Plate 09 of 11 · cca-2000-woodborough-sunflower
Woodborough Hill sunflower
A 70 m sunflower head on Woodborough Hill: 14 rings of 44 curved triangles laid checkerboard-fashion, each row shifted one ray, so the standing and flattened cells weave two counter-rotating spiral families around a flattened centre disc, all inside a plain flattened rim.
Survey record
- Reported
- 2000-08-13
- Location
- Woodborough Hill, Alton Barnes, Wiltshire · map
- Coordinates
- 51.352, -1.822 (±800 m)
- Crop
- wheat
- Span
- 70 m
- Symmetry
- 22-fold, mirror
- Elements
- 310 rendered from 16 declared
- Fidelity
- level 3 · confidence high
- Digitized
- claude-fable-5, 2026-08-19
Construction
44 rays at 8.18° and 15 concentric circles (disc edge 7.09 m to lattice outer 32.07 m, uniform 1.78 m spacing) cut the field into 14 rows of 44 curved triangles: straight chords join ring k at ray j to ring k+1 at ray j±1. Cells are laid checkerboard-fashion — per row, 22 outward-pointing standing triangles and 22 inward-pointing flattened ones, base centres advancing one ray per row so the diagonals read as two counter-rotating spiral families. A plain flattened rim band (32.07-35 m) closes the design; flattened centre disc.
Sources
- Zef Damen (geometry reference) (reconstruction)
- Crop Circle Connector (copyrighted imagery — link only) (photo)
- en.wikipedia.org (report)