Astrology, also named astromancy, consists of many systems of divination based on the thought that there is a relationship between astronomical phenomena and events in the human world. Many cultures have attached importance to astronomical events, and the Indians, Chinese, and Mayans developed elaborate systems for predicting terrestrial events from celestial observations. In the West, astrology most often consists of a system of horoscopes purporting to explain aspects of a person's personality and predict future events in their life based on the positions of the sun, moon, and other celestial objects at the time of their birth. The majority of professional astrologers rely such systems. In the course of the Chapter, we shall be looking at the 12 horoscopes.

Aries (♈) (which mean ‘ram") is the first Zodiac sign, and spans the first 30 degrees of celestial longitude. Under the tropical zodiac, the Sun transits this sign between March 21 and April 20 each year. This time duration is exactly the first month of Salor Hejri calenda. Under the sidereal zodiac, the sun currently transits Aries from 15 April to 15 May (approximately). According to the Tropical astrological system, the Sun enters the sign of Aries when it reaches the northern vernal equinox, which occurs around March 21. Due to the fact that the Earth takes approximately 365.25 days to go around the Sun, the precise time of the equinox is not the same each year, and generally will occur about 6 hours later each year, with a jump of a day (backwards) on leap years. Since 1900 the vernal equinox date ranged from March 20 at 08h (2000) to March 21 at 19h (1903) (all times UTC). Individuals born during these dates, depending on which system of astrology they subscribe to, may be called Arians or Ariens.

Taurus (♉) is the second astrological sign in the Zodiac. It spans the 30-60th degree of the zodiac, between 27.25 and 54.75 degree of celestial longitude. Under the tropical zodiac, the Sun transits this area on average between April 20 and May 20 each year. Under the sidereal zodiac, the sun currently transits the constellation of Taurus from May 16 to June 15 (approximately). Individuals born during these dates, depending on which system of astrology they subscribe to, may be called Taureans.

Gemini (♊) is the third sign of the Zodiac, originating from the constellation of Gemini. Under the tropical zodiac, the sun transits this sign between May 21 and June 21.

Cancer (♋) is the fourth astrological sign, which is associated with the constellation Cancer. It spans the 90-120th degree of the zodiac, between 90 and 125.25 degree of celestial longitude. Under the tropical zodiac, the Sun transits this area on average between June 22 and July 21, and under the sidereal zodiac, the Sun transits this area between approximately July 16 and August 15.

Leo (♌) is the fifth zodiac sign, originating from the constellation of Leo. It spans the 120-150th degree of the Tropical zodiac, between 125.25 and 152.75 degree of celestial longitude. Under the tropical zodiac, the Sun transits this area on average between July 23 and August 23 each year, and under the sidereal zodiac, the sun currently transits this area from approximately August 16 to September 15.

Virgo (♍) is the sixth astrological sign in the Zodiac. Virgo is the second-largest constellation. It spans the 150-180th degree of the zodiac, between 152.75 and 180 degree of celestial longitude. Under the tropical zodiac, the Sun transits this area on average between August 23 and September 22, and under the sidereal zodiac, the sun currently transits the constellation of Virgo from September 17 to October 17. Cusps of Virgo are between September 22-October 1. People born up to August 23- October 1 have Virgo traits. Individuals born during these dates, depending on which system of astrology they subscribe to, may be called Virgos or Virgoans.

Libra (♎) is the seventh sign of the Zodiac, and spans the 180-210th degree of the zodiac, between 180 and 207.25 degree of celestial longitude. Under the tropical zodiac, Sun transits this area on average between (northern autumnal equinox) September 23 and October 23, and under the sidereal zodiac, the sun currently transits the constellation of Libra from approximately October 16 to November 15.

Scorpio (♏) is the eighth astrological sign in the Zodiac. It spans the 210-240th degree of the zodiac, between 207.25 and 234.75 degree of celestial longitude. Under the tropical zodiac, the sun transits this area on average between October 23 and November 21, and under the sidereal zodiac, the sun currently transits the constellation of Scorpius from approximately November 16 to December 15. Depending on which system of zodiac one subscribes, an individual born under the influence of Scorpio may be called a Scorpio or a Scorpian.

Sagittarius (♐) is the ninth astrological sign, which is associated with the constellation Sagittarius. It spans the 240–270th degree of the zodiac, between 234.75 and 270 degree of celestial longitude. Under the tropical zodiac, the sun transits this area on average between November 22 and December 21, and under the sidereal zodiac, the sun currently transits the constellation of Sagittarius from December 16 to January 14. Individuals born during either of these dates, depending on which system of Astrology they choose to follow, may be called Sagittarians.

Capricorn (♑) is the tenth astrological sign in the zodiac, originating from the constellation of Capricornus. It spans the 270–300th degree of the zodiac, corresponding to celestial longitude. Capricorn is ruled by the planet Saturn. Under the tropical zodiac, the sun transits this area from December 22 to January 20 each year, and under the sidereal zodiac, the sun currently transits the constellation of Capricorn from approximately January 15 to February 14.

Aquarius (♒) is the eleventh astrological sign in the Zodiac, originating from the constellation Aquarius. Under the tropical zodiac, the sun is in Aquarius typically between January 21 and February 18, while under the Sidereal Zodiac, the sun is in Aquarius from approximately February 15 to March 14, depending on leap year.

Pisces (♓) is the twelfth Zodiac sign, originating from the Pisces constellation. It spans the 330° to 360° of the zodiac, between 332.75° and 360° of celestial longitude. Under the tropical zodiac the sun transits this area on average between February 20 and March 20, and under the sidereal zodiac, the sun transits this area between approximately March 15 and April 14. Associations made with the astrological sign Pisces have shaped centuries of mythology. Although there is no scientific basis for characterizing someone’s personality by date of birth, Western superstitious belief is that Pisceans are reasonable, artistic, and quiet. According to new agers and some tropical astrologers, the current astrological age is the Age of Pisces, while others maintain that it is the Age of Aquarius.