Cardinal sign (astrology) with the word "angular". Angular signs are those signs which are located on the astrological angles of any given natal chart. Angular houses may be cardinal, fixed or mutable, depending on the birth time of the chart, but only Aries, Cancer, Libra, and Capricorn are cardinal signs. Their starts are related to equinoxes and solstices. The four cardinal signs of the zodiac are: Cardinal sign (astrology) The practice of astrology recognizes four cardinal signs of the zodiac: Aries, Cancer, Libra, and Capricorn — sometimes called reacting signs. It associates those people born "under" one of these with certain human behaviors
Ophiuchus (astrology) since at least the 1970s. In 1970, Stephen Schmidt in his "Astrology 14" advocated a 14-sign zodiac, introducing Ophiuchus (December 6 to December 31) and Cetus (May 12 to June 6) as new signs. Within 20th-century sidereal astrology, the idea was taken up by Walter Berg in the form of his book, "The 13 Signs of the Zodiac" (1995). In January 2011, a statement by Parke Kunkle of the Minnesota Planetarium Society repeating the idea of "the 13th zodiac sign Ophiuchus" made some headlines in the popular press. When Berg's "The 13 Signs of the Zodiac" became a bestseller in