A 9th-century astrologer in Baghdad, Abu Ma’shar, once refused to cast a horoscope for a caliph until he knew which lunar mansion the moon occupied that night. He did not ask for the phase alone. He asked for the station. That distinction mattered because in Islamic astrology, the moon’s nightly dwelling determines whether an action begun under it will flourish or fail.
The mansions of the moon, or manazil al-qamar (منازل القمر), are 28 fixed segments of the ecliptic that the moon transits roughly one per night. Each mansion carries its own name, fixed star associations, elemental quality, and spiritual influence. In Islamic astrology, these stations are not astronomical curiosities. They are the backbone of electional timing, talismanic magic, and agricultural planning.
What the Mansions Actually Are
The moon completes its orbit around the earth in approximately 27.3 days. To track its progress, Arab astronomers divided the ecliptic into 28 equal sections of roughly 12 degrees and 51 minutes of arc each. The moon spends one night in each mansion, hence the name manzil (plural manazil), meaning “station” or “lodging place.”
These 28 stations are not arbitrary. They are anchored to specific fixed stars or asterisms that the moon passes near. For example, the first mansion, Al-Sharatain (الشرطان), corresponds to the two stars of Aries’ horns. The second, Al-Batain (البطين), is the belly of Aries. Each name describes a visible feature of the sky.
The Quran itself references them in Surah 36:39: “And the moon, We have determined for it mansions, until it returns like an old palm branch.” That verse gave the mansions a scriptural foundation that later scholars built upon.
Where Did the 28 Mansions Come From?
The mansions predate Islam. Pre-Islamic Arab tribes used them for navigation, weather prediction, and seasonal timing. The names are older than the Quran, drawn from the Bedouin star lore that divided the sky into anwa (rising stars) and manazil (lunar stations). When the moon entered a particular mansion, it marked the beginning of a specific weather period or agricultural task.
With the rise of Islam, these folk traditions were systematized. The 8th-century astronomer Al-Fazari translated Indian astronomical texts that introduced the concept of the nakshatras (27 or 28 lunar stations). Arab scholars recognized the parallel and merged their own 28-mansion system with the Indian one, adding fixed star coordinates and refining the boundaries.
The key figure is Abu Ma’shar al-Balkhi (787–886 CE), known in the West as Albumasar. His Great Introduction to the Science of Astrology devoted extensive chapters to the lunar mansions, listing their influences for every kind of election. He wrote that the mansions were the “foundation of all astrological judgments concerning beginnings.”
Al-Biruni (973–1048 CE) later codified the mansions in his Book of Instruction in the Elements of the Art of Astrology. He gave precise coordinates for each mansion, listed the fixed stars within them, and described their natures (hot, cold, dry, wet) and their effects on human affairs. His table became the standard reference for later practitioners.
The Picatrix (originally Ghayat al-Hakim, “The Goal of the Wise”), a 10th-century Arabic grimoire translated into Latin, devoted its second book to the lunar mansions. It assigned each mansion a specific talisman, incense, and planetary hour for working magic. That text carried the mansions into European occultism, where they influenced figures like Cornelius Agrippa and John Dee.
The 28 mansions are not neutral. Each has a temperament (hot/cold/moist/dry), a set of fixed stars, and a list of activities it favors or forbids. The names themselves encode meaning.
Al-Sharatain (the two signs) is hot and dry. It governs beginnings, travel, and marriage. A journey started under it was considered safe. Al-Thurayya (the Pleiades) is moist and cold. It favors planting and building but forbids travel by sea. Al-Dabaran (the follower, Aldebaran) is hot and dry. It is martial in nature, good for war and conflict but dangerous for love.
The mansions are also associated with spirits. In the Picatrix, each mansion has an angel and a jinn that can be invoked. For example, the 14th mansion, Al-Simak (Spica), is ruled by the angel Mikha’il and is used for talismans of prosperity and healing. The 24th mansion, Al-Sauda (the fortunate one), is linked to the angel Jibril and governs success in legal matters.
These correspondences were not abstract. A practitioner would determine the mansion by calculating the moon’s ecliptic longitude at the moment of an intended action. Then they would consult the tables to see if that mansion supported or opposed the goal.
Electional astrology was the primary use. A farmer wanting to plant wheat would wait for a moist mansion like Al-Thurayya or Al-Haq’a (the crown). A merchant leaving on a caravan would choose a hot, dry mansion like Al-Sharatain or Al-Dabaran for speed and protection. A marriage was best begun under Al-Zubra (the mane of Leo), a mansion of love and harmony.
Talismanic magic followed the same logic. The Picatrix instructs the magician to inscribe a talisman for love when the moon is in Al-Zubra, using specific metals and incenses. For protection from enemies, the 16th mansion Al-Zubana (the claws of Scorpio) was used, with a talisman of iron and myrrh.
The method required precision. The practitioner needed an ephemeris or a set of tables to find the moon’s longitude at the exact hour. Al-Biruni provided a simple rule: the moon’s daily motion is about 13 degrees, so by counting days from the new moon, one could estimate the mansion. But for exact work, calculation was necessary.
Agricultural timing was widespread. In rural Islamic communities, farmers planted and harvested according to the mansions well into the 19th century. The 7th mansion, Al-Dhira (the forearm), was considered good for planting vines. The 18th, Al-Qalb (the heart of Scorpio), was avoided for any planting because it was considered barren.
The Islamic system is one of several. The Indian nakshatras are 27 (sometimes 28) stations that share many names and fixed stars with the manazil. The Chinese xiu (宿) are also 28, used for both lunar and sidereal timekeeping. The similarity is not coincidence. All three likely descend from a common Babylonian or pre-Babylonian system that spread along the Silk Road.
The difference lies in application. Indian nakshatras are primarily used in natal astrology and marriage compatibility. Chinese xiu are tied to the calendar and divination. Islamic manazil are overwhelmingly electional and talismanic. The Islamic system also preserved the pre-Islamic Arab names and associations, giving it a distinct flavor.
Medieval European astrologers adopted the mansions through Latin translations of Arabic texts. They called them the “mansions of the moon” and used them for the same purposes. But the European lists often corrupted the Arabic names and shifted the boundaries. A modern practitioner working with the Western tradition should verify against the original Arabic sources.
What People Get Wrong
The most common error is treating the mansions as identical to the Western lunar mansions. They are similar but not the same. The Arabic system uses sidereal positions (fixed stars), while many Western versions use tropical positions (based on equinoxes). The difference is about 23 degrees today, meaning the moon in a given mansion in one system will be in a different mansion in the other.
Another mistake is assuming the mansions are purely Islamic. They are pre-Islamic in origin, absorbed and refined by Islamic scholars. The Quranic reference gave them legitimacy, but the system itself is older.
Some modern occultists treat the mansions as a simple 28-day cycle, ignoring the fixed star coordinates. That misses the point. The mansions are not equal divisions of time. They are tied to specific stars. If the moon passes near Aldebaran, it is in Al-Dabaran, regardless of how many days have passed since the new moon.
Finally, the mansions are sometimes dismissed as superstition. But for the scholars who used them, they were a precise tool grounded in observation. Al-Biruni tested the mansions against weather patterns and crop yields. He did not take them on faith.
FAQ
How many mansions of the moon are there in Islamic astrology?
There are 28 mansions, each corresponding to roughly one night of the moon’s orbit.
How do I find which mansion the moon is in today?
You need the moon’s ecliptic longitude. Many online ephemerides provide it. Then compare it to the fixed star boundaries given by Al-Biruni or a modern table of the manazil.
Can I use the mansions for modern astrology?
Yes, but you must use sidereal coordinates (not tropical). The mansions are tied to fixed stars, so the tropical zodiac will misplace them.
Are the mansions mentioned in the Quran?
Yes, Surah 36:39 says “And the moon, We have determined for it mansions.” That verse is the scriptural basis for the system.
The 28 mansions of the moon are not a relic. They are a working system that connects the sky to the ground, the hour of an action to its outcome. For the practitioner who learns their names and natures, they offer a precise language for timing what matters. To go deeper, explore our guide to lunar mansions in practice and the glossary of moon magic symbols. For a step-by-step method of calculating and applying the mansions, see how to use the lunar mansions in electional astrology.