South is at a slight dip of the right local slope and coincides with the start of the limiting lunar period.
Winter cross-quarter sun rises from the very local hilltop and the solstice from another hump.
Then, for about four years, the most southerly moons of the month cannot be seen at all.
The edges of the local hill are position sensitive solstice and lunar markers.
Then distant horizons give better precision than the local ground and North is on the right slope of the highest distant hill.
Vertical scale x4, maxpic 3200x1600.
Orange lines mark the annual solar round. Lunistice positions over the 18.6 year lunar nodal cycle are blue. More about the Solar Calendar More about the Lunar Calendar More about this placeLook North
Ardnageehy More Wedge Tomb: 360° S centred
South is at a slight dip of the right local slope and coincides with the start of the limiting lunar period.
Winter cross-quarter sun rises from the very local hilltop and the solstice from another hump.
Then, for about four years, the most southerly moons of the month cannot be seen at all.
The edges of the local hill are position sensitive solstice and lunar markers.
Then distant horizons give better precision than the local ground and North is on the right slope of the highest distant hill.
- Derreengreanagh Wedge Tomb is on top of the ridge, c.150m to the south but a boundary fence intervenes.
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