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gjrk G
gjrk Nov 19, 2008 14:14:22
Replying to tiompan

The horizon is about 20m higher than the circle at that point (my GPS has 173m as against 194m, and the OS map roughly confirms it). Jon Patrick has confirmed a winter solstice axial line for the circle (Lettergorman), but its about half a degree off perfect and there's one portal down - to complicate matters.

T tiompan
tiompan Nov 19, 2008 14:33:52
Replying to gjrk

gjrk wrote:
The horizon is about 20m higher than the circle at that point (my GPS has 173m as against 194m, and the OS map roughly confirms it). Jon Patrick has confirmed a winter solstice axial line for the circle (Lettergorman), but its about half a degree off perfect and there's one portal down - to complicate matters.
For Knockawaddra with 187 azimuth 20m height difference and 1.1 Km distance I get a dec of 36.3 ,so quite a bit off .Ruggles doesn't seem to mention it in "AiPB&I" ?