The huge energy of the sun and the solar spectrum
The energy of the sun is huge The sun is a blazing fireball, and the surface temperature of the sun is 5770K (5497°C). In the center of the sun, the temperature is as high as 1.5×107~2×107 ℃, the pressure is as high as 3.4×1010 MPa, and the density is as high as 160g/cm3. This is a high-temperature,