Answer:
- Nebula
- Dust and stellar gases
- Cold gas globules
- ProtoStar
- Brown dwarf
- Main sequence
- White Dwarf
- Supernova
- Black holes
Explanation:
The birth of a star occurs in nebulae, which are huge clouds of gas composed of helium and hydrogen.
When the temperature is high enough, this huge ball of gas begins to emit light and hydrogen begins to burn. This process is called nuclear fusion and releases a lot of energy. This sequence of phenomena characterizes the early life of a star.
During nuclear fusion, hydrogen atoms fuse, giving rise to helium. The burning of helium gives rise to lithium and so on, each time giving rise to heavier elements.
As the fuel is consumed, the temperature increases and the star expands. At this stage she is called the Red Giant. After this stage, the gravitational force begins to prevail and the star begins to shrink. Inside the stars, the temperature is too high. The sun's core, for example, reaches 15 million degrees Celsius.
How long a star will live will depend on its mass. The larger the mass, the more heat and light it will release. Your death happens when you have already burned all the fuel. Because this burning gives rise to heavier elements, it ends only when it starts producing iron, which is an energy-consuming process. From then on, it cools and shrinks dramatically, turning completely to iron.
With this contraction, the particles that were on the star's surface go at very high speeds toward the center when they collide with the nucleus and are ejected into space, originating elements heavier than iron. The gases that are released into space give rise to a new nebula, from which new stars may emerge.
If the mass of the star is considered small, about one third of the sun, it will become a neutron star. If the mass is larger, it will turn into a black hole.
