Lord of the Turn Calculator

Calculate the Lord of the Turn, profection and Lord of the Year based on Abu Ma'shar's technique.

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Age
Lord of the Turn
Lord of the Turn
Lord of the Year (Profection)
Profected Sign
Profection House
All Years Table
Great Turn
Turning of the Soul
Great Year
Both
Current Age
Age Year Lord of the Turn Profected Sign House Lord of the Year Special
Planets and Their Rulerships
MarsAries ♈ & Scorpio ♏
VenusTaurus ♉ & Libra ♎
MercuryGemini ♊ & Virgo ♍
MoonCancer ♋
SunLeo ♌
JupiterSagittarius ♐ & Pisces ♓
SaturnCapricorn ♑ & Aquarius ♒

Chaldean Order (7 Planet Cycle)

Saturn ☤ → Jupiter ♃ → Mars ♂ → Sun ☉ → Venus ♀ → Mercury ☿ → Moon ☽ → (Saturn again...)

What is the Lord of the Turn?

The Lord of the Turn (Latin: Dominus Triplicitatis, Arabic: Sahib al-Tahwil) is one of the annual prediction techniques developed by Abu Ma'shar al-Balkhi (787-886). This method assigns a ruling planet for each year based on the planetary hour at the moment of birth.

Calculation Method

In your birth year (age 0), the Lord of the Turn is your birth hour planet. Each subsequent year, the next planet in the Chaldean order becomes the Lord of the Turn. This sequence descends from Saturn to the Moon and then returns to Saturn. Thus, a complete cycle is completed every 7 years.

Profection (Lord of the Year)

In the profection technique, each year advances one sign starting from the rising sign. A cycle is completed every 12 years. The traditional ruler of that year's profected sign is called the Lord of the Year.

Special Years

Chaldean Order

The Chaldean order is a system in which the planets were arranged according to their distance from Earth in antiquity: Saturn (farthest), Jupiter, Mars, Sun, Venus, Mercury, Moon (nearest). This sequence also forms the basis of the planetary hours and planetary days system.