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(Redirected from Western astrology)

Part of the Magick in Theory & Practice series.

An example of a natal chart, showing the relationship of the planets and signs of the Zodiac at the time of birth
An example of a natal chart, showing the relationship of the planets and signs of the Zodiac at the time of birth
Astrology (from Greek: αστρολογία = άστρον, astron, "star" + λόγος, logos, "word") is any of several traditions or systems in which knowledge of the apparent positions of celestial bodies is held to be useful in understanding, interpreting and organizing knowledge about reality and human existence on earth. All are based on the relative positions and movements of various real and construed celestial bodies, chiefly the Sun, Moon, planets, and lunar nodes as seen at the time and place of the birth or other event being studied. A practitioner of astrology is termed an astrologer, though they are sometimes referred to as an astrologist.

Many of those who practice astrology believe that the positions of certain celestial bodies either influence, or correlate with but do not influence, people's personality traits, important events in their lives, and even physical characteristics.

For many astrologers the purported relationship between the celestial bodies and events on earth need not be causal, nor even scientific. Although there are astrologers who try to put astrology on sound scientific principles, for many more it is a technology and an art that merges calculations with intuitive perceptions. Some believe that the core principles of astrology are based upon the ancient Hermetic maxim: As Above, So Below.

Table of contents


In past centuries astrology often relied on close observation of astronomical objects and the charting of their movements, which might be considered a protoscience in this regard. In modern times astrologers have tended to rely on data drawn up by astronomers and set out in a set of tables called an ephemeris which shows the changing positions of the heavenly bodies through time.

Central to all astrology is the natal chart (other names for this diagram in English include horoscope, natus, nativity, astrological chart, map, birth chart, cosmogram, or simply chart). This is a diagrammatic representation in 2 dimensions of the celestial bodies' apparent positions in the heavens from the vantage of a location on Earth at a given time and place. Interpretation of a natal chart is governed by:

Common traditions of astrology include Western astrology, Chinese astrology, Jyotish (Vedic astrology) and Kabbalistic astrology. All of these can be subdivided by type, such as natal astrology (the study of a person's birth, or natal chart), horary astrology (a chart drawn up to answer a specific question), and electional astrology (a chart drawn up ahead of time to determine the best moment to begin an enterprise or undertaking). Mundane astrologers believe correlations exist between geological phenomena (such as earthquakes, volcanic eruptions, etc.) and astronomical phenomena (the movement of celestial bodies in relation to Earth). Political astrology has existed for thousands of years as well, while some astrologers use ancient methods that are supposed to be able to predict the weather and weather-related phenomena (storms, floods, etc.), which is collectively known as meteorological astrology.

A few Western but all Jyotish (Hindu) astrologers use the sidereal zodiac that uses the true astronomical positions of the stars. The majority of Western astrologers base their work on the tropical zodiac that uses a view of the heavens as seen 2000 years ago.


The Zodiac

Aries (♈)
Taurus (♉)
Gemini (♊)
Cancer (♋)
Leo (♌)
Virgo (♍)
Libra (♎)
Scorpio (♏)
Sagittarius (♐)
Capricorn (♑)
Aquarius (♒)
Pisces (♓)

The Planets

Sun (☉)
Mercury (☿)
Venus (♀)
Luna (☽)
Mars (♂)
Jupiter (♃)
Saturn (♄)
Uranus (♅)
Neptune (♆)
Pluto (♇)

Other components


Astrology provides a direct link to some of the longest held human beliefs. Its continued appeal may rest on its ability to link an individual's life to the wider cosmos and so give a feeling of uniqueness, meaning and of connection to the totality of things. Astrology also makes use of basic, archetypal qualities found universally throughout humanity, and some people find it a useful intuitive tool with which to describe themselves, others, and the relationships between them.

Most serious astrologers scorn trivial horoscope predictions supplied by newspapers as nothing but a way to entertain readers. Serious astrologers see all popular astrology in which people are labeled on the basis of their sun sign alone as frivolous and not worthy of defense. The sun sign is regarded as but one of many factors, which must be taken into account when interpreting one's horoscope.

An individual astrological reading by a skilled astrologer—or by the individual himself or herself if he or she is well-versed enough in astrology—is thought to provide a way for the individual to divine his or her own feelings about the present, and to better understand his or her own personality. This can give the individual the opportunity to understand those feelings and patterns of behavior, which may be barriers to possible futures, and so change their actions in the present to bring about a desired future. In this respect it is more closely linked to tarot, I Ching and modern psychotherapy than to astronomy.

An individual is always seen as the ultimate master of their destiny, and given sufficient will and purpose, as being able to overcome the most adverse astrological indications. However, the degree of struggle necessary will depend on the astrological circumstances in which they enact their project.

Most astrologers make no claim to be practicing a science and see their skill as an art, which gives a structure to a dialogue with their client. An astrologer's success would need to be measured in terms of the happiness and well being of their subjects rather than the mechanical prediction of events. Astrology has, however, taken on new astronomical concepts as they have been discovered and added its own symbolism to them. Thus the outer planets discovered since 1781, because of their slow movement across the zodiac, sit in the same position in the charts of whole generations. They have been assigned a role in interpreting the processes of large groups; of nations, institutions, ideas, beliefs and the generations themselves.

The 12-sign astrological zodiac has been in place for well over 2000 years and is still used by most Western astrologers, while Ophiuchus has only been located along the astronomical ecliptic for the past 75 years or so. In astrology, the size of the actual astronomical constellations is a non-issue because most Western astrologers use the tropical zodiac, where the ecliptic is divided into 12 equal portions exactly 30 degrees each to get the 12 astrological signs. (12 signs x 30 degrees each sign = the 360 degrees of the ecliptic) The beginning of the astrological year is the beginning of Spring in the Northern Hemisphere (the vernal equinox) and not when the Sun crosses an arbitrary dividing line drawn up in modern times to denote where the sign of Aries begins.

Elements of astrology

Unlike the daily horoscope in the newspaper, astrology is very complex with many components. These include (but are not limited to): the planets, the 12 signs of the Zodiac, aspects, houses, elements (air, earth, fire, & water), qualities (cardinal, fixed, & mutable), the ascendant, retrograde motion, other heavenly bodies (asteroids, fixed stars, & large moons), transits and returns, orbs, equinoxes & solstices. Below are brief descriptions of the major components.

For a more detailed discussion of the technical aspects of astrology, see Components of Astrology.

The Planets


The planets include the seven "classical" planets—Sol, Mercury, Venus, Luna, Mars, Jupiter, and Saturn—plus the modern additions of Uranus, Neptune, and Pluto. The following is a general description of their characteristics:

Retrograde Motion

At times, because of an elliptical orbit, some planets appear to move backwards in the sky. This backwards movement is referred to as "retrograde" motion. There is no consensus regarding the effects of a planet going retrograde, although some astrologers believe it does have a general affect on a planet's influence.

The Zodiac


The Zodiac refers to the twelve constellations that fall on the plane of the ecliptic (the path the sun takes across the sky over the course of the year). The following is a general description of their characteristics:


Most astrological systems divide the astrological chart (or natal chart) into twelve houses, which depend more on the time and place of birth (or initiation) than on the date. To calculate the houses of a chart it is necessary to know the exact time of birth. If the time of birth is unknown some astrologers will assume a birth at noon or sunrise, but an meaningful interpretation of such a chart cannot be expected.

There are many ways to divide the ecliptic into twelve houses. The main House systems are: Placidus (the most common), Equal, Whole, Regiomontanus, Meridian, Campanus, Porphyry, Koch, Topocentric.

The houses are departments of life, described in terms of man's physical surroundings as well as personal life experiences, and in modern astrology have some correspondence with their natural sign, i.e. the first house has a natural affinity with the first sign, Aries, and so on. (However the latter is not true in ancient astrology* where the rulership of select Houses is held by the Planetary Joys also known as the Joys of the Houses**, not the Zodiac.)

The following is a general description of their characteristics:

(*)Footnote: The house system developed with the Greeks and added a separate context layer attributed to the area of ones life on top of an already developed zodiacal and planetary system rooted in Egypt and Babylon.

(**)Footnote: Joys of the Houses: 1st=Mercury, 3rd=Moon, 5th=Venus, 6th=Mars, 9th=Sun, 11th=Jupiter, 12th=Saturn


The angular relationships between the planets as they actually exist in space are termed “aspects”. These aspects are believed to influence the nature of the planets and how they work together. The following is a general description of the major aspects:


The classical elements of Air, Earth, Fire, and Water are also applied to astrology.

Elemental qualities

The qualities, or "quadruplicies", are assigned to the Signs and represent different states. The three qualities are:

See also

External links

Astrology and its history

The astrologer's tools


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