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Astrian

A reference for the symbols, not the predictions.

Astrian is a working library on astrology. Birth charts are computed from public ephemerides published by NASA's Jet Propulsion Laboratory — the same data source used by space agencies for mission planning. The result is sub-arcsecond precision for solar system positions at any date and location.

The approach

The tradition of astrology associates planetary positions with symbolic patterns — Saturn with structure and limit, Venus with beauty and exchange, Mars with drive and conflict. This library describes those associations without predicting events. A natal chart is a map, not a destiny.

Available in three languages

Astrian publishes in English, Spanish, and Portuguese. All tools, articles, and profile pages are available in all three languages from day one.

Newsletter

A short reading once a month, in your inbox.

A note on the symbolism of the season, recent editorial pieces, and what to look for in next month's sky. No predictions.

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Support this project

Independent, no venture funding, no ads. A contribution keeps Astrian precise and free.

Support on Ko-fi (opens in new tab)

Astrian is in development. If you notice something that doesn't work as expected, we'd appreciate hearing about it at hello@astrian.app.