Teacher of heroes (Asclepius, Aristaeus, Actaeon, Achilles, Jason, Medus) Source
Victim of the Hydra. The arrow that hit Chiron was poisoned with the Hydra's blood (each time you cut one of the Hydra's heads off, two new heads grow).
Chiron is both a minor planet and a comet. It is located between Saturn and Uranus. Chiron takes about 50 years to make one complete cycle through all the signs of the zodiac. Chiron is in Libra for the shortest amount of time – 1.5 years; and in Aries the longest – about 8 years.