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.
The temperature determines the color of the star!:)
A star becomes a star - "is born" - when the process of nuclear fusion begins in the core of the star.
Mainly its temperature.
Temperatures in the star's core can reach 3x109 K.
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.
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).
The core.
Surface Temperature, and mass.
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.
The sun!
About 10,000,000K.
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.