A malefic fixed star; a companion star circles it in 69 hours causing 9-hour occultations as viewed from the Earth and variations in brightness. Treated as a malefic and used mostly in horary, electional, and mundane astrology. Figuratively signifies decapitation ("losing one's head"). Caput Algol represents the snake-haired Gorgon whom Perseus beheaded using a mirror, symbolizing cleverness.
Comments: Caput Algol