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The 36 Faces

Decans

Each zodiac sign is divided into three 10-degree segments called decans, each with its own planetary ruler. Compare three traditional systems.

Chaldean (Traditional) Triplicity (Ptolemaic) Egyptian (36 Faces)

Each sign's 3 decans are ruled by the 3 signs of the same element, in order. For example, Aries (Fire): 1st decan = Aries (Mars), 2nd = Leo (Sun), 3rd = Sagittarius (Jupiter).

All Signs

♊ Gemini

Decan 1 0° – 9°

Ruler

Mercury

Gemini
Decan 2 10° – 19°

Ruler

Venus

Libra
Decan 3 20° – 29°

Ruler

Saturn

Aquarius

References

Chaldean: Traditional planetary order (Firmicus Maternus, Ptolemy). Triplicity: Ptolemaic system. Egyptian: 36 Faces tradition (Austin Coppock).

About This Tool
What it does

The 10° sub-divisions of each sign and their rulers.

Who it’s for

For those who want to understand themselves and their personal chart in depth.

What you need

Date, time, place

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