The journal

Astrology basics

How to find your way around a birth chart wheel

A simple visual guide to the sign labels, numbered houses, and four main markers on a birth chart wheel.

A birth chart wheel can look busy. You can get your bearings before you know what any symbol means: find the sign labels, the house numbers, and a few markers around the circle.

Look at the outer edge first

In many Western chart wheels, the names or symbols around the rim mark the twelve zodiac signs. Numbers inside the circle mark the twelve houses. They are two sets of labels, even when they appear close together.

Find the four signposts

In a common layout, ASC is on the left, DSC is opposite on the right, MC is near the top, and IC is opposite near the bottom. The first house starts by ASC; the seventh is across from it. Follow the printed house numbers counterclockwise from 1 to 12. If your chart looks different, use its labels rather than guessing from the drawing.

Trace just one position

Choose one marked position, such as the Sun, and note the sign sector and numbered house slice that contain it. You have now located it on the wheel; interpretation can wait. If the birth time is unknown, treat the house labels as uncertain because the chart's house layout depends on time and place.

A few common questions

Why are some house slices different sizes?

Astrologers use different ways to divide a chart into houses. Some methods draw equal sections; others can draw unequal ones. Read the numbers shown on your chart.

Sources & further reading

Astrology sources describe their own traditions and methods; they do not establish predictive accuracy. The writing exercises are original Lodestar editorial material.

Keep exploring.

Astrology basics · · 3 MIN READ

Zodiac signs and constellations: why the names match but the maps differ

The twelve signs of the tropical zodiac are equal sections of a circle. Astronomical constellations are regions of the real sky. Here is why the two maps differ.

Read the story

Astrology basics · · 3 MIN READ

Planets, signs, and houses: three parts of one chart sentence

Learn the different jobs of planets, signs, and houses in a birth chart with one plain example and no fixed personality labels.

Read the story

Astrology basics · · 3 MIN READ

Cardinal, fixed, and mutable: a simple guide to the three modes

Western astrology groups zodiac signs by starting, sustaining, and changing. Learn the three modes through the rhythm of a season.

Read the story

Astrology basics · · 3 MIN READ

What are aspects? Reading the angles between chart positions

The lines inside a birth chart mark angular relationships. Learn five common aspects without treating them as good or bad verdicts.

Read the story

Astrology basics · · 3 MIN READ

What does retrograde mean? A planet's apparent backward step

Retrograde describes an apparent change in a planet's position against the sky. Learn the simple astronomy before considering its astrological symbolism.

Read the story

Astrology basics · · 2 MIN READ

The twelve houses: a simple map of life areas

A short guide to what houses 1 through 12 are used to describe in Western astrology, with a few everyday examples.

Read the story