Decans | NatalSky

♈︎ 牡羊座 Mar 21 - Apr 19 ♉︎ 牡牛座 Apr 20 - May 20 ♊︎ 双子座 May 21 - Jun 20 ♋︎ 蟹座 Jun 21 - Jul 22 ♌︎ 獅子座 Jul 23 - Aug 22 ♍︎ 乙女座 Aug 23 - Sep 22 ♎︎ 天秤座 Sep 23 - Oct 22 ♏︎ 蠍座 Oct 23 - Nov 21 ♐︎ 射手座 Nov 22 - Dec 21 ♑︎ 山羊座 Dec 22 - Jan 19 ♒︎ 水瓶座 Jan 20 - Feb 18 ♓︎ 魚座 Feb 19 - Mar 20

What Are Decans?

In astrology, each zodiac sign occupies 30 degrees of the 360-degree zodiac wheel. These 30 degrees are further divided into three segments of 10 degrees each, called decans (or decanates). Each decan is influenced by a sub-ruling planet drawn from the other signs of the same element, creating three distinct "flavors" within each sign.

The first decan (0-10°) is ruled by the sign's own planet, making it the purest expression. The second decan (10-20°) takes its sub-ruler from the next sign of the same element. The third decan (20-30°) draws from the third sign of the same element. This system helps explain why two people of the same sign can have noticeably different personalities.

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