His attributes, the snake and the staff, sometimes depicted separately in antiquity, are combined in this symbol. The Rod of Asclepius also represents the constellation Ophiuchus (or Ophiuchus Serpentarius), the thirteenth sign of the sidereal zodiac . Hippocrates himself was a worshipper of Asclepius. Antoninus (Called 'Caracalla') Caesar: 195-198 A.D. Augustus: