Reconstruction of the 2016 Cley Hill formation | ||

1. |
Draw a circle. Draw and extend the horizontal and vertical centerlines. | |

2. |
Construct four inscribed pentagons (regular 5-sided polygons) of circle 1, one pointing up, one pointing down, one pointing to the left, and one pointing to the right. | |

3. |
Construct the inscribed regular 20-sided polygon of circle 1, by connecting all adjacent angular points of pentagons 2. | |

4. |
Draw the twenty rays of polygon 3, from the center to the angular points. Number these rays as well as the angular points 1 - 20 clockwise, starting at the top. | |

5. |
Construct a "two-points" circle (defined by the two end-points of a centerline) between angular points 3 nrs. 1 and 2. | |

6. |
Copy circle 5 to its lefthand intersection with circle 1. | |

7. |
Construct a circle concentric to circle 1, tangent to circle 6 at the upper side. | |

8. |
Draw the connecting line between angular points 3 nrs. 1 and 14. | |

9. |
Construct a circle concentric to circle 1, passing through the intersection of line 8 and ray 4 nr. 20. | |

10. |
Construct the circumscribed decagon (regular 10-sided polygon) of circle 9, pointing to the right. | |

11. |
Construct the circumscribed circle of decagon 10. | |

12. |
Construct the circumscribed regular 20-sided polygon of circle 11, with the mid-point of the upper side on the vertical centerline. | |

13. |
Construct a circle passing through angular points 3 nrs. 3 and 9, and passing through the angular point of polygon 12 in between rays 4 nrs. 2 and 3. | |

14. |
Copy circle 13 nineteen times, by repeating step 13 for the corresponding angular points with respect to the other rays 4, as shown. | |

15. |
Construct a "two-points" circle between the mid-point of the upper side of polygon 12 and its adjacent angular point to the right. | |

16. |
Copy circle 15 to the upper intersection of circle 7 and the vertical centerline. | |

17. |
Construct a circle concentric to circle 1, tangent to circle 16 at the lower side. | |

18. |
Circles 7, 9, 13, 14, and 17, are used for the final reconstruction. | |

19. |
Remove all parts not visible within the formation itself. | |

20. |
Colour all areas corresponding to standing... | |

21. |
...or to flattened crop, and finish the reconstruction of the 2016 Cley Hill formation. | |

22. |
The final result, matched with the aerial image. |

Copyright © 2016, Zef Damen, The Netherlands |