mega-what / prehistoric horizon calendars / Ireland, Kilkenny

Knockroe Passage Tomb: 360° S centred

South centred panoramic view with luni-solar trajectories c.3000BCE from Knockroe Passage Tomb, Kilkenny, Ireland. South is at a break in the left slope of the highest distant hill. North is obscured but seemingly at a break on the left slope of the local high point. Green lines approximate hidden horizon segments.
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© Michael Wilson.