The dying phase of a massive star begins when it runs out of usable hydrogen that it can convert to helium. Once it becomes a red giant, it slowly dies out.
The more massive the shorter - down to just millions of years.
No. A supernova is a massive explosion, usually from a dying supermassive star.
The biggest star - VY Canis Majoris IS in a red supergiant phase and will explode as a massive supernova.
The lifetime of a massive star is shorter than that of a star like the sun. Massive stars have more fuel to burn but burn it at a faster rate due to their higher core temperatures and luminosities. This leads to a shorter lifespan for massive stars compared to sun-like stars.
No, planets are not nearly massive enough to become black holes. Any object with more than about 80 times the mass of Jupiter would begin fusing hydrogen in its core, so it would be a star, not a planet. Even then, it would still not be massive enough to form a black hole.
its not a massive or a dwarf star
A massive collapsed star is a dead star.
It is called as a PROTOSTAR
An extremely dense dying star is called a neutron star. It is formed when a massive star collapses in a supernova explosion, leaving behind a core made mostly of neutrons. Neutron stars are incredibly dense, packing the mass of the sun into a sphere only about 12 miles in diameter.
The next nuclear fusion cycle after helium fusion in a massive star is carbon fusion. This process involves fusing helium nuclei to form carbon. Carbon fusion typically occurs in the core of a massive star after helium fusion is completed.
Stars that are massive enough are unlikely become red giants; instead they will destroy themselves as type II supernovas.
A normal (but fairly massive) star.A normal (but fairly massive) star.A normal (but fairly massive) star.A normal (but fairly massive) star.