2016 White Sheet Hill formation
|
Reconstruction of the 2016 White Sheet Hill formation | ||
| 1. |
| Draw a circle. Draw and extend the horizontal and vertical centerlines. |
| 2. |
| Construct the inscribed pentagon (regular 5-sided polygon) of circle 1, pointing up. Number the angular points clockwise 1 - 5, starting at the top. |
| 3. |
| Draw the five diagonals of pentagon 2. |
| 4. |
| Draw the five diagonals of the pentagon enclosed by diagonals 3. |
| 5. |
| Construct a circle concentric to circle 1, passing through the mutual intersections of diagonals 4. |
| 6. |
| Construct the inscribed circle of pentagon 2. |
| 7. |
| Construct the inscribed pentagon of circle 6, pointing down. Number the angular points clockwise 6 - 10, starting at the lower angular point. |
| 8. |
| Draw the five diagonals of pentagon 7. |
| 9. |
| Draw the five diagonals of the pentagon enclosed by diagonals 8. |
| 10. |
| Construct the inscribed circle of the pentagon enclosed by diagonals 9. |
| 11. |
| Construct a circle concentric to circle 1, passing through the intersection of the lower righthand diagonal 9 and the horizontal centerline, as shown. |
| 12. |
| Copy circle 11 five times, to the angular points of pentagon 7. |
| 13. |
| Construct the circumscribed circle of the pentagon (passing through its angular points), enclosed by the upper side of pentagon 7, by diagonals 1-3 (from angular point 1 to angular point 3) and 1-4, and by diagonals 7-9 and 8-10. |
| 14. |
| Copy circle 13 to the center of circle 1. |
| 15. |
| Construct a circle centered at the intersection of the upper side of pentagon 7 and the vertical centerline, tangent to circle 13 at the upper side. |
| 16. |
| Copy circle 15 to the top of pentagon 2. |
| 17. |
| Construct a circle concentric to circle 1, tangent to circle 16 at the upper side. |
| 18. |
| Construct a circle centered at the upper, and passing through the lower intersections of circle 16 and the vertical centerline. |
| 19. |
| Construct a circle concentric to circle 1, tangent to circle 18 at the upper side. |
| 20. |
| Copy circle 15 to the upper intersection of circle 18 and the vertical centerline. |
| 21. |
| Construct a circle concentric to circle 1, tangent to circle 20 at the upper side. |
| 22. |
| Circles 5, 10, 12, 14, 17, 19, and 21, and pentagon 2, are used for the final reconstruction. |
| 23. |
| Remove all parts not visible within the formation itself. |
| 24. |
| Colour all areas corresponding to standing... |
| 25. |
| ...or to flattened crop, and finish the reconstruction of the 2016 White Sheet Hill formation. |
| 26. |
| The final result, matched with the aerial image. |
| Copyright © 2016, Zef Damen, The Netherlands |
