Nine Star Ki (九星気学, Kyūsei Kigaku — "nine star energy study") is the Japanese school of the nine-star system that also underlies Chinese Flying Star feng shui and the Mewa ("birth-mark") numbers of Tibetan astrology. All three traditions share the same engine: the nine numbers of the Lo Shu magic square, each carrying an element of the five-element cycle (Water, Earth, Wood, Metal, Fire), a colour, and a trigram of the I Ching. Where feng shui flies the stars through the sectors of a building, Nine Star Ki flies them through time — and reads the numbers active at your birth as a portrait of your personal energy.

The reading rests on three numbers. The principal star, from the birth year, is your core constitution — the deepest layer of character that matures with age. The character star (also called the month or emotional star), from the solar birth month, is the inner self: how you feel, react, and behave with those closest to you. The energetic star, derived from the first two, is the surface self — the impression strangers form before they know you. Together they are written as a three-number signature, such as 9 · 8 · 3. Note that the Ki year begins at Risshun (≈ 4 February) and the months at the solar terms, so January births take the previous year's star — and the Tibetan tradition counts the same year-numbers from Losar, its new year.

What this calculator shows

• Your three Ki numbers — principal, character, and energetic star
• Each star's element, colour, I Ching trigram, and Tibetan Mewa parallel
• A full personality reading of your principal star, plus your inner self and first-impression profiles
• A reference table of all nine stars with yours highlighted

Nine Star Ki is widely used in Japan for character reading, compatibility, and choosing favourable directions and timings for moves and journeys. Enjoy it as a complement to your Vedic janma rashi and nakshatra — and for a full personal reading, consult a qualified astrologer.