mega-what / prehistoric horizon calendars / Ireland, West Cork, Mizen Peninsula, Dunmanus

Dunmanus Stone Row: Luni-solar sets

West centred view with luni-solar trajectories c.1200BCE from Dunmanus East Standing Stone / Row, Cork, Ireland. Knockaphuca has the equinox on its top, winter cross-quarters at its left base and the equinox / summer cross-quarter midpoint at its right base. South lunistices span a dip the centre of which is an intersect, fine tuned by exact position. Green lines approximate hidden horizons.
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© Michael Wilson.