Dodecatemoria

Zodiac chart with dodecatemoria shown within the sign of Aries

Synonym: dwads

The division of each zodiac sign into twelve segments of 2.5 degrees, with each segment receiving the name of a sign of the zodiac. Also called the dwadashamsa of Indian astrology, usually simplified today as dwad.

There are several methods to name the dwads, but the most common one is to give the first dwad of a sign the same name as its sign, and then to name the remaining dwads in their order around the zodiac. For example, the first dwad in the sign of Aquarius would be Aquarius; the second one, Pisces; the third one, Aries, and so on.

Sign- degrees	Aries	Taurus	Gemini	Cancer	Leo	Virgo	Libra	Scorpio	Sagittarius	Capricorn	Aquarius	Pisces
0-2,5°
2,5-5°
5-7,5°
7,5-10°
10-12,5°
12,5-15°
15-17,5°
17,5-20°
20-22,5°
22,5-25°
25-27,5°
27,5-30°

The dwad is of some antiquity in western astrology. The Latin poet Manilius in the first century CE (Astronomica 2:693-787) gave them considerable importance. Dwads can be used to detect finer shades of meaning in a natal horoscope, or to detect differences in the charts of identical twins. Dwads are rarely used in practice, however.

There exists a close relationship between the 12th Harmonic Chart and the Dodecatemoria chart. Both are variants of the 12th harmonic.

At Astrodienst's Extended Chart Selection they are easy to compute, see link below.

See also

• Decan
• Face
• Sabian Symbols

Weblinks

• Wikipedia: Dodecatemoria
• Wikipedia: Dwadasama
• Calculating Dodecatemoria (Astrodienst; select chart type: "Dodecatemoria / Dvadasamsha")
• calculating duad and dwad charts (Portman, 2009)
  • Duads in relationships and family (Alice Portman, 2009)
  • Duad Charts describe the differences in Twins (Portman, 2009)