A birth chart (or natal chart) is a map of where every planet was at the exact moment and place you were born. Imagine a cosmic fingerprint — no two people (except identical twins born minutes apart) share the same one.
It's drawn as a 360° wheel divided into twelve houses, with the zodiac signs arranged around the edge and the planets placed inside.
If you learn nothing else, learn these three:
A balanced self-understanding comes from reading all three together.
The wheel is split into twelve houses, each ruling a life area:
| House | Life Area |
|---|---|
| 1st | Self, appearance, first impressions |
| 2nd | Money, values, possessions |
| 3rd | Communication, siblings, learning |
| 4th | Home, family, roots |
| 5th | Romance, creativity, children |
| 6th | Health, work, daily routine |
| 7th | Partnerships, marriage |
| 8th | Transformation, shared resources |
| 9th | Travel, philosophy, higher learning |
| 10th | Career, public image |
| 11th | Friends, community, hopes |
| 12th | Subconscious, solitude, endings |
A planet in the 10th house expresses through career; the same planet in the 4th expresses through family.
Ten bodies act as "actors" in the chart:
Aspects are angles between planets — the "relationships" in your chart:
You don't need to be an astrologer to read your chart — Cosmic Compass calculates it free using real astronomical ephemeris. Just enter your birth date, time, and city.
Your birth date, exact birth time, and birthplace city. The time is essential — even a few hours changes your Rising sign.
Yes, if it uses real astronomical data (an ephemeris). Cosmic Compass computes planet positions from professional-grade Swiss Ephemeris calculations.
A horoscope is a time-based prediction (e.g., your daily reading). A birth chart is a fixed map of your personality based on your moment of birth.