Reconstruction of the Cherhill White Horse 16-04-2017 formation
1.		Draw a circle. Draw and extend the horizontal and vertical centerlines.
2.		Construct the inscribed heptagon (regular 7-sided polygon) of circle 1, pointing to the right.
3.		Construct the inscribed circle of heptagon 2.
4.		Construct the inscribed heptagon of circle 3, pointing to the right.
5.		Construct the inscribed circle of heptagon 4.
6.		Construct the circumscribed heptagon of circle 1, pointing to the left.
7.		Construct the circumscribed heptagon of (the circumscribed circle of) heptagon 6, pointing to the right.
8.		Repeat this three times. Construct the circumscribed heptagon of heptagon 7, pointing to the left.
9.		Construct the circumscribed heptagon of heptagon 8, pointing to the right.
10.		Construct the circumscribed heptagon of heptagon 9, pointing to the left.
11.		Construct the circumscribed circle of heptagon 10.
12.		Extend the upper and lower lefthand sides of heptagon 10 to the left, upto the horizontal centerline.
13.		Construct a circle centered at the lefthand angular point of heptagon 10, tangent to circle 1 at the lefthand side.
14.		Copy circle 13 to the intersection of lines 12, and move this circle (copy and delete original) to its own righthand intersection with the horizontal centerline.
15.		Construct a circle centered at the lefthand intersection of circle 1 and the horizontal centerline, tangent to circle 3 at the lefthand side.
16.		Construct a circle concentric to circle 15, tangent to circle 5 at the lefthand side.
17.		Copy circles 15 and 16 to the righthand intersection of circle 14 and the horizontal centerline.
18.		Construct two circles concentric to circle 14, tangent to circles 17 at the lefthand sides.
19.		Construct a "two-points" circle (defined by the two end-points of a centerline) between the lefthand intersections of circles 3 and 5 with the horizontal centerline.
20.		Construct a circle concentric to circle 19, tangent to circle 1 at the lefthand side.
21.		Construct a circle concentric to circle 19, tangent to circle 15 at the lefthand side.
22.		Copy circles 19, 20, and 21 two times, to the centers of circles 1 and 14. See detail.
23.		Construct three pairs of parallel lines, tangent to circles 22 at both sides. See detail.
24.		Construct a "two-points" circle between the lefthand intersection of circle 5 and the righthand intersection of the outer righthand circle 22 with the horizontal centerline.
25.		Circles 1, 3, 5, 11, 14, 18, and 24, and lines 23, are used for the final reconstruction.
26.		Remove all parts not visible within the formation itself. pdf-file
27.		Colour all areas corresponding to standing... pdf-file
28.		...or to flattened crop, and finish the reconstruction of the Cherhill White Horse formation of 16-04-2017. pdf-file
29.	Photo courtesy the Crop Circle Connector	The final result, matched with the aerial image.
Copyright © 2017, Zef Damen, The Netherlands Personal use only, commercial use prohibited.