← Encyclopedia of Astrology · lesson 132/235
Sect
Sect is the oldest and simplest division in a chart: is it a day chart or a night chart? If the Sun was above the horizon at birth — in the top half of the wheel, between the Ascendant and the Descendant through the Midheaven — it is a day chart; if below, a night chart. If you were born in daylight, you have a day chart.
The word translates the Greek hairesis, a "faction" or "party". From that one fact the Hellenistic astrologers divided the planets into two teams, and asked which team was in charge.
The two teams
| Day sect (diurnal) | Night sect (nocturnal) |
|---|---|
| Sun | Moon |
| Jupiter | Venus |
| Saturn | Mars |
Each team has a light, a benefic and a malefic. Mercury belongs to neither and joins whichever side it is closest to: a morning star Mercury, rising before the Sun, counts as diurnal; an evening star Mercury, setting after it, as nocturnal.
The logic is one of balance. Saturn, cold and dry, is placed with the warm Sun and the day; Mars, hot and dry, with the cool Moon and the night. Each malefic is tempered by the time that suits it least.
What changes with sect
- The sect light. In a day chart the Sun is the chart's chief reference point; in a night chart the Moon. Several Hellenistic techniques start from the sect light, and many traditional astrologers give it the first word on the life as a whole.
- The benefic of sect — Jupiter by day, Venus by night — is read as the chart's most reliably helpful planet. The other benefic still helps, with less reach.
- The malefic of sect — Saturn by day, Mars by night — is difficult but moderated: it is read as doing its job, demanding but constructive.
- The malefic contrary to sect — Mars by day, Saturn by night — is traditionally the chart's harshest actor, and the placement many traditional astrologers read most carefully. Hellenistic writers often looked to it for a life's sharpest difficulties; modern practitioners tend to read it as the area that asks the most of a person, not as a sentence.
- Other calculations. The triplicity rulers alternate by sect, and the Lots of Fortune and Spirit reverse their formula between day and night charts, so the Part of Fortune itself depends on sect.
A second layer: halb and hayz
Later tradition added finer conditions. Medieval writers said a planet is in halb when it is of the chart's sect and on the same side of the horizon as the Sun (above it by day, below it at night). They then added the sign's gender — a diurnal, masculine planet in a masculine sign, a nocturnal, feminine one in a feminine sign — and called the full condition hayz. Lilly counted hayz among the accidental dignities, though as Luís Ribeiro notes, it sits closer to the essential dignities in spirit, since it concerns the planet's nature rather than its circumstances.
Where schools differ
Sect was central to Hellenistic astrology, survived into the medieval tradition, and had largely faded from popular astrology by the twentieth century. It was revived by the translation projects of the 1990s and is now standard among traditional astrologers. Many modern psychological astrologers do not use it at all, and some apply the light-and-team idea without the benefic/malefic grading.
There is also a question at the edge. Near sunrise or sunset the call is finely balanced: the Sun's disc is half a degree wide and refraction lifts it, and some astrologers treat a Sun a few degrees below the Ascendant or Descendant as still belonging to the day. A birth within minutes of sunrise or sunset is best read with sect held lightly.
In a reading here
The structured report on a birth chart here states the chart's sect: whether it is a day or night chart, the sect light, which planets are of sect and contrary to it, the benefic and malefic of sect, and which side Mercury is on. When the Sun is within about three degrees of the horizon, it flags the sect as borderline. The triplicity rulers it lists under Essential Dignities are the ones that sect implies.