Aspects in Astrology
The angles that connect your planets: conjunction 0°, sextile 60°, square 90°, trine 120°, opposition 180°
What are aspects in astrology?
Aspects are the angular relationships between planets in a chart. The five major (Ptolemaic) aspects are the conjunction (0°), sextile (60°), square (90°), trine (120°) and opposition (180°) — each describing how two planetary energies talk to each other: fusing, supporting, clashing or confronting.
Astrologers sort them into soft and hard aspects. Soft (harmonious) aspects — the trine and sextile — bring ease, talent and flow; hard (challenging) aspects — the square and opposition — bring the friction that fuels growth; the conjunction is neutral, amplifying whatever it touches. Minor aspects such as the quincunx (150°), semi-sextile (30°), semi-square (45°) and sesquiquadrate (135°) add finer detail to the picture.
The 5 Major Aspects & Their Degrees
☌Conjunction (0°)
0° Planets merged at the same degree — the most powerful aspect. It amplifies both planets; the outcome depends on their nature. Three or more planets conjunct form a stellium.
⚹Sextile (60°)
60° A soft aspect of opportunity between compatible elements (fire–air, earth–water). Talents that flow — but only when you act on them.
□Square (90°)
90° The classic hard aspect: friction, tension, challenge. Squares create the inner conflict that forces action — most engines of achievement in a chart are squares.
△Trine (120°)
120° The softest aspect: ease and natural talent between signs of the same element. Gifts that come so easily they can be taken for granted.
☍Opposition (180°)
180° A face-off across the zodiac between opposite signs. A hard aspect demanding balance and integration — often lived out through relationships.
Orbs, Patterns & How to Read Aspects
Orbs in Astrology
The orb is the allowed deviation from the exact angle — typically up to 8–10° for conjunctions and oppositions, 6–8° for squares and trines, 4–6° for sextiles, with wider orbs for the Sun and Moon. The tighter the orb, the stronger the aspect.
Applying and Separating
An applying aspect — the faster planet still moving toward exactness — is stronger and more charged than a separating one. It shows whether a theme is building or already resolving.
Aspect Patterns
Aspects combine into larger patterns: a stellium (three or more planets bunched together), a grand trine (three trines in one element), a T-square (two squares meeting an opposition) and the rare grand cross. Patterns mark a chart's dominant storyline.
How to Read an Aspect
Read the planets first, the angle second. Hard aspects (square, opposition) build strength through friction; soft aspects (trine, sextile) supply talent and ease. Neither is good or bad — a working chart needs both.
Astrology aspects FAQ
The five major aspects are angles between planets: the conjunction (0°) fuses two planets into one combined force, the sextile (60°) creates friendly opportunity, the square (90°) produces friction that demands action, the trine (120°) gives effortless flow, and the opposition (180°) sets up a tension between two poles that seeks balance.
The conjunction is generally considered the strongest aspect, because the two planets occupy the same degree and act as one merged energy. For any aspect, the tighter the orb — the closer the angle is to exact — the more strongly it works in the chart.
Hard (challenging) aspects are the square (90°) and opposition (180°) — they generate tension, and with it motivation and growth. Soft (harmonious) aspects are the trine (120°) and sextile (60°) — they bring ease and support. The conjunction is neutral: its character depends on the planets involved. A strong chart usually needs both kinds.
An orb is the allowed deviation from an aspect’s exact angle within which the aspect still counts. Most astrologers use orbs of about 6–8° for the major aspects — so a planet 95° from another still forms a square — with wider orbs for the Sun and Moon and only 2–3° for minor aspects.
A stellium is a cluster of three or more planets (many astrologers require four) in the same sign or house. It concentrates the chart’s energy heavily in one place, making that sign or house a dominant theme of the whole life.
The most used minor aspects are the quincunx or inconjunct (150°), semi-sextile (30°), semi-square (45°) and sesquiquadrate (135°). They act like quieter versions of the majors — the quincunx in particular marks an awkward adjustment between planets that share neither element nor polarity — and are read with tight orbs of about 2–3°.
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