If you want to be shining, your temperature should reach 525 degrees Celsius, if you look around, it's all just red. We can calculate the wavelength of electromagnetic. It can be seen that the more heat of an object, the electromagnetic wavelength (from one peak to the next) is narrower, from radio radiation whose wavelength is within the skyscraper to the gamma-ray radiation created in the sun's core whose wavelength is as close to the core atom.
At temperatures as hot as the sun, things are not solid, or liquid, or gas, but in the form of plasma because electrons move freely from neutrons. we can make a simple plasma with a microwave, but do not try it.
But the sun's hot core is not proportional to the peak temperature of the thermonuclear weapon explosion, which is 350 million Kelvin, but the temperature only occurs in a very short time.
The temperature of the other star's core, 8 times larger than our sun, when the last day of the star, the star will be so compressed that it is very small compared to the size when the star is alive, and if it is calculated the core temperature of the star to die , the temperature can reach 3 BILLION Kelvin, or 3 gb kelvin. but let us improve again temperature. go into 1 terra kelvin, objects will be strange. remember about plasma before? at the temperature of 1 terra kelvin, the electrons move freely and go away; and neutrons, protons melt to a nucleus shaped like soup neutrons and protons. but how much is 1 terra kelvin? VERY HOT! a star named WR104, is 8000 light years from Earth. the mass of this star is 25 times that of the sun.
