Habitability of K-type main-sequence star systems

K-type main-sequence stars, also known as orange dwarfs or Goldilocks stars, may be candidates for supporting extraterrestrial life. Due to their smaller mass, they remain stable in the main sequence longer than the Sun by burning their hydrogen slower, whilst also maintaining sufficiently-low solar-flare activity and a habitable zone large enough to prevent tidal locking to sustain life.