Find your Nine Star Ki main star
Nine Star Ki is a Japanese energy system of nine stars, each tied to one of the Five Elements. Your main star — set by your birth year, corrected for Setsubun — describes your core temperament, your strengths and your natural rhythm. Birth Codex determines it precisely, alongside 22 more cosmic systems.
Calculated with Swiss Ephemeris — astronomically precise data
23 cosmic systems · No sign-up
The 9 stars
Frequently asked questions
How do I find my Nine Star Ki main star?✦
Your main star is based on your birth year — but the year turns at Setsubun (early February), not January 1. Birth Codex applies the correction and determines your star precisely.
What is Nine Star Ki?✦
Nine Star Ki (Kyusei Kigaku) is a Japanese system of nine energies based on the Chinese Five Elements. Your main star describes your core temperament and life rhythm.
What does my main star tell me?✦
Your main star's element and number reveal your nature, strengths and the patterns you grow through. Birth Codex sets it alongside 22 more cosmic systems.