Free Big 3 Astrology Calculator
Your Big 3 — Sun, Moon, and Rising (Ascendant) — are the three most important signs in your chart. Together they describe your core identity, emotional nature, and outward presence.
Enter your birth details below to calculate your Big 3 instantly. Save your results with a free Leymora account to explore deeper Core Essence readings.
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Frequently asked questions
What are the Big 3 in astrology?
The Big 3 are your Sun sign, Moon sign, and Rising (Ascendant) sign — the most referenced trio in modern astrology.
Why is birth time important for the Big 3?
Sun and Moon can often be found from date alone, but Rising sign changes every ~2 hours and requires birth time and place.
Is the Big 3 enough to understand my chart?
It is a strong starting point, but the full chart includes planets, houses, and aspects that add nuance.
Can I calculate Big 3 without knowing my Rising?
You will still see Sun and Moon. Without birth time we default to noon, which may not reflect your true Rising sign.
How is Rising sign calculated?
The Rising sign is the zodiac degree on the eastern horizon at your birth time and location.