Mansions of the Moon

Definition

The Mansions of the Moon are twenty-eight divisions of the ecliptic — the Moon's path through the sky — each roughly 12°51' wide, one twenty-eighth of the zodiac. They track the Moon's daily progress through its roughly 27.3-day sidereal cycle, the time it takes to return to the same star. In their earliest forms each mansion is anchored to particular fixed stars, and each carries a list of favored and unfavored undertakings used in electional, talismanic, and weather astrology. The Arabic name manazil al-qamar, "resting places of the Moon," gives the term used in medieval and Renaissance Europe.

In Tradition

In Arabic, medieval Latin, and Renaissance magical practice, the mansion system is a leading lunar timing factor for electional and talismanic work — choosing the right moment, and making charms. Each mansion carries a fixed character, favored for some undertakings and unfavored for others. Warnock and the Picatrix tradition build the mansions into the foundation of Renaissance lunar talismanic magic, where a talisman's consecration is timed to a particular mansion and to the rising or setting of its linked fixed star.

In Practice

The astrologer finds the Moon's tropical longitude — its position along the seasonal zodiac — at the moment of the chart, and identifies which mansion holds it. Modern practice usually uses the standardized division of 12.86 degrees beginning at 0° Aries; some traditional sources keep the original boundaries anchored to fixed stars. Mansion-by-mansion tables, such as those preserved in Picatrix Book IV and adapted in Agrippa's Three Books of Occult Philosophy, list recommended actions for each mansion: travel, marriage, planting, demolition, talisman-making, medical procedures. Electional work picks a mansion that suits the topic and times the chart for a moment when the Moon is in it, ideally with the linked fixed star above the horizon. In horary, the Moon moving into a new mansion can serve as a timing trigger.

Historical Origin

The 28-fold lunar division is attested across antiquity in several traditions whose order of precedence is still debated. The Arabic manazil body of work is systematized in Al-Biruni's Kitab al-Tafhim (c. 1029) and passed into Latin Europe through the Picatrix translation completed at the court of Alfonso the Wise (1256) and through Agrippa's Three Books of Occult Philosophy (1533). Warnock's 2019 study gathers the medieval Arabic and Latin sources into a working modern reference.

Etymology

Origin: Latin. Meaning: From mansio, "a staying, a dwelling place," from manere, "to remain." Arabic: manazil al-qamar, "resting places of the Moon.".

Further Reading

• Christopher Warnock, The Mansions of the Moon
• Al-Biruni, Kitab al-Tafhim
• John Michael Greer & Christopher Warnock, Picatrix (Ghayat al-Hakim)