The Behenian Fixed Stars

The stars that do not wander

The old astronomers divided the sky into two populations. The planets — the "wanderers" — drift against the background of the heavens, each at its own pace. Everything else holds formation: the fixed stars, al-kawākib al-thābita, which keep their places relative to one another year after year, century after century. They are the stage on which the planetary drama is played — and in the classical tradition, some of them are actors in their own right.

The scholarly record of these stars runs deep. Ptolemy catalogued over a thousand of them with their longitudes and magnitudes, and his Tetrabiblos set out their planetary temperaments. Some eight centuries later, ʿAbd al-Raḥmān al-Ṣūfī re-observed the whole catalog for his Book of Fixed Stars — a landmark of the astronomy of the Islamic world, and the source of many star names still in use today. Between Ptolemy and al-Ṣūfī runs the backbone of Arabic astrology's stellar lore: which stars are of the nature of which planets, which bring fortune, and which counsel caution.

The same stars travelled in brass. The astrolabe star chart is the rete — in Arabic al-ʿankabūt, "the spider" — a pierced plate that turns above a map of the local sky, its pointers marking bright fixed stars such as Aldebaran, Regulus and Vega. Turning the rete until a star's pointer sat on the altitude just measured gave Arabic astronomers and astrologers the hour and the degree rising in the east.

Agrippa's fifteen

Within that larger population, the medieval tradition singled out a shortlist of stars held to be especially potent — the Behenian fixed stars. Cornelius Agrippa records the canonical fifteen in his Three Books of Occult Philosophy, assigning each star its own character, its gemstone, its plant, and its written seal — the working kit of the talisman-maker. Among the fifteen are Algol, the Pleiades, Aldebaran, Capella, Sirius, Procyon, Regulus, Spica, Arcturus, Antares, Vega, and Deneb Algedi.

Spica, the wheat-ear of the Virgin, is among the most fortunate points in the whole sky, a giver of gifts and protection.

The Behenian stars were not merely observed but used. Following methods the Latin world learned from the Picatrix and the Arabic corpus behind it, the practitioner watched for the moments when one of these stars rose or culminated — the windows in which its influence was held to be strongest, and in which a talisman under its patronage was traditionally made.

Five stars worth knowing

Regulus — Qalb al-Asad, the Heart of the Lion — is the star of kingship, honors, and public rank, long counted among the royal stars. Spica, the wheat-ear of the Virgin, is among the most fortunate points in the whole sky, a giver of gifts and protection. Algol — Raʾs al-Ghūl, the Demon's Head — is the tradition's most cautionary star, the one the manuals treat with the greatest care. Antares — Qalb al-ʿAqrab, the Heart of the Scorpion — burns with martial intensity, a star of crisis and courage. And Fomalhaut, the mouth of the Southern Fish, closes the circle of the four royal stars with Regulus, Antares, and Aldebaran.

How Canopy tracks the stars

Canopy carries thirty-five stars of the classical tradition — the Behenian fifteen and twenty more drawn from the same corpus — each with its Arabic name, its planetary nature, and a reading from the classical sources, and each Behenian star with the gemstone, herb and sigil the tradition gives it. The app places them against two skies at once: your natal chart, where a star conjoined to a planet or angle at birth colors it for life, and the current sky, where today's contacts are read alongside the planetary hours and the Moon's mansion. Given your date, time and place of birth, it works as a birthday star calculator, showing which of the thirty-five stood within three degrees of your planets, Ascendant or Midheaven when you were born.

Canopy's talismanic timing follows the older practice directly: it identifies the windows when a significant star rises or culminates, after the methods of the Picatrix and al-Ṣūfī, so that timing a beginning to a star is a matter of opening the app rather than working through tables.

Zodiac gifts from the planets and the stars

Most astrology gifts begin and end with the Sun sign. The older tradition offers something more particular. It read a sign through its ruling planet, gave each planet a metal, its stones and a color, and gave each Behenian star a gemstone and an herb of its own. In a chart a star is read by conjunction, so the stars named below matter for those whose planets or angles stand near them. A gift chosen this way follows a correspondence; it makes no promise.

• Aries gifts follow Mars: iron, the color red, and garnet, the stone Canopy's tables give the planet. No Behenian star stands in tropical Aries.
• Gifts for Cancerians follow the Moon: silver, white and pearl. For the best gifts for Cancers, look at the chart as well as the sign: two Behenian stars stand in tropical Cancer, Sirius near 14° and Procyon near 26°, and Canopy gives Sirius beryl and Procyon agate.
• Gifts for Sagittarians follow Jupiter: tin (the chief metal of pewter), blue and purple, and sapphire. Antares, the Heart of the Scorpion, stands near 10° of tropical Sagittarius; its gemstone is amethyst.
• Capricorn zodiac gifts follow Saturn: black and dark shades, and onyx. Saturn's metal is lead, better left to the history books than wrapped as a present. Vega, the Falling Eagle, stands a little past 15° of tropical Capricorn; its gemstone is chrysolite, the stone now sold as peridot.

For a choice that fits the person rather than the Sun sign, follow the tradition's own way of finding the planet that speaks for a whole chart: the almuten, the lord of the nativity, weighed from five places. Canopy names it in the natal chart and, among its remedies, lists that planet's metal, gemstone, color and incense and any Behenian stars of its nature.

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