Quick answer: The Behenian fixed stars are a set of fifteen stars that medieval astrology singled out as especially powerful, used in astrological magic and the making of talismans. They were discussed for the West most influentially by Heinrich Cornelius Agrippa in his De Occulta Philosophia (1533), where each star is given a planetary nature, a gemstone, a plant, and a magical sigil. The fifteen include famous names like Aldebaran, Algol, Regulus, Spica, Antares, Sirius, and Vega.
Among the thousands of fixed stars, medieval astrologers treated a small handful as different in kind, not just brighter than the rest. These were the Behenian stars: fifteen points in the sky thought to channel a concentrated planetary power. They were the stars a magician would actually work with, sitting where astronomy, astrology, and the older art of talisman making meet.
What "Behenian" Means
The word Behenian comes from an Arabic root, bahman, usually translated as root or origin. That name is a clue to the tradition's history. These stars reached medieval Europe through the Arabic and Hermetic sources, the same channel that carried much of classical astronomy and astrology westward before it entered Latin learning.
So the label is not decorative. It marks a star as one of the "root" or foundational stars, a source from which a particular virtue or influence was thought to flow. The fifteen were not chosen at random. They are mostly the brightest, most recognisable stars in the sky, the ones any naked-eye observer would already know by sight.
Agrippa and De Occulta Philosophia (1533)
The list as the West remembers it was set out most influentially by Heinrich Cornelius Agrippa in his De Occulta Philosophia, printed in full in 1533. Agrippa was not inventing the idea. He was gathering and organising an older inheritance that he himself credited to Hermes Trismegistus. His book, though, became the standard reference that later astrologers and magicians returned to.
For each of the fifteen stars Agrippa recorded a small cluster of correspondences:
- a planetary nature, the planet or planets whose quality the star shares
- an associated gemstone
- an associated plant or herb
- a magical sigil or seal, a drawn figure used in making a talisman
The idea behind the system is correspondence: the belief that a stone, a plant, a star, and a planet can all share one underlying nature. Bringing them together under the right sky was thought to draw that nature down into a physical object, the talisman. This is the talismanic tradition, and the Behenian stars were its working toolkit.
The Fifteen Stars
The Behenian set gathers fifteen stars spread around the sky. The exact names and descriptions vary slightly between sources, but the core list, as Agrippa hands it down, runs:
- Algol, the head of Medusa in Perseus
- the Pleiades, the small cluster in Taurus
- Aldebaran, the eye of the Bull, in Taurus
- Capella, the bright star of the Charioteer
- Sirius, the Dog Star, the brightest in the night sky
- Procyon, the Little Dog
- Regulus, the heart of the Lion
- Alkaid, the star at the tail of the Great Bear
- Algorab, in the wing of the Crow (Corvus)
- Spica, the ear of grain in Virgo
- Arcturus, the bright star of the Herdsman
- Alphecca, the jewel of the Northern Crown
- Antares, the heart of the Scorpion
- Vega, the falling Eagle in Lyra
- Deneb Algedi, the tail of the Sea Goat in Capricorn
Read down that list and you will see how wide a span of sky it covers. It reaches well above and below the zodiac, taking in stars from Taurus and Perseus round to Capricorn, with Alkaid in the Great Bear sitting far to the north of the zodiac belt.
A Planet for Each Star
Each Behenian star was assigned the nature of one or two planets. This follows the older tradition, in which every fixed star was read through a planetary lens. A few examples show the pattern:
- Aldebaran carries the nature of Mars
- Regulus is given to Jupiter and Mars
- Spica is read as Venus and Mercury
The point of these pairings was practical. If you knew a star shared the nature of Venus and Mercury, you also knew which planetary hour, metal, and symbols to align with it when you wanted to work with its virtue. The planetary attribution tied the star into the wider system of correspondences, rather than leaving it as an isolated point of light.
The Behenian Stars and AstroAk
This is the same fixed-star tradition that stands behind AstroAk's fixed-star readings. We cover several of the Behenian fifteen in their own right, including Aldebaran, Algol, Regulus, Spica, Antares, Sirius, and Vega, tracing the lore and the astrology of each. To see where these bright stars actually fall against the planets in your own sky, cast your free birth chart and read the fixed stars alongside it.
One caveat is worth keeping in view. What is described here is the historical magical and talismanic tradition, offered as educational history rather than a how-to. The exact membership and naming of the list shift a little from source to source. Agrippa's 1533 version is the key reference point, not a single fixed canon handed down unchanged.
Frequently Asked Questions
What are the Behenian fixed stars?
They are a set of fifteen stars that medieval astrology singled out as especially powerful, used in astrological magic and in making talismans. The name comes from an Arabic root meaning root or origin, reflecting their transmission through the Arabic and Hermetic tradition.
Who created the list of Behenian stars?
The list was passed to the West most influentially by Heinrich Cornelius Agrippa in his De Occulta Philosophia, printed in 1533. He gathered an older inheritance, which he credited to Hermes Trismegistus. For each star he recorded a planetary nature, a gemstone, a plant, and a magical sigil, though the exact list varies slightly between sources.
Which stars are Behenian?
The fifteen are Algol, the Pleiades, Aldebaran, Capella, Sirius, Procyon, Regulus, Alkaid, Algorab, Spica, Arcturus, Alphecca, Antares, Vega, and Deneb Algedi. Each was linked to one or two planets, for example Aldebaran to Mars and Regulus to Jupiter and Mars.
