Celtic Astrology

Guides and articles about Celtic Astrology.

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Reference

Complete reference

The 13 Celtic Tree Signs

The Ogham tree calendar — thirteen lunar months, each governed by a sacred tree whose ecology and mythology become a lens for birth sign and seasonal energy.

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  • celtic tree calendar
  • celtic astrology

The Celtic Tree Calendar: A Complete Guide to the 13 Tree Signs

Discover your Celtic tree sign. A complete guide to the 13-tree Ogham calendar — origins, how it works, and what each birth sign reveals about you.
  • celtic ogham alphabet
  • ogham divination meanings

Celtic Ogham: The Tree Alphabet and Its Divination Uses

Ogham is the earliest writing system of the British Isles — a series of notches and lines carved into stone and wood, each letter named for a tree. Here's the complete Ogham alphabet, the mythology behind each letter, and how the system has been used for divination from medieval manuscripts to contemporary practice.