Reconstruction of the 2007 Green Street formation
1.		Draw a circle. Draw the horizontal and vertical centerlines.
2.		Construct a "two-points" circle, defined by the end-points of a centerline, with one point at the center of circle 1, the other at the upper intersection of circle 1 and the vertical centerline.
3.		Create a hexagram (regular six-pointed star), by constructing two inscribed equilateral triangles of circle 2, one pointing up, one pointing down.
4.		Construct a circle, passing through the intersections of the lefthand and righthand sides of triangles 3, and passing through the upper intersection of circle 2 and the vertical centerline, as shown.
5.		Construct the inscribed hexagon (regular 6-sided polygon) of circle 1, pointing up.
6.		Construct a circle centered at the lower intersection of circle 4 and the vertical centerline, passing through the intersections of circle 4 and hexagon 5.
7.		Draw two rays of hexagon 5, from the center of circle 1 to the lower lefthand and righthand angular points.
8.		Copy circle 6 two times, to its intersections with rays 7.
9.		Construct a "two-points" circle, with one point at the center of circle 1, the other at the upper intersection of circle 6 and the vertical centerline.
10.		Create a hexagram, by constructing two inscribed equilateral triangles of circle 9, one pointing up, one pointing down.
11.		Construct a circle, passing through the intersections of the lefthand and righthand sides of triangles 10, and passing through the upper intersection of circle 9 and the vertical centerline.
12.		Construct a circle concentric to circle 11, tangent to the upper side of triangle 10 pointing down.
13.		Construct a circle concentric to circle 1, passing through the center of circle 11 (and 12).
14.		Copy circle 11 two times, to the intersections of circle 13 and rays 7.
15.		Copy circle 12 two times, to the centers of circles 14.
16.		Construct a circle concentric to circle 6, passing through the upper intersection of lefthand circle 8 and righthand circle 14.
17.		Copy circle 16 two times, to the centers of circles 8.
18.		Construct a "two-points" circle, with the points at the upper intersections of circles 12 and 16 with the vertical centerline.
19.		Copy circle 18 to the center of circle 1.
20.		Construct a circle centered at the upper intersection of circle 16 and the vertical centerline, tangent to circle 6 at the upper side.
21.		Copy circle 20 to the upper intersection of circle 1 and the vertical centerline.
22.		Construct a circle concentric to circle 1, tangent to circle 21 at the lower side.
23.		Only circles 1, 6, 8, 11, 12, 14, 15, 16, 17, 19 and 22 are used for the final reconstruction.
24.		Remove all parts not visible in the formation itself.
25.		Colouring all areas corresponding to standing crop...
26.		...or to flattened crop, will finish the reconstruction of the 2007 Green Street formation.
27.		The final result, matched with the aerial image.

Copyright © 2007, Zef Damen, The Netherlands

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