mega-what / prehistoric horizon calendars / England, North-East Somerset, Wellow

Stoney Littleton Long Barrow: Luni-solar rises

East centred view with luni-solar trajectories c.3500BCE from Stoney Littleton Long Barrow, Somerset, England. The hilltop is a half-month before spring equinox. The equinox is at a slight break in the slope. Winter and summer cross-quarters are at the base of the hill to either side.
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© Michael Wilson.