Aries First Decan
The Aries first decan (Mar 21–30) is double-Mars — the purest, most fearless burst of Aries: raw initiative and unfiltered drive.
The first decan of Aries runs from roughly March 21 to March 30, covering the first 10° of the sign. Aries is ruled by Mars, and the first decan is ruled by Mars again — so this is Aries at its most concentrated: pioneering, competitive, and impossible to slow down. People born here embody the spark of the whole zodiac, the impulse to begin.
Double-Mars energy makes this decan the most assertive slice of an already assertive sign. Courage is the default setting; hesitation is foreign. These are the natural starters and first-movers who would rather act and adjust than wait and plan. The challenge is patience — the same fire that launches projects can burn out before they finish.
With a Sun, Moon, or rising in the opening degrees of Aries, you get the warrior who goes first and asks questions later — the rawest Aries there is, all start and no brakes.
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Frequently asked questions about Aries First Decan
What is the Aries First Decan in astrology?
The Aries first decan (Mar 21–30) is double-Mars — the purest, most fearless burst of Aries: raw initiative and unfiltered drive.
What dates are the aries first decan?
The aries first decan runs Mar 21 – Mar 30, covering 0°–10° Aries.
What planet rules the aries first decan?
The aries first decan is sub-ruled by Mars. Double-Mars energy makes this decan the most assertive slice of an already assertive sign. Courage is the default setting; hesitation is foreign. These are the natural starters and first-movers who would rather act and adjust than wait and plan. The challenge is patience — the same fire that launches projects can burn out before they finish.
What does it mean if your Sun is in the aries first decan?
With a Sun, Moon, or rising in the opening degrees of Aries, you get the warrior who goes first and asks questions later — the rawest Aries there is, all start and no brakes.
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