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Zodiac Signs

The 12 signs divide the zodiac into equal 30-degree sectors, each associated with an element (Fire, Earth, Air, Water), a modality (Cardinal, Fixed, Mutable) and a ruling planet. The order and names originate in Babylonian astronomy and were systematized by the Greeks around the 2nd century CE.

Frequently asked questions

Do the 12 signs correspond to the 12 zodiac constellations?
Not exactly. The tropical zodiac used in Western astrology divides the circle into 12 equal 30° sectors starting at the March equinox, with no direct relationship to the actual size of the constellations — which are irregular and, in some cases (like Ophiuchus), aren't even part of the 12-sign system.