Sect

What it is

Sect is the first cut a classical astrologer makes across a chart. Before any planet is weighed for dignity, the figure is sorted into one of two kinds: a day chart or a night chart. The test is plain. If the Sun stood above the horizon at the moment of birth, the chart is diurnal; if the Sun was below the horizon, it is nocturnal. Everything that follows is read in that light or in that dark.

The same division runs through the planets themselves. Each belongs to a sect by its own nature. The diurnal planets are the Sun, Jupiter, and Saturn, the bodies of the light and the day. The nocturnal planets are the Moon, Venus, and Mars, the bodies of the dark and the night. Mercury alone belongs to neither by birth; it takes the sect of whichever side of the Sun it rises on.

A planet whose sect agrees with the chart is said to be in sect, and it works at its most settled and characteristic. A planet whose sect is contrary to the chart is out of sect, and it works at its most awkward. That one fact tints the whole reading, which is why sect is settled before dignity is ever counted.

How the tradition computes it

Establish the chart's sect first. Find the Sun. If it sits in a house above the horizon, the birth is a day birth; if below, a night birth. Ptolemy treats this diurnal and nocturnal division as the governing frame of the whole nativity in Tetrabiblos I.7.

Then read each planet against the two teams:

Mercury's rule deserves its own line. When Mercury rises before the Sun as a morning star, it is oriental and takes the diurnal sect; when it sets after the Sun as an evening star, it is occidental and takes the nocturnal sect. What decides the phase is the sign of its elongation from the Sun, so the rule holds even when Mercury is combust and lost in the beams. Nearness to the Sun hides the planet from the eye; it does not undo which side of the Sun it stands on.

Two further terms follow at once. The sect light is the leading luminary of the chart: the Sun by day, the Moon by night. It is the principal light the figure is built around. And a planet found in its own sect earns a small mark of accidental strength on top of its other testimonies:

in sect = +1

A later refinement, hayz, tightens the condition further, asking a planet to agree with the chart not only in sect but in hemisphere and in the gender of its sign. The app records hayz as doctrine but does not fold it into the score; the +1 is for sect alone.

What it signifies

Sect decides how a planet's nature actually lands. The benefics and malefics keep their fixed qualities, hot or cold, moist or dry, helpful or harmful, but sect governs whether those qualities come out tempered or raw. A benefic in sect, Jupiter by day or Venus by night, gives its good more fully and cleanly, its warmth and moisture well placed. A malefic in sect, Saturn by day or Mars by night, does less harm than it otherwise would; its cold or its heat is disciplined and turned toward some use.

The reverse is the danger. A malefic out of sect is the hardest single planet in the figure. Contrary to the light of the chart, its destructive quality runs unchecked, and it is the first body an astrologer looks to when reading where the life will be pressed. This is why sect is taken before dignity: a planet may be strong by sign and still, out of sect, deliver that strength harshly. Sect sets the tone; dignity then modifies it.

Where the app departs

Seen in a real chart

Marcus Aurelius was born shortly before dawn, with the Sun still below the horizon, so the chart is nocturnal. The sect light is therefore the Moon, which the reading places in Capricorn in the 11th house. It is the Moon, not the Sun, that leads this figure.

Now the two malefics, read by sect. Mars is a nocturnal planet in a night chart, so it is in sect. Even though Mars here is otherwise weak, combust and in its detriment in Taurus in the 3rd house, being in sect still earns it the +1. Its accidental tally reads cadent third house minus 2, combust minus 5, in sect plus 1, for minus 6. Sect steadies the lesser malefic even as everything else pulls it down.

Saturn is the opposite case. It is a diurnal planet in a night chart, so it is out of sect, contrary to the whole figure. It sits in Cancer, the sign of its detriment, in the 5th house, an essential score of minus 5, and from there it opposes the sect light itself, the Moon. This is the planet to read first: an out-of-sect, debilitated Saturn, throwing its cold weight against the leading light of a night chart. Undignified by sign and unhelped by sect, it is the hardest planet in the nativity, exactly the reading sect is meant to hand you before any point is counted.

How to read it in the app

The reading states the chart's sect at the head of the natal report, day or night, and names the sect light. Wherever a planet's accidental dignity is tallied, it is marked in sect or out of sect and the +1 is shown among the modifiers, so you can see it steadying an in-sect malefic or missing from an out-of-sect one. The citation footnote beside the sect line resolves to Tetrabiblos I.7.

Sources