mega-what / prehistoric horizon calendars / Ireland, West Cork, Ballingurteen

Knockawaddra Stone Row: Luni-solar rises

East centred view with luni-solar trajectories c.1200BCE from Knockawaddra Stone Row, Cork, Ireland. The equinox and equinox / cross-quarter midpoints are indicated by dips. Winter cross-quarters get a sea horizon as well while summer ones are at a step.
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© Michael Wilson.