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Western Astrology

Western Astrology Glossary

Plain-language definitions of the terms across the Western tools — from aspects and dignities to lots, points, and timing.

Conjunction (0°)
Two planets at the same point in the zodiac. Their energies fuse and act as a single force — for better or worse, depending on the planets.
Sextile (60°)
A supportive, opportunity-shaped angle. The help is real, but you have to reach for it — it rarely falls in your lap.
Square (90°)
A hard angle of friction and tension. It forces action and growth by refusing to let two drives sit comfortably together.
Trine (120°)
A flowing, easy angle between planets in the same element. Talent that comes naturally — and can be taken for granted.
Opposition (180°)
Two planets facing off across the chart. A push-pull you learn to balance, often played out through other people.
Quincunx (150°)
An awkward angle between signs that share nothing. Two urges that don't fit and need constant, low-level adjustment. Also called the inconjunct.

Houses & Angles

Ascendant (AC / Rising)
The sign rising on the eastern horizon at your birth. It sets the whole house framework and describes how you meet the world and come across.
Midheaven (MC)
The highest point of the chart, the cusp of the 10th house. It points to career, public standing, and what you're known for.
Descendant (DC)
The point opposite the Ascendant, the cusp of the 7th house. It describes partnership and what you seek in others.
Imum Coeli (IC)
The lowest point of the chart, opposite the Midheaven and the cusp of the 4th house. It marks home, roots, and private life.
Houses
Twelve divisions of the chart, counted from the Ascendant, each governing a life area — self, money, communication, home, and so on.

Dignities & Sect

Domicile
A planet in a sign it rules, with direct sign-based support, like Mars in Aries.
Exaltation
A sign where a planet is traditionally honoured and receives exceptional support.
Detriment
The sign opposite a planet's domicile, where it often works through less direct or less familiar methods.
Fall
The sign opposite a planet's exaltation, where its qualities often need more awareness and supportive chart context.
Peregrine
A planet with no essential dignity at that degree and no debility by detriment or fall. It relies more on the surrounding chart.
Triplicity
Rulership over one of the four elements, split by day and night charts — a milder, supportive dignity.
Bound (term)
A minor dignity dividing each sign into five unequal segments, each with a planetary ruler. Used for finer judgement.
Face (decan)
A minor dignity dividing each sign into three 10° faces, each with a planetary ruler.
Sect
Whether a chart is diurnal (Sun above the horizon) or nocturnal. It changes which triplicity ruler is active and adds context to planetary condition.
Almuten
The planet with the most dignity over a point. Over the Ascendant, it is a traditional indicator considered in broader synthesis.
Reception
When a planet sits in a sign ruled by another. If the favour is returned, it's mutual reception, which softens hard contacts.

Points & Lots

North Node (☊)
A calculated point where the Moon's path crosses the ecliptic heading north. Read as a direction of growth — what to develop.
South Node (☋)
Opposite the North Node. Read as familiar, well-worn ground — comfortable, but there to be moved beyond.
Black Moon Lilith
The empty focus of the Moon's orbit, not a body. Associated with the raw, untamed, and disowned parts of the self.
Chiron
A small body between Saturn and Uranus, the 'wounded healer'. Marks a tender spot that becomes a source of teaching.
Part of Fortune (⊗)
The most-used Arabic Part, built from the Sun, Moon, and Ascendant. Points to the body, wellbeing, and where fortune flows.
Part of Spirit (⊕)
The Sun's counterpart to Fortune. Points to purpose, will, and the career you actively pursue.

Chart Character

Element
The fourfold division of the signs — Fire, Earth, Air, Water. Your balance across them shows your basic temperament.
Modality (Quality)
The threefold division — Cardinal (initiating), Fixed (sustaining), Mutable (adapting). Shows how you tend to act.
Stellium
Three or more planets gathered in one sign or house — a concentration of energy that colours the whole chart.
Chart shape
The overall pattern the planets make around the wheel (Bowl, Bucket, Splash, and others), describing how your energy is distributed.
Hemisphere emphasis
Whether your planets lean east or west, above or below the horizon — a tilt toward self or others, private or public life.

Timing & Motion

Transit
A planet's current position compared to your birth chart. When it hits a birth planet exactly, it activates that theme — astrology's main timing tool.
Secondary progression
A symbolic method where each day after birth stands for a year of life, showing the chart's slow inner unfolding.
Solar arc direction
A timing method that advances every point by the Sun's yearly motion — about a degree a year — to flag activated years.
Solar return
The chart for the Sun's yearly return to its birth position, read as a preview of the year from one birthday to the next.
Annual profection
A simple time-lord method advancing one house per year of age, spotlighting a life area and its ruling planet each year.
Void-of-course Moon
The stretch when the Moon makes no more major aspects before leaving its sign. Traditionally a poor time to start something new.
Applying / separating
An aspect is applying while it tightens toward exact (pressure building) and separating once past exact (pressure fading).
Orb
How far from exact an aspect is, in degrees. A tight orb acts strongly; a wide one is subtler.
Retrograde
The apparent backward motion of a planet as seen from Earth. A time to review and revisit rather than push forward.
Out of bounds
A planet whose declination passes the Sun's yearly maximum, putting it 'off the leash' — its expression runs unusually free or extreme.
Ingress
A planet crossing from one sign into the next, shifting the tone of the matters it governs.
Station
The near-standstill when a planet turns retrograde or direct. Its themes feel unusually strong around the turn.

Every term here appears somewhere in the Western tools. Meanings are traditional in outline; individual astrologers vary in emphasis.