What Is a Birth Chart? A Clear, Complete Guide

A birth chart (natal chart) is a snapshot of the sky at the exact moment, date and place you were born. It shows which sign and house each planet was in — the key to reading your character, strengths and life themes.

What does a birth chart show?

A chart has four core layers, read together:

• Planets — which life energy (Sun: self, Moon: emotions, Mercury: mind, Venus: love, Mars: action).
• Signs — how you express that energy.
• Houses — the area of life (relationships, career, money…) where it shows up.
• Aspects — how the planets talk to each other; your harmony and tension.

The core trio: Sun, Moon and Rising

Your Sun is your essence, your Moon your emotional world, your Rising the first impression you give. Your “star sign” (Sun sign) is only a third of the picture. See: the Sun, Moon and Rising trio.

Western and Vedic (Indian) charts

Western astrology uses the tropical (season-based) zodiac; Vedic uses the sidereal (fixed-star) zodiac, so your Sun sign can differ between them. Both read the same chart from different layers — complementary, not contradictory.

Get your own birth chart

Use our free birth chart calculator to see your chart in seconds, or explore a personalized birth chart analysis for a deeper, source-cited reading.

Related: How to read a birth chart · How is a birth chart calculated?