Technically, the sun is a G-type main-sequence star — specifically, a G2V star. The "V" indicates that it is a dwarf, Tony Wong, a professor of astronomy at the University of Illinois Urbana-Champaign ...

The Sun's transition from the main sequence to the red giant phase is a gradual process, spanning approximately a billion years. This transition begins with a subgiant phase where core hydrogen fusion ...

The sun is the solar system's central star and supports all life on Earth. When you purchase through links on our site, we may earn an affiliate commission. Here’s how it works. The sun is a yellow ...

The Sun, a G2V main-sequence star approximately 4.6 billion years old, is currently undergoing hydrogen fusion. Stellar evolution, primarily determined by a star's mass, dictates that the Sun will ...