Western astrology is the system of astrology most popular in Western countries. Western astrology originated in Mesopotamia during the 2nd millennium BC, from where it spread to much of the world. After spreading to Egypt, where further developments occurred, it then arrived into Greek or Hellenistic culture, where the Greek astronomer and astrologer Ptolemy in his work Tetrabiblos laid the foundations of the Western tradition. Western astrology is largely horoscopic, that is, it is largely based on the construction of a horoscope for an exact moment in time, such as a person's birth, in which various cosmic bodies are said to have an influence. In modern Western sun sign astrology, only the location of the Sun is considered.

The zodiac is the belt or band of constellations through which the Sun, Moon, and planets move on their journey across the sky. Astrologers noted these constellations and so attached a particular significance to them. Over time they developed the system of twelve signs of the zodiac, based on twelve of the constellations they considered to be particularly important. Most western astrologers use the tropical zodiac beginning with the sign of Aries at the Northern hemisphere Vernal Equinox always on or around March 21 of each year. Due to a phenomenon called precession of the equinoxes (where the Earth's axis slowly rotates like a spinning top in a 25,700 year cycle), there is a slow shift in the correspondence between Earth's seasons (and calendar) and the constellations of the zodiac. For this reason some Western astrologers use the Sidereal zodiac which still uses the actual star positions.

Pisces

Pisces is symbolized by the Fish

Birthdates: February 19 - March 20

Element of the Pisces zodiac sign: Water
Astrological quality of the Pisces zodiac sign: Mutable (i.e. flexibility)

Planets and the Pisces zodiac sign:
* Ruling Planet: Neptune
* Career Planet: Pluto
* Love Planet: Mercury
* Money Planet: Mars
* Planet of Health and Work: Sun
* Planet of Home and Family Life: Mercury

Colours of the Pisces zodiac sign: blue-green
Gems of the Pisces zodiac sign: white diamond
Metals of the Pisces zodiac sign: tin
Best day of the week for Pisces zodiac sign: Thursday

Strongest virtues of the Pisces zodiac sign: sensitivity, psychic power, altruism
Deepest need of the Pisces zodiac sign: spiritual illumination
Weaknesses of the Pisces zodiac sign: negative moods, keeping bad company

Horoscope compatibilities of the Pisces zodiac sign with other zodiac signs:
* Zodiac Signs of greatest overall compatibility: Cancer, Scorpio
* Zodiac Signs of greatest overall incompatibility: Gemini, Sagittarius
* Zodiac Sign most helpful to career: Sagittarius
* Zodiac Sign most helpful for emotional support: Gemini
* Zodiac Sign most helpful financially: Aries
* Zodiac Sign best for marriage and/or partnerships: Virgo
* Zodiac Sign most helpful for creative projects: Cancer
* Zodiac Signs most helpful in spiritual matters: Scorpio, Aquarius

Aquarius

Aquarius is symbolized by the Water Carrier

Birthdates: January 20 - February 18

Element of the Aquarius zodiac sign: Air
Astrological quality of the Aquarius zodiac sign: Fixed (i.e. stability)

Planets and the Aquarius zodiac sign:
* Ruling Planet: Uranus
* Career Planet: Pluto
* Love Planet: Venus
* Money Planet: Neptune
* Planet of Health and Work: Moon
* Planet of Home and Family Life: Venus

Colours of the Aquarius zodiac sign: blue, ultramarine blue, grey
Gems of the Aquarius zodiac sign: opal, sapphire, black pearl, obsidian
Metals of the Aquarius zodiac sign: lead
Best day of the week for Aquarius zodiac sign: Saturday

Strongest virtues of the Aquarius zodiac sign: intellectual power, communication skills, ability to understand abstract concepts
Deepest need of the Aquarius zodiac sign: to know and to bring in the new
Weaknesses of the Aquarius zodiac sign: fixed ideas, rebelliousness, coldness

Horoscope compatibilities of the Aquarius zodiac sign with other zodiac signs:
* Zodiac Signs of greatest overall compatibility: Gemini, Libra
* Zodiac Signs of greatest overall incompatibility: Taurus, Scorpio
* Zodiac Sign most helpful to career: Scorpio
* Zodiac Sign most helpful for emotional support: Taurus
* Zodiac Sign most helpful financially: Pisces
* Zodiac Sign best for marriage and/or partnerships: Leo
* Zodiac Sign most helpful for creative projects: Gemini
* Zodiac Signs most helpful in spiritual matters: Libra, Capricorn

Capricorn

Capricorn is symbolized by the Goat

Birthdates: December 21 - January 19

Element of the Capricorn zodiac sign: Earth
Astrological quality of the Capricorn zodiac sign: Cardinal (i.e. activity)

Planets and the Capricorn zodiac sign:
* Ruling Planet: Saturn
* Career Planet: Venus
* Love Planet: Moon
* Money Planet: Uranus
* Planet of Communications: Neptune
* Planet of Health and Work: Mercury
* Planet of Home and Family Life: Mars
* Planet of Spirituality: Jupiter

Colours of the Capricorn zodiac sign: black, indigo
Gems of the Capricorn zodiac sign: black onyx
Metals of the Capricorn zodiac sign: lead
Best day of the week for Capricorn zodiac sign: Saturday

Strongest virtues of the Capricorn zodiac sign: sense of duty, organization, perseverance, patience
Deepest need of the Capricorn zodiac sign: to take charge and manage
Weaknesses of the Capricorn zodiac sign: negative thoughts, depression, undue materialism

Horoscope compatibilities of the Capricorn zodiac sign with other zodiac signs:
* Zodiac Signs of greatest overall compatibility: Taurus, Virgo
* Zodiac Signs of greatest overall incompatibility: Aries, Libra
* Zodiac Sign most helpful to career: Libra
* Zodiac Sign most helpful for emotional support: Aries
* Zodiac Sign most helpful financially: Aquarius
* Zodiac Sign best for marriage and/or partnerships: Cancer
* Zodiac Sign most helpful for creative projects: Taurus
* Zodiac Signs most helpful in spiritual matters: Virgo, Sagittarius

Oh my.. It's really me. Hmmm.. but the compatibility signs are only 60% true. I usually don't get along with leo or sagittarius and my close friends are mostly Taurus and Pisces.

Sagittarius

Sagittarius is symbolized by the Archer

Birthdates: November 22 - December 20

Element of the Sagittarius zodiac sign: Fire
Astrological quality of the Sagittarius zodiac sign: Mutable (i.e. flexibility)

Planets and the Sagittarius zodiac sign:
* Ruling Planet: Jupiter
* Career Planet: Mercury
* Love Planet: Mercury
* Money Planet: Saturn
* Planet of Health and Work: Venus
* Planet of Home and Family Life: Neptune
* Planet of Spirituality: Pluto

Colours of the Sagittarius zodiac sign: blue, dark blue
Gems of the Sagittarius zodiac sign: turquoise
Metals of the Sagittarius zodiac sign: tin
Best day of the week for Sagittarius zodiac sign: Thursday

Strongest virtues of the Sagittarius zodiac sign: honesty, generosity, vision
Deepest need of the Sagittarius zodiac sign: to expand mentally
Weaknesses of the Sagittarius zodiac sign: over-optimism, exaggeration, being generous with other people’s money

Horoscope compatibilities of the Sagittarius zodiac sign with other zodiac signs:
* Zodiac Signs of greatest overall compatibility: Aries, Leo
* Zodiac Signs of greatest overall incompatibility: Virgo, Pisces
* Zodiac Sign most helpful to career: Virgo
* Zodiac Sign most helpful for emotional support: Pisces
* Zodiac Sign most helpful financially: Capricorn
* Zodiac Sign best for marriage and/or partnerships: Gemini
* Zodiac Sign most helpful for creative projects: Aries
* Zodiac Signs most helpful in spiritual matters: Leo, Scorpio

Scorpio

Scorpio is symbolized by the Scorpion

Birthdates: October 23 - November 21

Element of the Scorpio zodiac sign: Water
Astrological quality of the Scorpio zodiac sign: Fixed (i.e. stability)

Planets and the Scorpio zodiac sign:
* Ruling Planet: Pluto
* Career Planet: Sun
* Love Planet: Venus
* Money Planet: Jupiter
* Planet of Health and Work: Mars
* Planet of Home and Family Life: Uranus

Colours of the Scorpio zodiac sign: red-violet
Gems of the Scorpio zodiac sign: bloodstone, topaz
Metals of the Scorpio zodiac sign: iron, steel
Best day of the week for Scorpio zodiac sign: Tuesday

Strongest virtues of the Scorpio zodiac sign: loyalty, determination, courage
Deepest need of the Scorpio zodiac sign: to transform
Weaknesses of the Scorpio zodiac sign: jealousy, fanaticism, vindictiveness

Horoscope compatibilities of the Scorpio zodiac sign with other zodiac signs:
* Zodiac Signs of greatest overall compatibility: Cancer, Pisces
* Zodiac Signs of greatest overall incompatibility: Leo, Aquarius
* Zodiac Sign most helpful to career: Leo
* Zodiac Sign most helpful for emotional support: Aquarius
* Zodiac Sign most helpful financially: Sagittarius
* Zodiac Sign best for marriage and/or partnerships: Taurus
* Zodiac Sign most helpful for creative projects: Pisces
* Zodiac Signs most helpful in spiritual matters: Cancer, Libra