Characteristics of the sun, surface, what type of star it is, how it works and the system of energy produced and radiated, necessary to ensure all life on earth.
What is the sun
To us, on Earth, the Sun looks large and very bright, but this only depends on the fact that we live close to it.
Compared to most stars, the Sun is of medium size and brightness, it is absolutely not an exceptional star.
The Sun is a classed yellow dwarf star of a spectral type, it is the one closest to the earth and indispensable for making any form of life possible on our planet, thanks to its light and radiated heat.
Wanting to give an imaginary description, the sun can be represented as a huge sphere of gas.
In the central part, where a temperature of about fifteen million degrees is reached, the production of a huge energy mass occurs, which is the one that allows the sun to give light and heat the entire solar system through a process similar to that of the nuclear fusion made in physics.
Moving from the core to the outside of the solar sphere, there is first an area where the energy is transferred by radiation, after another where the transmission takes place by convention.
The next layer is represented by the photosphere, which constitutes the visible area of the sun, follows the chromosphere, formed by a thin layer of gas from which the solar protrusions originate, finally there is the crown, a very hot sector that coincides with the outermost part of the solar atmosphere and from it arises the commonly known solar wind, consisting of a flow of particles charged with energy.
The chromosphere and the solar corona can only be observed in the presence of an eclipse of the Sun or using sophisticated equipment dedicated to this purpose.
