StarCitizen:G-type main-sequence star

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 of StarCitizen:spectral type G and StarCitizen:luminosity class V. Such a star has about 0.9 to 1.1 solar masses and an effective temperature between about 5,300 and 6,000 K. Like other main-sequence stars, a G-type main-sequence star is converting the element StarCitizen:hydrogen to StarCitizen:helium in its core by means of nuclear fusion, but can also fuse helium when hydrogen runs out. StarCitizen:Sol, the star in the center of the Solar system to which the StarCitizen:Earth is gravitationally bound, is an example of a G-type main-sequence star (G2V type). Each second, the Sun fuses approximately 600 million tons of hydrogen into helium in a process known as the proton–proton chain (4 hydrogens form 1 helium), converting about 4 million tons of matter to energy. Besides the Sun, other well-known examples of G-type main-sequence stars include Alpha Centauri, Tau Ceti, Capella and 51 Pegasi.

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