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) Ophiuchus (astrology) Ophiuchus (⛎) () has sometimes been used in sidereal astrology as a thirteenth sign in addition to the twelve signs of the tropical Zodiac, because the eponymous constellation "Ophiuchus" ( "Serpent-bearer"), as defined by the 1930 International Astronomical Union's constellation boundaries, is situated behind the sun from November 29 to December 18. The idea appears to have originated in 1970 with Stephen Schmidt's suggestion of a 14-sign zodiac, with it also including Cetus as a sign. A 13-sign zodiac has been suggested by Walter Berg and by Mark Yazaki in 1995, a suggestion that achieved some popularity in