Pop Up Glossary. Move mouse over Text and Click

Warren Hill

Megalithic Calendar alignment from S2, Llananno to Warren Hill, Llanbister. Calendar Intervals nos. 9.5 and 16.5.

This superbly arranged twin foresightdelineates the disc of the Sun when sitting at semi-diameter on the horizon. The disc is precisely framed by the tumuli on the left and hill notch on the right when the Sun rises at the declination for the first days of intermediate Megalithic Calendar epochs nos: 9.5 and 16.5.

The declination of the centre of the Sun at this moment was only 0.75 minutes short of the ideal for the Intermediate Megalithic Calendar Intervals nos. 9.5 & 16.5. The ideal declination, (-3 deg. 59.4 mins.), had been attained 47 minutes, in time, before this photograph was taken.

At 1 sec the Sun has risen about 8 arc seconds but the green flash seems to have a sagitta of several arc minutes. The solar disc is montaged for reference.

This is the first visible gleam of the Sun. The height of this gleam can only be a few seconds of arc.

Warren Hill, Llanbister. One of the high hills on the Crown Estates, Llanbister/Llananno. A typical Mid Wales moel- a round-topped symmetrical sided hill. All of the highest tops on these Crown properties are adorned with one or more earthen tumuli. The bed stone of this area is Silurian/Ordovician mud-stone and very little rock is exposed as even the highest hills have a covering of boulder clay. The only available materials for mound building is this clay and turf stripped from the nearby hill-side.

	<<<Back

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