Date

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

2. Copy circle 1 to its righthand intersection with the horizontal centerline:

3. Copy circle 1 to its lefthand intersection with the horizontal centerline:

4. Draw the connecting line between the two upper intersections of circle 1 with circles 2 and 3:

5. Construct a circle centered at the intersection of line 4 and the vertical centerline, tangent to circle 1 at the upper side:

6. Construct a circle concentric to circle 1, tangent to circle 5 at the lower side:

7. Copy circle 6 to the center of circle 2:

8. Construct a circle concentric to circle 2, tangent to circle 5 at the lower righthand side:

9. Copy circle 8 to the center of circle 1:

10. Construct a circle centered at the upper intersection of circle 1 and the vertical centerline, tangent to circle 9 at the upper side:

11. Construct a circle concentric to circle 1, tangent to circle 10 at the lower side:

12. Copy circle 11 to the center of circle 2:

13. Only circles 1, 2, 6, 7, 8, 9, 11 and 12 are needed for the final reconstruction:

14. Remove all parts not visible in the formation itself:

15. Colour all areas corresponding to standing:

16. ...or to flattened crop. This will finish the reconstruction of the 2007 Chilcomb Down crop circle formation:

17. The final result, matched with the aerial image:

Copyright © 2007 Zef Damen