They include the M and L spectral classes, they cannot initiate helium fusion, and the most famous example of one is Proxima Centauri.
As the masses of these decrease, their spectra become increasingly complex, including such compounds as titanium oxide and vanadium oxide. They are totally convective and may have formed from high mass Population III stars, which explains why they always contain metals. They include the M and L spectral classes, they cannot initiate helium fusion, and the most famous example of one is Proxima Centauri. For 10 points -- name this type of star that lies in the bottom right of the Hertzsprung-Russell diagram and comprises 70% of the universe's stars.
As the masses of these decrease, their spectra become increasingly complex, including such compounds as titanium oxide and vanadium oxide.
red dwarfs