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).
Chinese zodiac the elements is also linked to a season (see above), and the element that shares a season with a sign is known as that sign's "fixed element". In other words, that element is believed to impart some of its characteristics to the sign concerned. The fixed element of each sign applies also to the year and hour signs, and not just the monthly sign. The fixed element is separate from the cycle of elements which interact with the signs in the 60-year cycle. Four pillars calculator can determine the zodiac animal of the day. Chinese animal signs rule over days