There appears to be a slight mix-up in the title provided, as there is no historical text, book, or documentary titled OghamStars: The Secret History of Celtic Star Gazing.
Instead, the name “OghamStars” refers to a dynamic geometry software application developed by Tom Chenhall, while the history of Celtic stargazing is a rich subject found in archaeological and astronomical studies.
The separate contexts behind both aspects of the query clarify the distinction: 1. OghamStars (The Software)
OghamStars is an open-source mathematics and graphics program available on platforms like SourceForge.
Functionality: It allows users to dynamically draw complex geometric stars, adjust parameters in real-time, and experiment with symmetry.
Purpose: It is primarily used as an educational tool to get students interested in algebra and geometry through visual algorithms, as well as by digital artists exploring sacred geometry. 2. The Actual History of Celtic Star Gazing
If you are looking for the “secret history” of how the ancient Celts and Druids mapped the night sky, you are likely looking for the field of Archaeoastronomy in Ireland and the British Isles. The true history is preserved through physical monuments and artifacts rather than written books:
The Coligny Calendar: Discovered in France, this massive bronze plate is the most definitive proof of Celtic astronomy. It details a complex lunisolar calendar that tracked both the cycles of the moon and the solar year to guide agricultural and ceremonial seasons.
The Megalithic Mounds (Newgrange & Loughcrew): Built in Ireland during the Neolithic period (and utilized by later Celtic cultures), these structures are precisely aligned to the sun. On critical dates like the winter solstice, beams of light enter the inner chambers to illuminate specific, coded rock carvings.
Celtic Constellations: Unlike the Greek zodiac, Celtic star lore was tied to regional mythology. For example, the constellation Perseus represented the Celtic hero Llew Llaw Gyffes, and the Milky Way was known as Sarn Gwydion (the path of the wizard Gwydion). Prominent Books on This Subject
If you are searching for a specific book on this topic, you might be thinking of one of these highly regarded texts: The Night Sky: A Secret History of Stars
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