The most popular form of modern astrology is called natal (birth) astrology. Natal astrology involves plotting the positions of the sun, moon, planets, and stars at the exact time of a person's birth, creating a chart called a horoscope. Astrologers believe that the horoscope provides information about that person's Signs of the Zodiac. traits and the sequence of his or her life events. When casting a horoscope, an astrologer maps the planets and stars against the backdrop of the zodiac. The zodiac breaks the celestial sphere into twelve regions, each one defined by a constellation residing within it. The twelve zodiac signs are: Aries, Taurus, Gemini, Cancer, Leo, Virgo, Libra, Scorpio, Sagittarius, Capricorn, Aquarius, and Pisces.
