ATLAS by SYGNS — Your sky on the night you were born

ATLAS is a free astronomy tool by SYGNS (Denmark+Winter Entertainment) that reconstructs the exact sky over your birthplace at the moment you were born. It combines real astronomical data — the Swiss Ephemeris for planetary positions, the US Naval Observatory for lunar data, and the HYG Star Catalog (Hipparcos, Yale, Gliese) for star positions — with plain-language readings so anyone can understand their birth chart.

ATLAS has five modules:

Birth Star — the star whose light left its surface the year you were born.
Natal Chart — your full birth chart wheel and planetary placements.
Lunario — the moon on the night you were born, and where it moves now.
Skylines — your astrocartography, the places your chart comes alive.
Canopée — the full 3D dome of your birth sky.

Resources — how ATLAS works, the data behind it, and frequently asked questions.

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Your sky on the night you were born

Birth Star

Natal Chart

Lunario

Skylines

Canopée

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