Red Dwarf Stars are the tiny stars, ranging from 0.075 to 0.5 times the size of the sun. The minimum size of a red dwarf is supposed to be about 7.5% the mass of the Sun. Red Dwarfs are the most diverse group of stars in the galaxy, figures suggest that they amount to anywhere between 75% – 85% of all the stars in our galaxy. However, we are unable to see most of these red dwarf stars because they are not always easy to recognize for several reasons.