A G-type main-sequence star (spectral type: G-V), also often, and imprecisely, called a yellow dwarf, or G star, is a main-sequence star (luminosity class V) of spectral type G. Such a star has about 0.9 to 1.1 solar masses and an effective temperature between about 5,300 and 6,000 K (5,000 and 5,700 °C ; 9,100 and 10,000 °F ).

A yellow dwarf is a star and is often referred to as a G-type main sequence star. A perfect example of a yellow dwarf would be the sun. A yellow dwarf has a mass almost like the mass of the sun. Its color ranges from white to a lighter yellow.

2017年7月24日 · Yellow dwarf stars outshine 90+% of the stars in our Milky Way galaxy, which consists primarily of dimmer orange, red, and white dwarfs.

The Sun is a G-type main-sequence star (G2V), informally called a yellow dwarf, though its light is actually white. It formed approximately 4.6 billion [a] years ago from the gravitational collapse of matter within a region of a large molecular cloud.

2024年5月21日 · A yellow dwarf is a main-sequence star, producing energy by converting hydrogen to helium through nuclear fusion in its core. Outward pressure produced by this energy is balanced by the force of the star's own gravity, creating a state called hydrostatic equilibrium that keeps the star from either collapsing or exploding.

2024年2月2日 · The Sun: A Yellow Dwarf Star. The sun, our beloved star, is classified as a yellow dwarf. But what does that mean? Let’s take a closer look at the sun and understand its characteristics. Size and Composition. The sun is massive, encompassing nearly 99.9% of the total mass in our solar system.

2024年11月5日 · Our Sun is a 4.5 billion-year-old yellow dwarf star – a hot glowing ball of hydrogen and helium – at the center of our solar system. It’s about 93 million miles (150 million kilometers) from Earth and it’s our solar system’s only star.

2022年9月26日 · Our Sun is a main sequence star, a G-type yellow dwarf that has an estimated total lifetime of around 10 billion years before it leaves its main sequence phase. (Image credit: NASA)

A GV star, or yellow dwarf, is a main-sequence star. It is of spectral type G and luminosity class V on the Hertzsprung-Russell Diagram . The term yellow dwarf is a misnomer , because G-type stars actually range in color from white, for more luminous types like the Sun , to only very slightly yellow for the less massive and luminous G-type main ...

Stars like the Sun are called yellow dwarf stars to distinguish them against stars that are giant yellow stars such as Polaris, the Pole Star or HR 5171, the largest known yellow hypergiant. Both of these stars are smaller than red hypergiants.