Megalithic Studies - Mid Wales

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Last site update 11th June 2008.

Moonset on Drygarn Fawr cairns from S1, Llananno stone circle, Mid Wales.

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Under the guidance of the late Professor Alexander Thom studies of the archaeoastronomical potentials in the Mid Wales landscape and it's prehistoric sites were begun over two decades ago. The resulting photographic data with computer surveys give strong support to Thom's claims for the existence of the Megalithic Calendar and Lunar Standstill observation in prehistoric Britain circa 1800 BC For over 19 years photographs and videos have been taken from places marked by stone circles and standing stones on days corresponding to dates in the Megalithic Calendar and Lunar Standstill periods. When the Sun or Moon, at these pertinent declinations, crosses the horizon other megalithic monuments, of similar antiquity, may be clearly silhouetted on, or very near, the disc. Digital surveys of these images may have resolutions matching the best theodolite observations. The accumulated data demonstrates that sophisticated systems of positional horizon astronomy were practiced in Mid Wales between 2000 to 1600 B.C. Further photographic studies of sites in the Outer Hebrides, Oxfordshire and Cumbria, rendering high resolution data, suggest that identical astronomical procedures were pursued, in the same centuries, throughout Britain.

Megalithic Studies index: Introduction Study Sites. Wales: S1 Llananno, Powys.     /y Glog      /Two Tumps.      /Gorslydan.      /Rhoscrug 1.      /Drygarn Fawr. S2, Llananno, Powys.     /S1 to S2.     /y Glog.     /Warren Hill. Penrhiwen, Powys.      /Penrhiwen 2. Brook Cottage, Llananno, Powys. Four stones, Radnor, Powys.     /Evenjobb Hill.     /Bache Hill tumulus 1 Alltgoch, Talybont, South Gwynedd. Pentrefoelas stone rows, Conwy. Scotland: North Uist, Outer Hebrides      /North Uist 2. Ballochroy, N. Kintyre. England: Rollright, Oxfordshire      /Rollright 2. Thornborough, Yorkshire. India: Rola, Hazaribag, Jharkhand. Punkree- Barawadhi, Hazaribag, Jharkhand.      /Ganju complex.      /Prantic's Alignment. Meghalaya, North East Hill States.     /Noncet Market.     /Nartiang Market.     /Ummonoi and Umshiang Double Decker Living Root Bridges.      /Mt. Lumsohpetbneng 1.      /Mt. Lumsohpetbneng 2.      /Mt. Lumsohpetbneng 3. North Africa: Les Monoliths de m'Soura, Larache, Morocco.     /M'Soura 2.     /M'Soura 3 France:     Col du Petit St. Bernard, Haute Savoie.

Horizon Astronomy:      / 1 Prehistoric positional astronomy.      / 2 Foresights.      / 3 Angular displacement.      / 4 Naked eye observing.      / 5 The green flash.      / 6 Observing and weather. Megalithic Calendar:    / 1 Calendars.      / 2 Megalithic equinoxes.      / 3 The green flash.      / 4 Ballochroy.      / 5 Practical solstitial observing. Megalithic Mensuration:    / 1 Standard establishment.      / 2 Megalithic Yard.      / 3 Megalithic Inch. Megalithic Mathematics:     / 1 Early maths.       / 2 Megalithic maths.       / 3 The true circles.       / 4 The 'D' rings.       / 5 The ellipses and Pythagorean triangles.       / 6 The egg rings. Woodhenge.       / 7 The compound rings. Kerry Pole.       / 8 The compound rings. Avebury.       / 9 Avebury alternatives.      / 10 Avebury alternatives 2. Credits

with comments or queries- megalith@megalithicsites.co.uk