Alpha Herculis (Rasalgethi) Alpha Herculis Alpha Herculis, or Rasalgethi, is a red giant multiple star system and the brightest star in Hercules, known for its orange-red color and traditional Arabic name.
Chi Cygni — a Mira-type pulsating red giant in Cygnus Chi Cygni Chi Cygni is a Mira-class pulsating red giant in Cygnus, notable for very large visual brightness changes and an extended atmosphere hundreds of times larger than the Sun.
