Birth chart symbols and glyphs
Birth chart symbols are glyphs placed around a wheel to show planets, signs and aspects. The four axes mark the Ascendant, Descendant, Midheaven and Imum Coeli. A small R beside a planet marks retrograde motion. Read each glyph with its chart position, then use the tables to identify unfamiliar symbols and understand how astrology associates them with themes for reflection.
Plate 1. Planets
| Name | Symbol | Kind | Rules |
|---|---|---|---|
| Sun | Luminary | Leo | |
| Moon | Luminary | Cancer | |
| Mercury | Personal planet | Gemini, Virgo | |
| Venus | Personal planet | Taurus, Libra | |
| Mars | Personal planet | Aries | |
| Jupiter | Social planet | Sagittarius | |
| Saturn | Social planet | Capricorn | |
| Uranus | Outer planet | Aquarius | |
| Neptune | Outer planet | Pisces | |
| Pluto | Outer planet | Scorpio |
Plate 2. Signs
| Name | Symbol | Element | Modality | Ruler |
|---|---|---|---|---|
| Aries | Fire | Cardinal | Mars | |
| Taurus | Earth | Fixed | Venus | |
| Gemini | Air | Mutable | Mercury | |
| Cancer | Water | Cardinal | Moon | |
| Leo | Fire | Fixed | Sun | |
| Virgo | Earth | Mutable | Mercury | |
| Libra | Air | Cardinal | Venus | |
| Scorpio | Water | Fixed | Pluto | |
| Sagittarius | Fire | Mutable | Jupiter | |
| Capricorn | Earth | Cardinal | Saturn | |
| Aquarius | Air | Fixed | Uranus | |
| Pisces | Water | Mutable | Neptune |
Plate 3. Aspects
| Name | Symbol | Angle | Orb | Nature |
|---|---|---|---|---|
| Conjunction | 0° | ±8° | Neutral | |
| Opposition | 180° | ±8° | Hard | |
| Trine | 120° | ±8° | Flowing | |
| Square | 90° | ±8° | Hard | |
| Sextile | 60° | ±6° | Flowing | |
| Quincunx | 150° | ±3° | Neutral | |
| Semisextile | 30° | ±2° | Neutral | |
| Semisquare | 45° | ±2° | Hard | |
| Sesquiquadrate | 135° | ±2° | Hard | |
| Quintile | 72° | ±2° | Neutral |
Symbols form a visual map
A birth chart uses a separate glyph for each planet, sign and aspect. These marks sit in a wheel, where their positions show how the chart is arranged. A planet glyph appears in a sign and may form an aspect with another planet. The symbols are a compact way to read these relationships, not a set of predictions or proof. Their meaning is interpreted within astrology as a symbolic language for reflection.
The four axes mark directions
Four labels divide the wheel into key points: AC means Ascendant, DC means Descendant, MC means Midheaven, and IC means Imum Coeli. They mark the chart's main angles and help orient the placements around the wheel. Each axis is associated with a different area of experience in an astrological reading. Read the label as a chart reference first, then consider its symbolic meaning alongside the nearby placements.
Retrograde has a small mark
A planet may have a small R with a tail beside its glyph. This is the retrograde mark. It indicates that the planet appears to move backwards when viewed from Earth. In astrology, retrograde motion can be read as a reason to give a planet's themes a more inward or revisiting quality. The mark describes apparent motion in the chart; it does not say that a planet has physically reversed its orbit.
Use the tables as a key
The appearance of a glyph can change with the font or chart software. Its lines may be thicker, more curved or slightly arranged differently, while the symbol still refers to the same chart element. If a mark is unfamiliar, compare its overall shape with the tables for planets, signs and aspects. Then return to the wheel and check where it appears and what it connects. This keeps the glyph tied to its chart context.
Questions
Why are some birth chart symbols hard to recognize?
Fonts and chart software draw glyphs in different styles. A mark may look narrower, rounder or more ornate than the version you know. Compare its shape with the relevant table, then use its position in the wheel to see whether it labels a planet, sign or aspect.
What does the R beside a planet mean?
The small R with a tail marks a planet that appears to move backwards from Earth's viewpoint. Astrology calls this retrograde motion. It can be read symbolically as a more inward or revisiting expression of that planet's themes, rather than as a prediction.
How do the axis labels relate to the chart wheel?
AC, DC, MC and IC mark the four main angles of the wheel. They stand for Ascendant, Descendant, Midheaven and Imum Coeli. Their placement helps orient the chart, and astrologers associate each angle with a different area of experience.
Can one glyph mean different things in different charts?
A glyph identifies a chart element, but its interpretation depends on where it appears and how it relates to other placements. Check the table to identify the mark, then read it in context. Astrology treats these meanings as symbolic starting points for reflection, not fixed claims.