Chiron represents past hurt and future healing. In the years following its discovery, few practitioners were brave enough to insert Chiron into birth charts.
Chiron, is a dwarf planet discovered in 1977. Ever since November 1, 1977, when scientist Charles Kowal discovered Chiron hurtling around the Sun between the orbits of Saturn and Uranus, scientists have been trying to make up their minds if Chiron is a burned-out comet, a planetesimal leftover from the creation of the solar system, or a particular type of asteroid called a Centaur.
Chiron in Mythology
In mythology, Chiron was a compassionate tutor whose students included three heroes: the warrior Achilles, the Argonaut Jason, and Hercules. One day, Chiron was accidentally scratched by one of Hercules’s poison arrows. The pain was so intense that he wanted to die. But Chiron was immortal. Unable to die, he was forced to cope with the agony. In the process, he became expert in the arts of healing. Yet despite Chiron’s knowledge, his pain never lessened.
Nor did he develop a tolerance for it. He did, however, find a solution. After negotiating with Zeus, he bequeathed his immortality to Prometheus, who had given fire to mankind and was being tortured as a result. So Prometheus, having been freed from his agony, joined the society of the gods on Mount Olympus while Chiron, relieved of his agony, was allowed to travel into the underworld, release his bodily pain, and take up residence in Hades.
Chiron: The Wounded Healer
Chiron represents past hurt and future healing. In the years following its discovery, few practitioners were brave enough to insert Chiron into birth charts. It seemed too soon, and astrologers didn’t know enough about it. That has changed. Today, Chiron, referred to as the Wounded Healer, is often included in interpretations. Astrologers see Chiron as both a point of pain and a source of healing — an area where you have suffered or been disappointed and where you must find resolution. Astrologers also associate Chiron with the holistic healing movement. Chiron has a peculiar orbit that causes it to spend more time in some signs (Pisces, Aries, and Taurus) than in others (Virgo, Libra, and Scorpio). Note that the astrological Chiron, like the mythological figure, is more than a victim and a healer. As a tutor, Chiron was known for his wisdom and his teaching ability. Astrologer Zipporah Dobyns, PhD, links Chiron with Sagittarius and suggests that it indicates not only the quest for knowledge but also the impulse to share it with others. A complete swing through all 12 signs of the zodiac takes 51 years.
Chiron's Symblol: 
The symbol for Chiron looks like a letter K balanced on a circle or oval. It resembles an old-fashioned key.
Chiron’s influence
Chiron is small, distant, and impossible to see without a telescope. It’s prominent in your chart if:
i) It occupies an angle (and especially if it conjuncts or opposes your Ascendant or Midheaven).
ii) It closely aspects the Sun, the Moon, or the planet that rules your Ascendant.
Chiron in the Signs
Chiron spends, on average, a little over four years in each sign. Thus it indicates an area of concern both for you and for members of your immediate generation. You can read more about Chiron in the signs here!