Fusion reactions can occur without the heat and pressure of a star, but such reactions (as in hydrogen bombs) will be instantaneous and not self-sustaining.
Answer: If all meeps are sheep and all sheep are mammals then all meeps are mammals but it does not follow that (the reverse is true in that) all mammals are meeps.
In Short: That depends how you define a star, but not necessarily and in reality not at all, to draw such a comparison is an example of metaphor (unless discussing a star).
Even Shorter: No.
Stars are not powered by combustion; they are powered by nuclear fusion, which is a fundamentally different and far more energetic process.
Fusion occurs predominantly in the core of stars, where the extreme pressure and temperature create the conditions necessary for nuclear fusion reactions to take place. In this process, hydrogen atoms fuse together to form helium, releasing vast amounts of energy in the form of light and heat.
The energy source of stars is primarily associated with nuclear fusion, where hydrogen atoms undergo fusion reactions to form helium, releasing a tremendous amount of energy in the process. This process occurs in the core of stars, where high temperatures and pressures allow fusion to take place.
Nuclear fusion; the merger of small atoms into larger ones.
Stars combine together due to the force of gravity pulling them towards each other. When enough material gathers in one place, the pressure and temperature increases, igniting nuclear fusion in the core. This fusion process releases energy and keeps the star shining.
Initially it is hydrogen. When that is spent, stars move to fusion of helium. There are also other fusion processes which take place: which process depends on the stars' mass.
Initially it is hydrogen. When that is spent, stars move to fusion of helium. There are also other fusion processes which take place: which process depends on the stars' mass.
Stars are not powered by combustion; they are powered by nuclear fusion, which is a fundamentally different and far more energetic process.
Neclear Fusion because stars are powered by that, even our sun
Neclear Fusion because stars are powered by that, even our sun
Nuclear fusion naturally takes place in the core of stars, where high temperatures and pressures allow hydrogen atoms to combine and release energy.
If you are asking where does solar nuclear fusion take place, then that would be at the core of stars.
Nuclear fusion doesn't take place in a white dwarf because the core temperature and pressure aren't high enough to initiate the fusion of heavier elements such as carbon and oxygen. White dwarfs have already exhausted their nuclear fuel and are essentially the leftover cores of stars that have gone through their fusion stages.
Matter must exist in a state called plasma for fusion reactions to take place. Plasma is a highly energized state of matter in which electrons are stripped from their atoms, allowing for the nuclei to collide and undergo fusion. This state is commonly found in stars like our Sun.
Nuclear fusion takes place in the core of the sun.
Nuclear fusion is the type of nuclear reaction that occurs in stars. Older stars with a collapsing center can exceed a temperature of one hundred million Kelvin.
Fusion most often takes place in the cores of stars, including our Sun, where extreme temperatures and pressures allow hydrogen atoms to combine into helium, releasing vast amounts of energy. In our solar system, the Sun is the primary site of fusion. Other stars outside our solar system also undergo fusion, but within our solar system, the Sun is the sole example.