What type of star is the Sun?

The Sun is a G-type main-sequence star that makes up about 99.86% of the mass of the Solar System. The Sun has an absolute magnitude of +4.83, estimated to be brighter than about 85% of the stars in the Milky Way, most of which are red dwarfs. The Sun is a Population I, or heavy-element-rich, [b] star.

What type of energy does the Sun give off?

The Sun, also known as Sol, is a star at the center of our solar system. It is a white star that gives off different types of energy such as infrared energy (heat), ultraviolet light, radio waves and light. It also gives off a stream of particles, which reaches Earth as " solar wind ". The source of all this energy is nuclear fusion.

Why is the Sun a hot star?

The Sun is the star at the center of the Solar System. It is a massive, hot ball of plasma, inflated and heated by energy produced by nuclear fusion reactions at its core. Part of this internal energy is emitted from its surface as light, ultraviolet, and infrared radiation, providing most of the energy for life on Earth .

How old is the Sun?

It is about 4.5 billion years old. In another 5 billion years the Sun will become a big, cool star called a red giant. A few billion years after that, it will become a small white dwarf star. It will shrink to around the same size as Earth, but it will weigh 20,000 times more. Click the above image to expand it.