'Must know' terms of an
: Should only refer to
a thoroughly trained and experienced practitioner of the art and
science of Astrology.
: The art and
science of the study of the relationships between people and events
on earth, and the cycles, position, aspects, and motion of the
Sun, Moon and eight planets along the ecliptic.
Image at right: Stonehenge megaliths
near Salisbury, England. Evidence has revealed that one of the
functions of the site was to serve as an accurate astronomical
: Signs are divided into
thirds. Decanate is the name given to each third of a sign. It
comes from the word 'decan' or ruler. The first decan of a sign
is governed by its natural ruler. The second and third decans
are governed by the rulers of the signs in the same quality, in
Progressions and Transits :
The study and analysis of the continuing motion of the planetary
bodies as they relate to the correlating natal or mundane horoscope.
: Tables of planetary
positions for any place on earth at given times.
Astrology : Horoscope
cast for an event, for a question, or to determine a favorable
time to act, such as in starting a business, getting married.
Chart, Nativity, Natal chart or Map :
A plotting of
the geocentric positions of the planetary bodies in relation to
earth, as they move through the ecliptic in their annual journey
around the sun; and in relation to the daily motion of the earth.
They are charted in relation to the place and time of an event,
Image at right: A
sculpted depiction of the zodiac sign Aquarius on the Virgin portal
of Amiens cathedral, France.
: One of the twelve divisions
of the celestial equator. Similar to the division of the ecliptic
or zodiac into signs, and numbered one to twelve counterclockwise
from the ascendant.
Astrology : The study
of human affairs through the horoscopes of political leaders,
historical events, or celestial phenomena.
Astrology : Most prevalent
branch of Astrology. The charting and interpretation of a horoscope
made for the exact time and place of a person's birth.
or Subject : Refers to
the person for whom a horoscope is charted, often referred to
in the interpretation of the chart.
: Referred in Astrology
as any one of the 10 heavenly bodies situated along the ecliptic.
The Sun is a star, and the Moon is the Earth's satellite but they
too are referred to as planets, for sake of ease of use. The ten
planets are in their natural order from the Sun: Sun, Moon, Mercury,
Venus, Mars, Jupiter, Saturn, Uranus, Neptune and Pluto.
Image at right: The
planet Saturn. Named for the Greek god Cronus and ruler of the
astrological sign Capricorn.
Sign, Ascendant, First House :
The cusp, the beginning degree, based on the time of day and place
of birth of the subject, of the first house, and the first house
itself. This house determines a person's public image, the face
we show to the world, and how the world sees us. One of the primary
points in a chart.
: The planet assigned
to one or two of the signs, as Mars to Aries and co-ruler of Scorpio.
Also refers to the ruler of an individual chart.
: Interpretation of a
horoscope by relating the position of the planets today, or for
a particular time span to the position of the planets in the birth
or mundane chart.
: The 28° belt that the
planets travel within. See "ecliptic," also "Constellation."
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