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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.

Optional. Helps you identify this chart later.

Day, month, year

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I know the precise birth time

Start typing your city

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.

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

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