Close to the Sun, the temperature is already incredible, but in the heart of the core, it becomes exceptional.
In the heart of the Sun, at the level of the solar core, the temperature is no less than 15 million degrees Celsius. This enormous temperature has made it possible to initiate nuclear fusion reactions, which maintain such a temperature today.
On the surface of the Sun, i.e. its photosphere, the temperature decreases until it is only about 5,900 °C. In some regions that appear darker, which astronomers call sunspots, the temperature is even lower. Only about 3,500 °C!
It is surprising to note that the temperature of the solar corona, which forms the solar atmosphere, can reach up to one million degrees Celsius. A phenomenon that researchers believe can be explained by the existence, under the surface of the Sun, of a layer of plasma that behaves like a boiling pot. This would be the source of a magnetic field that would heat the successive layers of the solar atmosphere.