan called his program the Strategic Defense Initiative. Critics who didn't like the idea or Ronald Reagan mockingly called it "Star wars."
A massive collapsed star is a dead star.
No. There is no such thing a a cold star. Sirius consists of two stars, both of which are hotter than the average star.