Most common type of star
Red dwarfs

By far the most common class of star in our galaxy and the Universe are red dwarfs. These are weak, dim stars with no more than 40% of the mass of the Sun, and the brightest of them shine at only 10% of the Sun’s luminosity. Because they burn their fuel so slowly they have lifespans much longer than our own star, of at least 10 billion years. Around 80% of all stars in our local neighbourhood are red dwarfs.