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Astrology glossary

Every term you will meet in your chart, in plain English. 40 definitions, no jargon left unexplained.

The big three

Sun

Your core identity and what energises you. The sign your Sun is in is your familiar "star sign", but it is only one piece of the chart.

Moon

Your inner, emotional self: what you need to feel safe and how you react instinctively. Needs an accurate birth time to place precisely.

Rising / Ascendant (ASC)

The sign that was rising on the eastern horizon at your birth. It shapes how you meet the world and first come across. Needs your birth time and place.

Elements

Fire

Aries, Leo, Sagittarius. Energy, drive and enthusiasm. Acts first.

Earth

Taurus, Virgo, Capricorn. Practical, grounded and focused on the real and useful.

Air

Gemini, Libra, Aquarius. Mental and social: ideas, connection and communication.

Water

Cancer, Scorpio, Pisces. Feeling, intuition and emotional depth.

Modalities

Cardinal

Aries, Cancer, Libra, Capricorn. The starters. They begin each season and like to initiate.

Fixed

Taurus, Leo, Scorpio, Aquarius. The stabilisers. They sustain and hold their ground.

Mutable

Gemini, Virgo, Sagittarius, Pisces. The adapters. They close each season and adjust to change.

The planets

Mercury

How you think and communicate: speech, logic and learning.

Venus

What you value, how you love, and your sense of beauty and pleasure.

Mars

Drive, action and desire: how you pursue what you want and handle conflict.

Jupiter

Growth, luck and meaning: where you expand and seek the bigger picture.

Saturn

Discipline, limits and time: where you work hard and build lasting structure.

Uranus

Change, invention and independence: where you break from the norm.

Neptune

Dreams, imagination and the unseen: where boundaries dissolve.

Pluto

Power and transformation: where you go deep and are reborn.

Angles & points

Descendant (DSC)

The point opposite the Ascendant. It describes partnership and what you seek in others.

Midheaven (MC)

The highest point of the chart. It relates to career, reputation and public life.

Imum Coeli (IC)

The lowest point, opposite the Midheaven. It relates to home, roots and private life.

Lunar nodes

The North and South Nodes: points tied to growth and the familiar, often read as a sense of direction.

Houses

Houses

Twelve sections of the chart, set by your birth time and place. Signs and planets show how you are; houses show where it plays out in life.

Whole-sign houses

The house system Astrologyic uses: each house is exactly one sign, starting from your Rising sign. Simple and beginner-friendly.

1st house

Self, identity and appearance.

7th house

Partnership, marriage and close one-to-one relationships.

10th house

Career, status and your public role.

Aspects

Aspect

The angle between two planets, measured in degrees. Aspects show how two parts of your chart work together or clash.

Conjunction

Roughly 0° apart. The two planets blend and act as one force.

Sextile

Roughly 60° apart. An easy, supportive link that offers opportunity.

Square

Roughly 90° apart. Friction that creates tension and drive to act.

Trine

Roughly 120° apart. A smooth, harmonious flow between the two planets.

Opposition

Roughly 180° apart. A push-and-pull that asks for balance.

Orb

How far from exact an aspect can be and still count. Tighter orbs are stronger.

Key terms

Natal chart

A map of the sky at the exact moment and place you were born. The foundation of everything in astrology.

Tropical zodiac

The zodiac used in Western astrology, measured from the spring equinox. It is what gives you your familiar Sun sign.

Retrograde

When a planet appears to move backward from Earth. It does not really reverse; it marks a more inward, reflective expression of that planet.

Ruling planet

The planet that governs a sign (for example Mars rules Aries). Its placement colours how that sign behaves.

Transit

Where a planet is in the sky right now compared with your natal chart. The basis of "what is happening for you now".

Synastry

Comparing two charts to see how two people interact: the astrology of compatibility.