Astrological Symbols and Glyphs: Complete Reference

Every astrological chart is, at its core, a diagram written in a shorthand that has accumulated over roughly 2,000 years of astronomical and symbolic tradition. This page covers the full set of glyphs used in Western astrology — the symbols for the 12 zodiac signs, the classical and modern planets, the lunar nodes, and the major aspect lines — along with how to read them, where they differ across traditions, and the logic behind their visual design.

Definition and scope

An astrological glyph is a compact visual symbol assigned to a celestial body, zodiac sign, or angular relationship. The shorthand serves a practical purpose: a natal chart typically plots 10 or more planets across 12 houses, and spelling out "Mars in Capricorn, 7th house" for every placement would produce a document, not a diagram. Glyphs compress that information to a single mark.

The Western astrological symbol set contains:

12 zodiac sign glyphs — one per sign, from Aries ♈ through Pisces ♓
10 classical and modern planetary symbols — Sun ☉ through Pluto ♇ (plus Chiron ⚷ in many modern systems)
Lunar node markers — the North Node ☊ and South Node ☋
Aspect glyphs — geometric shorthand for the 5 major angular relationships (conjunction, sextile, square, trine, opposition)
Asteroid symbols — less standardized, but Ceres, Pallas, Juno, and Vesta each carry assigned glyphs in contemporary practice

Vedic astrology uses the same planetary glyphs in software contexts but applies different sign boundaries and a different house framework — a distinction covered in detail at Western vs Vedic Astrology.

How it works

The glyphs aren't arbitrary. Most are built from three elemental shapes: the circle (representing spirit or wholeness), the crescent or arc (representing soul or receptivity), and the cross (representing matter or the earthly plane). Combinations of these three components encode symbolic meaning into the visual form.

The Sun ☉ is a circle with a dot — pure spirit, a center of radiant identity. The Moon ☽ is a plain crescent, unencumbered by matter. Mercury ☿ layers all three: a crescent above, circle in the middle, cross below — spirit elevated above matter, with soul mediating between them. Mars ♂ is a circle with an arrow projecting outward at roughly 45 degrees, suggesting directional force. Venus ♀ inverts that relationship: the cross depends below the circle, matter subordinated to spirit.

Saturn ♄ and Jupiter ♃ are a useful contrast pair. Jupiter shows a crescent rising above a horizontal cross — soul transcending matter. Saturn reverses the arrangement, cross elevated over crescent, matter weighted above receptivity — which aligns with Saturn's traditional role as the planet of structure, limitation, and disciplined form. This symbolic grammar was not invented in one sitting; it accumulated through medieval and Renaissance astronomical manuscripts, with the Ptolemaic planets (Saturn, Jupiter, Mars, Sun, Venus, Mercury, Moon) forming the oldest layer.

The outer planets — Uranus ♅, Neptune ♆, Pluto ♇ — were assigned glyphs only after their telescopic discovery: Uranus in 1781, Neptune in 1846, Pluto in 1930. Their symbols blend the traditional elemental forms with unique additions, and different astronomical bodies retain distinct glyphs depending on context. Planetary rulers explains which signs each planet governs in both traditional and modern rulership frameworks.

Common scenarios

The situations in which glyph literacy becomes practically necessary fall into a few predictable categories:

Reading a natal chart printout — every major astrology software platform (Astro.com, Solar Fire, Sirius) uses the standard Western glyph set. A chart without glyph fluency is a page of undecipherable marks.
Interpreting aspect grids — the small grid in the lower-left corner of a standard chart wheel lists every planetary pair and their angular relationship using aspect glyphs (△ trine, □ square, ☌ conjunction, etc.). Understanding aspects in astrology requires knowing these at a glance.
Cross-referencing sign and planet glyphs in ephemerides — a printed ephemeris lists daily planetary positions using glyphs almost exclusively. A reader checking a Saturn return or Mercury retrograde date in a physical ephemeris needs to recognize ♄ and ☿ instantly.
Working with the lunar nodes — the North Node ☊ and South Node ☋ appear in virtually every chart discussion, particularly in North Node and South Node analysis, yet are routinely confused by beginners because they look nearly identical except for orientation.

Decision boundaries

Not every symbol encountered in astrological materials belongs to the standardized set, and the differences matter. Three boundary cases appear repeatedly:

Classical vs. modern planetary sets. Classical Western astrology (pre-1781) used only 7 planets. Modern practice extends to 10, and some practitioners add Chiron and 4 major asteroids, bringing a working chart to 15 or more symbols. The choice of which bodies to include affects chart interpretation, not just chart appearance — addressed in depth at asteroids in astrology and Chiron in astrology.

House system notation. The glyphs for planets and signs remain constant across house systems, but the house cusps themselves shift dramatically between Placidus and Whole Sign calculation — a structural difference with no glyph-level signal. Whole Sign Houses vs Placidus covers that distinction separately.

Software vs. traditional rendering. Digital platforms occasionally introduce variant glyphs — notably for Pluto, which appears as either ♇ (crescent over circle over cross) or ⯓ (a two-pronged variant) depending on the software. Neither is incorrect; the astronomical community has not adopted a single mandatory standard for the post-classical planets, which means two charts covering identical data can look visually different at the Pluto position. Recognizing both variants prevents misreading a placement as something other than Pluto.