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 |