Leo (constellation) Babylonian astronomy, the constellation was called UR.GU.LA, the "Great Lion"; the bright star Regulus was known as "the star that stands at the Lion's breast." Regulus also had distinctly regal associations, as it was known as the King Star. In Greek mythology, Leo was identified as the Nemean Lion which was killed by Heracles (Hercules to the Romans) during the first of his twelve labours. The Nemean Lion would take women as hostages to its lair in a cave, luring warriors from nearby towns to save the damsel in distress, to their misfortune. The Lion was impervious to any weaponry;
Leo (astrology) to September 15. The symbol of the lion is based on the Nemean lion, a lion with an impenetrable hide. It is a northern sign and its opposite southern sign is Aquarius. Leo (astrology) Leo (♌) (Greek: , "Leōn"), is the fifth astrological sign of the zodiac, originating from the constellation of Leo. It comes after Cancer and before Virgo. The traditional Western zodiac associates Leo with the period between July 23 and August 22, and the sign spans the 120th to 150th degree of celestial longitude. Leo is a fixed sign along with Taurus, Scorpio, and Aquarius. Under the