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What is the critical temperature the core must reach for a star to shine by fusion?
about 10500-11000k is when fusion commences which creates the shining of the star
When does stellar nucleosynthesis start in a star?
When the temperature in the core reaches 10 million degrees Kelvin.
What happens during the third stage of a stars life cycle as the star uses up all of its hydrogen?
The core of a star contracts under the force of its own gravity. This contraction increases the temperature in the core.
Why would one star have a greater luminosity than another?
The luminosity of a star depends greatly on the star's mass. A more massive star has a larger pressure and temperature in its core; as a result, nuclear fusion will proceed at a faster rate.
When the core of a star shrinks after hydrogen fusion stops the core heats up but what happens to the star?
The rest of the star expands.
At what temperature does a star's core reach Carbon detonation?
Temperatures in the star's core can reach 3x109 K.
What determines the temperature in the core of a star?
The star's mass determines the temperature in its core. A stars mass will also determined it size and the amount of gravitational pull it will have.
What is the temperature of the core of a neutron star?
Depends on the age of the neutron star. As a neutron star no longer has any method to produce heat, it will slowly cool over time. A young neutron star will have a core temperature of about 106 kelvin.
Why the temperature of the stars vary from one another?
The temperature in the core of a star depends, to a great extent, on:* The star's mass. The general tendency is that high-mass stars are hotter. * Where the star is in its life cycle. The star's core temperature will vary over time. On the other hand, the star's surface temperature also depends on its size. Thus, it is possible that PRECISELY because a star is hotter in the core, it gets bigger, and the surface temperature DECREASES (though its total energy output increases).
Which part of a star can reach a temperature of a millions of degrees?
The core.
What temperature does a star start to fuse hydrogen?
The temperature at which hydrogen fuses is 10,000,000 degrees Kelvin. This is the minimum temperature the core of a proto star has to have to become a true star.
Which star's surface temperature is closest to the temperature at the boundary between earth's mantle and core?
The sun!
The critical temperature the core must reach for a star to shine by fusion is?
About 10,000,000K.
Does a star colors depends on core temperature?
actually, it depends on the color of it's chromosphere. as you get deeper into a star, it may change color due to it's temperature, but what you see on the outside would be a different color. The chromosphere would hide the inner core of the star.
In which part of a newborn star does the fusion reactio occur?
In the center where the pressure and temperature are highest
What makes dwarf stars and giant stars hot or cold?
Basically, the amount of hydrogen (mass). The more mass a star has, the greater the pressure in the core. The greater the pressures in the core, the higher the temperature, the higher the temperature, the hotter the star will be, the hotter the star, the blighter the envelope will be.
What happens in the star core?
The core of a star is located inside the star in a region where the temperature and pressures are sufficient to ignite nuclear fusion, converting atoms of hydrogen into helium, and releasing a tremendous amount of heat.
