Reconstruction of theOld Sarum 5-05-2010 formation 1. Draw a circle. Draw and extend the horizontal and vertical centerlines. 2. Construct a "two-points" circle (defined by the two end-points of a centerline) between the center of circle 1 and its upper intersection with the vertical centerline. 3. Construct a "two-points" circle between the centers of circles 1 and 2. 4. Copy circle 3 to the center of circle 2. 5. Construct a "two-points" circle between the centers of circles 3 and 4. 6. Copy circle 5 to the center of circle 2. 7. Copy circle 3 to the center of circle 1, and move it (copy and delete original) to its own lower intersection with the vertical centerline. 8. Copy circle 5 to the center of circle 7. 9. Construct a "two-points" circle between the centers of circles 5 and 6. 10. Construct a "two-points" circle between the centers of circles 5 and 9. 11. Copy circle 10 to the center of circle 2. 12. Construct a circle concentric to circle 1, tangent to circle 11 at the upper side. 13. Copy circle 2 to the lower intersection of circle 7 and the vertical centerline. 14. Construct two inscribed equilateral triangles of circle 13, one pointing up, one pointing down. 15. Create a "Vesica Pisces"-pattern (two equal circles passing through each other's center), by constructing two circles, both passing through the lefthand and righthand intersections of triangles 14, one passing through the top angular point, the other through the bottom angular point of these triangles, as shown. 16. Construct three equal "two-points" circles, in between the intersections of circles 15 and the vertical centerline, as shown (dividing the vertical centerline of circle 13 into three equal parts). 17. Copy circle 1 to the center of circle 13. 18. Construct a circle concentric to circle 17, tangent to circle 12 at the upper side. 19. Copy circles 17 and 18 as a whole five times, to the (other) centers of circles 16 and their lower intersections with the vertical centerline. 20. Remove from circles 1, 2, 12, 17, 18 and 19, all redundant parts not present in the formation itself, to yield the pattern as shown. 21. Construct a circle concentric to circle 13, passing through the righthand intersection of circle 7 and lower circle 15. 22. Copy circle 21 to the righthand intersection of circle 1 and the horizontal centerline. 23. Construct a circle concentric to circle 1, tangent to circle 22 at the righthand side. 24. Construct a circle concentric to circle 1, tangent to circle 22 at the lefthand side.(For clarity, some of the results of previous steps are removed temporarily). 25. Construct the inscribed regular 18-sided polygon of circle 24, pointing down. 26. Copy circle 5 seven times, to the lower seven angular points of polygon 25. 27. Circles 4, 6, 7, 8, 23 and 26, and pattern 20, are used for the final reconstruction. 28. Remove all parts not visible within the formation itself.High resolution dwf-file 29. Colour all areas corresponding to standing...High resolution dwf-file 30. ...or to flattened crop, and finish the reconstruction of the Old Sarum formation of 5-05-2010.High resolution dwf-file 31.  Courtesy the Crop Circle Connector Photos by: Lucy Pringle The final result, matched with two aerial images. Copyright © 2010, Zef Damen, The NetherlandsPersonal use only, commercial use prohibited. 