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The Arminghall Henge in space and time

The Arminghall Henge in space and time. Willem Beex and John Peterson. Location. The first view of the Henge. Photographed by Wing Commander Insall, V.C on 18th June 1928. Published: Antiquity 3.2 (1929). N. Neolithic and Bronze Age environment. Landscape and midwinter sunset.

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The Arminghall Henge in space and time

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  1. The Arminghall Henge in space and time Willem Beex and John Peterson

  2. Location

  3. The first view of the Henge Photographed by Wing Commander Insall, V.C on 18th June 1928 Published: Antiquity 3.2 (1929) N

  4. Neolithic and Bronze Age environment

  5. Landscape and midwinter sunset

  6. Landscape and midwinter sunset

  7. 18 Dec 2002 15:35 Chapel Hill

  8. Calculation of sun’s path at mid winter sunset The apparent altitude of the sun’s centre, h, and its azimuth are approximately related (for h < 4 deg.) by a straight line: Where Q is the azimuth of the sun’s centre,  is the observer’s latitude,  is the obliquity of the ecliptic and r is the increase in apparent altitude due to refraction.

  9. Sources of information and verification The formula for ‘h’ is derived from a paper by G. R. and P. F. Freeman (on Stonehenge) presented to the 33rd annual meeting of the Canadian Archaeological Association and published in 2001. Results of calculations were checked against those published in John North’s “Stonehenge” (1996). By trial and error it was established that a value for the refraction of 0.0081 radians gave the best fit of spreadsheet values to those published by North.

  10. MWSS Simulation (spreadsheet) Now

  11. MWSS Simulation (spreadsheet) 5000 years BP

  12. Crough Patrick Rolling Sun Source: http://www.carrowkeel.com/sites/croaghpatrick/reek2.html

  13. Crough Patrick Rolling Sun

  14. Crough Patrick Rolling Sun

  15. Crough Patrick Rolling Sun

  16. Crough Patrick Rolling Sun

  17. Excavation Plan (1936) Location  Orientation

  18. Rectified aerial photograph

  19. Rectified AP, closeup

  20. Orientations compared

  21. Contour lines by theOrdnance Survey

  22. DTM created in Surfer

  23. DTM transferred to CAD

  24. Building the henge

  25. Adding textures and shades

  26. Inserting sun and trajectory

  27. Creating the animation

  28. Conclusions • Position of the Henge is northeast of the most prominent hill in the area • A midwinter sunset roll down would have been visible in 4,000 BP • This is the first accurate determination of the Henge orientation • Orientation is not accurately towards MWSS • VR allows us to explore alternative hypotheses

  29. THE END

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