SOLAR SYSTEM

Detailed explanation-1: -The Sun doesn’t have a solid surface like Earth and the other rocky planets and moons. The part of the Sun commonly called its surface is the photosphere.

Detailed explanation-2: -The Sun does not have a solid surface or continents like Earth, nor does it have a solid core as shown in Figure 1. However, it does have a lot of structure and can be discussed as a series of layers, not unlike an onion.

Detailed explanation-3: -The Sun’s upper layers compared with the size of Earth. The Sun visible to our eyes is a giant ball of plasma, or electrified gas, and does not have a solid surface like the Earth or Moon does.

Detailed explanation-4: -It is, as all stars are, a hot ball of gas made up mostly of Hydrogen. The Sun is so hot that most of the gas is actually plasma, the fourth state of matter.

Detailed explanation-5: -As previously discussed, our Sun is made out of very hot gases and plasma. Because it is made of gas, the Sun does not have a solid surface. This plasma is mostly comprised of hydrogen and some helium in the Sun’s core. However, scientists have observed many different elements in gaseous form in the Sun’s atmosphere.

Detailed explanation-6: -The total power emitted by the sun is calculated by multiplying the emitted power density by the surface area of the sun. The sun has a radius of 695 x 106 m 4 giving a surface area of 6.07 x 1018 m2.