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astrian

Calculate your birth chart

Enter your birth data and we'll calculate your natal chart with the precision of a NASA mission. No registration required.

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I know the precise birth time

Your data is processed securely. We don't share birth information with third parties.

Calculations use NASA JPL DE441 ephemeris data, the same used in spacecraft missions.

A short reading once a month

Editorial astrology. No horoscopes, no predictions.

astrian

Support this project

Astrian is an independent project with no venture funding and no advertising. The charts are computed from the same NASA JPL ephemerides used for spacecraft navigation — maintaining that level of precision requires sustained work. If this tool is useful to you, a contribution helps keep it running, accurate, and openly available.

Support on Ko-fi →

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