Astrological aspects describe angular relationships between planets and other chart points. They help astrologers discuss how symbolic functions interact, but are not judgments or predictions by themselves. This guide explains the major angles, orb and practical principles for interpretation.
What is an aspect and an orb?
An aspect is a defined angular distance between the ecliptic longitudes of two bodies or points. The five major aspects most often discussed are conjunction 0°, sextile 60°, square 90°, trine 120° and opposition 180°. The angle is calculated from zodiacal position, not from how close the planets look in the sky.
An aspect need not be mathematically exact. An orb is the deviation from the exact angle; the accepted range varies by school, planets, aspect and whether the chart is natal or transiting. A professional reading should state its conventions instead of treating one orb as universal.
The five major aspects
A conjunction brings planetary functions together in one area; its character depends on the planets and the wider chart. A sextile at 60° is often described as cooperation or an available opportunity that still needs engagement. A square at 90° suggests symbolic friction and a need to act; it does not automatically mean crisis or failure.
A trine at 120° is traditionally associated with ease of flow, which does not always mean growth without effort. An opposition at 180° highlights polarities and the need for balance or dialogue. Dividing aspects into “good” and “bad” is too simple: the same pattern may be experienced as a resource, challenge or both.
Minor aspects, precision and context
Some schools also interpret minor angles such as semisextile 30°, semisquare 45°, quincunx 150° and sesquiquadrate 135°. There is no full agreement on their importance or orbs. Check the method used and avoid multiplying meanings from weak, wide connections.
An aspect’s meaning depends on the planets, their condition within a given tradition, houses, signs, chart angles and other aspects. An angle’s name does not describe a specific life event. Astrologers often give closer aspects more weight, but this is not a scientific measure of causation.
Natal aspects and transits
In a natal chart, aspects provide a language for relationships between functions; in transit work, current positions are compared with the birth chart. These are different layers of analysis. A transit may be used as a prompt to consider a theme or period, but it does not predict one unavoidable event.
Read an aspect with houses, signs, rulers and the full pattern, then consider whether the interpretation fits real circumstances. Do not use astrology to diagnose health, judge a person’s worth or make risky choices. Astrology remains a symbolic system, not a scientific forecasting tool.
Frequently asked questions
What are the major astrological aspects?
The five most commonly used are conjunction (0°), sextile (60°), square (90°), trine (120°) and opposition (180°). Some schools also use minor aspects.
What does an aspect orb mean?
An orb is how many degrees a relationship differs from an exact aspect angle. The accepted range varies by school and by the planets involved; there is no single rule used by everyone.
How to use this guide: Astrology is used here as a symbolic language for reflection, not as a diagnosis or a guarantee about the future.