2011 Hannington formation
|
Reconstruction of the 2011 Hannington formation | ||
| 1. |
| Draw a circle. Draw and extend the horizontal and vertical centerlines. |
| 2. |
| Construct the inscribed equilateral triangle of circle 1, pointing down. |
| 3. |
| Construct a circle centered at the lower angular point of triangle 2, passing through its upper righthand angular point. |
| 4. |
| Copy circle 3 to the upper lefthand angular point of triangle 2. |
| 5. |
| Copy circle 3 to the upper righthand angular point of triangle 2. |
| 6. |
| Construct the inscribed hexagon (regular 6-sided polygon) of circle 1, pointing down. |
| 7. |
| Construct a circle concentric to circle 4, passing through the intersection of the righthand side of hexagon 6 and the horizontal centerline. |
| 8. |
| Copy circle 7 to the center of circle 5. |
| 9. |
| Copy circle 7 to the center of circle 3. |
| 10. |
| Construct a "two-points" circle (defined by the two end-points of a centerline) between the upper intersections of circles 3 and 9 with the vertical centerline. |
| 11. |
| Copy circle 10 to the intersection of the upper side of triangle 2 and the vertical centerline. |
| 12. |
| Construct a circle concentric to circle 4, tangent to circle 11 at the lefthand side. |
| 13. |
| Copy circle 12 two times, to the centers of circles 3 and 5. |
| 14. |
| Construct a circle concentric to circle 4, tangent to circle 11 at the righthand side. |
| 15. |
| Copy circle 14 two times, to the centers of circles 3 and 5. |
| 16. |
| Copy circle 10 to the center of circle 4. |
| 17. |
| Construct a circle centered at the upper intersection of circles 4 and 5, tangent to circle 16 at the upper side. |
| 18. |
| Copy circle 17 two times, to the lower intersections of circle 3 with circles 4 and 5. |
| 19. |
| Construct a circle passing through the inner intersections of circles 14 and 15, as shown. |
| 20. |
| Construct the inscribed equilateral triangle of circle 19, pointing up. |
| 21. |
| Construct the inscribed circle of triangle 20. |
| 22. |
| Copy circle 21 to the center of circle 5. |
| 23. |
| Construct a circle concentric to circle 4, tangent to circle 22 at the righthand side. |
| 24. |
| Copy circle 23 two times, to the centers of circles 3 and 5. |
| 25. |
| Circles 3, 4, 5, 7, 8, 9, 12, 13, 14, 15, 17, 18, 23 and 24 are used for the final reconstruction. |
| 28. |
| Remove all parts not visible within the formation itself. |
| 29. |
| Colour all areas corresponding to standing... |
| 30. |
| ...or to flattened crop, and finish the reconstruction of the 2011 Hannington formation. |
| 31. |
| The final result, matched with the aerial image. |
| Copyright © 2011, Zef Damen, The Netherlands |
