Achilles (588): Achilles was discovered in 1906 and is a main-belt asteroid with a diameter of 135Km. Named after the Greek hero of the Trojan War, Achilles represents themes of bravery, vulnerability, and the quest for invulnerability. In astrology, Achilles may signify areas where individuals confront their greatest strengths and weaknesses, experience moments of vulnerability, or strive to overcome challenges with courage and determination.