2026 Roundway Hill formation
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Reconstruction of the 2026 Roundway Hill formation | ||
| 1. |
| Draw a circle. Draw and extend the horizontal and vertical centerlines. |
| 2. |
| Construct the inscribed regular 24-sided polygon of circle 1, pointing up. Number the angular points 1 - 24, clockwise, starting at the top. |
| 3. |
| Construct a circle centered at angular point 2 nr. 1, passing through angular point nr. 2. |
| 4. |
| Copy circle 3 to the center of circle 1. Call the lefthand intersection with the horizontal centerline "A", and the righthand intersection "B". |
| 5. |
| Draw two lines from angular point nr. 1 to A and B. |
| 6. |
| Draw two lines, from A to angular point nr. 4, and from B to angular point nr. 22. |
| 7. |
| Construct a circle centered at the mutual intersection of lines 6, tangent to the righthand line 5. |
| 8. |
| Draw two lines, from A to angular point nr. 2, and from B to angular point nr. 24. |
| 9. |
| Copy circle 7 to the mutual intersection of lines 8. |
| 10. |
| Construct a circle concentric to circle 1, tangent to circle 9 at the upper side. |
| 11. |
| Copy circle 7 two times, to both intersections of circle 10 and the horizontal centerline. |
| 12. |
| Construct a circle concentric to circle 9, passing through the intersection of the righthand lines 5 and 6. |
| 13. |
| Construct a circle concentric to circle 1, tangent to circle 12 at the upper side. |
| 14. |
| Construct a circle centered at the righthand intersection of circle 10 and the horizontal centerline, tangent to circle 13 at the near side. |
| 15. |
| Copy circle 14 to the righthand intersection of circle 1 and the horizontal centerline. |
| 16. |
| Construct a circle concentric to circle 1, tangent to circle 15 at the righthand side. |
| 17. |
| Draw all "missing" lines from A and B to angular points nrs. 2, 3, 4, 22, 23, and 24. |
| 18. |
| Draw all lines from A and B to angular points nrs. 10, 11, 12, 13, 14, 15, and 16. |
| 19. |
| Circles 1, 10, 11, 13, and 16, and lines 5, 6, 8, 17, and 18, are used for the final reconstruction. |
| 20. |
| Remove all parts not visible within the formation itself. |
| 21. |
| Colour all areas corresponding to standing... |
| 22. |
| ...or to flattened crop, and finish the reconstruction of the 2026 Roundway Hill formation. |
| 23. |
| The final result, matched with the aerial image. |
| Copyright © 2026, Zef Damen, The Netherlands |
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