mega-what / prehistoric horizon calendars / Ireland, West Cork, Beara, Ardgroom

Ardgroom Multiple Stone Circle: Luni-solar rises

East centred view with luni-solar trajectories c.1200BCE from Ardgroom Multiple Stone Circle, Cork, Ireland. Winter cross-quarters are on a hilltop. Summer cross-quarters are at a break leading into a dip that marks minor standstill. Equinox / summer cross-quarter mid­point is in a dip, equinox / winter cross-quarter mid­point makes do with a slight break. The equinoctial zone is useful but less than perfectly accurate which may be the reason for the outlier.
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© Michael Wilson.