The primary asteroids that are used in a birth chart include Ceres, Juno, Pallas Athena and Vesta. Many astrologers use them in their charts to add extra knowledge to the signs they are influencing. Some of them are large enough to make a difference as they pass through the signs of the zodiac. There are many asteroids in the belt between Mars and Jupiter as well as other bodies traveling through our solar system. Birth Chart Asteroids Chiron, Ceres, Pallas, Juno & Vesta