mega-what / prehistoric horizon calendars / Ireland, Kilkenny

Knockroe Passage Tomb: Luni-solar sets

West centred view with luni-solar trajectories c.3000BCE from Knockroe Passage Tomb, Kilkenny, Ireland. The equinox is central on the top slope of Slievenamon. Equinox / cross-quarter midpoints are on a top to the left and in a dip to the right of it. Winter cross-quarters and winter solstice are in dips.
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© Michael Wilson.