Galastrology Coming soon

AI · Mathematics · Eastern astrology

Read the stars,
by the numbers.

Galastrology brings AI and rigorous mathematics to Tử Vi, Tarot and other spiritual traditions. Your chart is computed with astronomical precision, then an AI engine applies the classical rules of interpretation to it, and shows you every step.

First release in progress: Tử Vi birth charts

Join the waitlist See the engine at work

  • KimMetal
  • MộcWood
  • ThủyWater
  • HỏaFire
  • ThổEarth
  1. Tỵ Thiên Cơ
  2. Ngọ Tử Vi
  3. Mùi No major star
  4. Thân Phá Quân
  5. Thìn Thất Sát
  6. Dậu No major star
  7. Mão Thái DươngThiên Lương
  8. Tuất Liêm TrinhThiên Phủ
  9. Dần Vũ KhúcThiên Tướng
  10. Sửu Thiên ĐồngCự Môn
  11. Tý Tham Lang
  12. Hợi Thái Âm
  13. Thiên Bàn Heaven board Tử Vi in Ngọ
The 14 major stars, placed exactly as they fall when Tử Vi sits in Ngọ.

How the AI reads your chart

A master astrologer holds hundreds of rules in mind and weighs them against each other. Our engine does the same, systematically, on every palace of your chart.

  1. 01

    Compute

    Astronomical algorithms convert your birth moment to the Vietnamese lunar calendar, then place every star across the 12 palaces. Verified against reference charts.

  2. 02

    Reason

    The AI engine evaluates classical relationships across the whole chart: star brightness, the three-harmony triangle, opposing palaces, element generation and control.

  3. 03

    Trace

    Each conclusion links back to the rules that produced it and their source in the classical texts. You can always ask why.

  4. 04

    Explain

    A language model turns the findings into a clear, personal reading, grounded only in what the engine found. It cannot invent stars or predictions.

See the engine at work

The engine's findings for the Life palace of the chart above. Claude then writes them up as a reading, using these findings and nothing else.

Sample chart: Tử Vi in Ngọ. Your own chart arrives with the app. Get your own chart at launch →

  1. LIFE-TUVI-TEMPLE

    Tử Vi, the emperor star, sits alone in the Life palace at full brightness.

  2. TRIAD-TU-PHU-VU-TUONG

    Life, Career and Wealth form the classical Tử Phủ Vũ Tướng triangle.

  3. OPPOSITE-THAM-LANG

    Tham Lang in the opposing palace pulls against Tử Vi's composure.

  4. ELEMENT-PALACE-CONTROLS-NATIVE

    The palace's Fire controls the native Metal: pressure to manage, not ignore.

Press a button to have Claude turn the findings into a reading.

Illustrative sample: rule content is still under expert review. Readings are written by Claude (Anthropic) from the findings shown, and cached.

A first look

Screens from the Tử Vi app in development.

The five elements, as mathematics

Every star, palace and year carries an element. The outer ring is the generating cycle: Wood feeds Fire, Fire makes Earth, Earth bears Metal, Metal carries Water, Water nourishes Wood. The inner star is the controlling cycle.

Together they form a directed graph, and it is one of the first calculations our engine runs on your chart: which forces support you, and which hold you back.

Fire Earth Metal Water Wood

Our principles

Roadmap

  1. In development

    Tử Vi Đẩu Số

    Birth charts, decade and yearly cycles, and palace readings in the Tân Biên tradition.

  2. Next

    Tarot

    Structured spreads, card meanings, and how cards interact within a single draw.

  3. Later

    More traditions

    Other systems, same principle: transparent computation, reasoning with sources.

Be first to read your chart

One email when the Tử Vi app opens. Nothing else.

About

Galastrology is an independent project founded in 2026 in Vietnam. It is built by its founder working alongside AI agents powered by Claude, which write and test much of the code under human review. The same principle runs through the product: AI does the heavy lifting, and every result stays traceable.

Your birth data stays with you

Your chart is computed on your own device. No account needed, and your birth details are never stored on our servers. We only keep the email you give us for the waitlist.