Born Aug 23 – Sep 1
Virgo · first decan · Virgo, precision-engineered
Your decan
The first decan of Virgo is the sign at its most concentrated — double Mercury, all analysis and exacting standards. You catch what everyone else misses, you fix what isn't quite right, and you hold yourself to a bar nobody else can even see.
What sets your third apart
With Mercury ruling both the sign and this decan, there's no second planet to ground the mental engine or quiet the inner critic. It makes you the sharpest, most genuinely useful Virgo — and the most prone to anxiety, overthinking, and 'not yet perfect' hardening into 'never done.'
Your gift
A mind that catches the error nobody else saw, applied to everything you touch.
Your watch-out
The critic has no off-switch; you call relentless self-correction 'standards.'
The exact degrees, and who rules them
A decan is a third of a sign: ten degrees of zodiac, not a mood. Yours is Virgo 0°00′ to 9°59′ — the first ten degrees the Sun crosses on its way through Virgo, roughly Aug 23 – Sep 1 in most years. Sun-sign dates shift by up to a day between years because the tropical year is not a whole number of days, so if you were born within about 24 hours of either end, run the actual chart rather than trusting a date table.
| Tradition | Ruler | What it governs |
|---|---|---|
| Sign ruler (all three decans) | Mercury | The baseline Virgo everyone shares |
| Chaldean face | Sun | identity and vitality |
| Triplicity decanate | Mercury | mind, language and exchange |
The two systems disagree, which is normal and worth knowing: the Chaldean faces run the seven classical planets in speed order straight through all 36 decans without regard to sign boundaries, while the triplicity decanates give the first third of every sign to its own ruler and then step through the other signs of the same element. Most popular astrology quotes the triplicity ruler (Mercury) without saying so; the older Virgo face here is Sun.
Read either way, the point is the same: commentary — this third narrates itself, and thinks a feeling before it feels it.
How it actually shows up
The decan is a modifier, not a second sign. It shifts emphasis inside Virgo rather than replacing it — so everything true of Virgo is still true of you, with mind, language and exchange turned up. Three places people notice it:
- Under pressure. A Virgo sun typically critiques whatever is nearest. In this third that reaction takes its colour from Mercury — mind, language and exchange is what the reaction ends up being about.
- In how you start things. The first decan sits at the front of the sign, where its qualities are least diluted and most raw.
- Next to the other two. Compare it directly: the second decan (Sep 2 – Sep 11) runs on Saturn, and the third decan (Sep 12 – Sep 22) runs on Venus. Same sign, three noticeably different settings.
What it is not: a personality test, and not something to weigh against your Moon or rising, both of which say considerably more about you than a third of your sun sign does. The big three is where to look next.
Your decan is a hint. Your chart is the answer.
The decan refines your sun sign — but your moon, rising and every planet are where the real story lives. Run your full birth chart, free.
Degree ranges are exact by definition (each decan is ten degrees of zodiac); the calendar dates shift by up to a day between years. Rulerships are the classical Chaldean face and triplicity decanate assignments, both stated above. Written and reviewed by the Zodiux editorial team · Last reviewed · How Zodiux computes your chart · Editorial standards · For reflection and entertainment, not advice.