Astrological sign of a sign are together sufficient to define it, they can be grouped to indicate their symbolism. The first four signs, Aries, Taurus, Gemini and Cancer, form the group of personal signs. The next four signs, Leo, Virgo, Libra and Scorpio form the group of interpersonal signs. The last four signs of the zodiac, Sagittarius, Capricorn, Aquarius and Pisces, form the group of transpersonal signs. Dane Rudhyar presented the tropical zodiac primary factors, used in the curriculum of the RASA School of Astrology. The tropical zodiac is the zodiac of seasonal factors as opposed to the sidereal zodiac (constellation factors).
Zodiac (comics) members of a mysterious fourth version of the Zodiac are mentioned in the title "Young Avengers" and appear in the fourth volume of the title "New Warriors", and skirmish with heroes from the Initiative and "New Warriors". Zodiac member Cancer murders New Warrior Longstrike. The villain Zodiac claims to have murdered all the members of this group and made their heads into hunting trophies. Thanos returns from the dead and forms his own incarnation of the Zodiac. In a plot to rule Earth, he had special suits made for the ambitious people that want to rule the world with one