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Natal Aspect Pattern Calculator

Find Grand Trines, T-squares and Yods among the Sun, Moon and eight planets. Every result shows the three measured edges and their deviations from exact geometry.

STAR & SIGIL

See the sky at your birth

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Use the recorded local clock time and historical UTC offset. Planetary longitudes are geocentric, so this calculation does not need birthplace coordinates.

A missing time checks seven moments across the local date and marks any result as possible. The calculation runs in this browser without an account or app connection.

How to read a result

Each card gives all three edge angles. The deviation column is the distance from the exact target angle: for example, a measured 118.6° trine deviates by 1.4° from 120°. A pattern appears only if every required edge lies within your chosen orb. The largest edge deviation summarizes the loosest part of the shape.

The numbered diagram places its three bodies at their actual tropical longitudes. Read the table for precise angles; the picture is a geometric aid. T-squares and Yods mark one focal planet. This finder uses only the ten planetary bodies, without Ascendant, Midheaven, Chiron, hypothetical points or sign/element requirements.

Read the aspect pattern guide for definitions, arithmetic examples and date-only limitations.