Your Birth Chart, Explained

A birth chart (or natal chart) is a snapshot of the sky at the exact moment you were born. AstroPi maps where the sun, moon and planets sat across the twelve houses and signs — calculated from real astronomical data right on your device — and together they tell the story of your personality, strengths and life themes.

The big three: Sun, Moon & Rising

Your Sun sign is your core identity, your Moon sign rules your emotions and inner world, and your Rising sign (ascendant) is the face you show the world. AstroPi shows all three the moment your chart is calculated.

Planets, houses & elements

Each planet represents a kind of energy — Mercury for the mind, Venus for love, Mars for drive — while the twelve houses show the life areas where it plays out. AstroPi also shows your element balance across fire, earth, air and water.

Why birth time matters

Your exact birth time sets your rising sign and house placements. Without it you can still learn a lot, but with it your chart — and your astrocartography map — becomes truly personal and accurate.