Born Dec 2 – Dec 11
Sagittarius · second decan · The arrow that actually wants to hit
Your decan
The second decan of Sagittarius takes Jupiter's big-sky optimism and loads it with Mars urgency. You're not just chasing the horizon — you're hunting it. More focused, more combative, and more likely to actually finish the quest than the other two Sagittarius decans, because Mars needs a target, not just a direction.
What sets your third apart
Mars, by way of Aries, gives this decan an edge the other Sagittarius thirds don't carry. Your opinions land like challenges, your enthusiasm has a competitive undercurrent, and your need for freedom doubles as a need to prove something. Where plain Sagittarius philosophizes, you crusade — which is galvanizing until the cause starts serving the fight instead of the truth.
Your gift
Conviction that moves — you don't just believe something, you go to the mat for it.
Your watch-out
Mars turns every idea into a battle; you defend the argument long after the point was won.
The exact degrees, and who rules them
A decan is a third of a sign: ten degrees of zodiac, not a mood. Yours is Sagittarius 10°00′ to 19°59′ — the second ten degrees the Sun crosses on its way through Sagittarius, roughly Dec 2 – Dec 11 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) | Jupiter | The baseline Sagittarius everyone shares |
| Chaldean face | Moon | instinct, memory and care |
| Triplicity decanate | Mars | drive and confrontation |
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 (Mars) without saying so; the older Sagittarius face here is Moon.
Read either way, the point is the same: urgency — this third of the sign starts sooner and argues quicker than the other two.
How it actually shows up
The decan is a modifier, not a second sign. It shifts emphasis inside Sagittarius rather than replacing it — so everything true of Sagittarius is still true of you, with drive and confrontation turned up. Three places people notice it:
- Under pressure. A Sagittarius sun typically leaves the room, literally or not. In this third that reaction takes its colour from Mars — drive and confrontation is what the reaction ends up being about.
- In how you start things. The second decan sits in the middle of the sign, the most settled and least extreme of the three.
- Next to the other two. Compare it directly: the first decan (Nov 22 – Dec 1) runs on Jupiter, and the third decan (Dec 12 – Dec 21) runs on Sun. 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.