Born Mar 31 – Apr 9
Aries · second decan · The one who charges and commands
Your decan
The second decan of Aries is Mars fire with the Sun burning at the center of it. You're not just fast and blunt — you're aware of being fast and blunt, and you want an audience for it. There's a performance quality here the first decan doesn't bother with; you move with authority, not just impulse.
What sets your third apart
The Sun, by way of Leo, hands this decan something raw Aries rarely carries: ego with a capital E and a genuine need to be seen as exceptional, not just effective. It sharpens your drive into ambition that's as much about recognition as results. You're bolder and more magnetic than the other Aries decans, but you also take a challenge to your leadership personally in a way that can turn a small slight into a full production.
Your gift
The nerve to go first plus the presence to make everyone watch — you lead and you land.
Your watch-out
You're chasing glory as much as the goal; a bruised ego can hijack the whole mission.
The exact degrees, and who rules them
A decan is a third of a sign: ten degrees of zodiac, not a mood. Yours is Aries 10°00′ to 19°59′ — the second ten degrees the Sun crosses on its way through Aries, roughly Mar 31 – Apr 9 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) | Mars | The baseline Aries everyone shares |
| Chaldean face | Sun | identity and vitality |
| Triplicity decanate | Sun | identity and vitality |
Both surviving decan systems agree here, which is not the usual case — the Chaldean faces and the triplicity decanates both hand this stretch to Sun. When they agree, the sub-flavour is about as well attested as decan theory gets.
Read either way, the point is the same: visibility — this third wants the thing it does to be recognisably its own.
How it actually shows up
The decan is a modifier, not a second sign. It shifts emphasis inside Aries rather than replacing it — so everything true of Aries is still true of you, with identity and vitality turned up. Three places people notice it:
- Under pressure. A Aries sun typically escalates — volume up, patience gone. In this third that reaction takes its colour from Sun — identity and vitality 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 (Mar 21 – Mar 30) runs on Mars, and the third decan (Apr 10 – Apr 19) runs on Jupiter. 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.