The Sun a classified as spectral class G2 V. The "G" means it is a moderately warm yellow star. The "2" means it is in the third hottest group of stars within type "G" (the scale runs from 0 to 9). The "V" is a Roman numeral for 5 and indicates the Sun's size. A size V star is a dwarf, main sequence star. The Sun is in the 95th percentile in its class by size and mass of other stars in its immediate region. | The Sun a classified as spectral class G2 V. The "G" means it is a moderately warm yellow star. The "2" means it is in the third hottest group of stars within type "G" (the scale runs from 0 to 9). The "V" is a Roman numeral for 5 and indicates the Sun's size. A size V star is a dwarf, main sequence star. The Sun is in the 95th percentile in its class by size and mass of other stars in its immediate region. |