https://us02web.zoom.us/j/87009262149?pwd=KjGOFepVsfvwHww6V3IlQdzchErbit.1

Meeting ID

870 0926 2149

Passcode

493988

The twelfth‑parts create a kind of “micro‑zodiac” within every zodiac sign. First used by the Babylonians, they are one of the oldest astrological techniques developed after the twelve‑sign zodiac. Over time, Hellenistic, Medieval, and Indian astrologers all made use of them, and they continue to be part of modern astrological practice.

You may have come across them under different names—dodecatemory, duodena, , dwadashama, or simply dwads or duads. Whatever the term, the idea is the same: twelfth‑parts add an extra layer of meaning that astrologers across many traditions have found valuable for thousands of years.

In this talk, we’ll look at how twelfth‑parts work in practice and how they can offer fresh insights when interpreting a horoscope.

Mark Cullen studied with the Faculty of Astrological Studies and later completed Deborah Houlding’s STA qualification in horary astrology. He served as chair of the Scottish Astrological Association from 2011–16 and has been the mundane astrology moderator on the Skyscript website since 2010.

Mark holds an MA in History and enjoys researching a wide range of topics, including ancient, medieval, and Renaissance astrology, as well as mundane and financial astrology. He also has a long‑standing interest in Tarot, the I Ching, and number symbolism.

His spiritual outlook has been shaped by a long involvement in Buddhism since his early twenties. Mark lives in Edinburgh and works in the voluntary