Sandal Castle
UK20210818_A18 August 2021·Sandal Castle, West Yorkshire·wheat
Reported 18 August 2021 in wheat at Sandal Castle, West Yorkshire. One archive recorded it, so nothing about it can be cross-checked.
The record
- date
- 18 August 2021 (day precision)
- place
- Sandal Castle
West Yorkshire
England - crop
- wheat
- size
- not recorded
- recorded by
- cc
- images
- 3 · 2 diagram, 1 aerial
- writing
- nothing was written about this formation on any source
Also called
Nothing else. No other name or place string appears on any source record for this formation.
Where exactly
- coordinate
- 53.660215, -1.486872
- how it was got
- os open names
place, to within 2,000 m, from the cc record - on a map
- OpenStreetMap
No source publishes a coordinate for any formation in this archive. Every coordinate here is derived from the place name a source printed, and this page says how precise that makes it rather than rounding it away.
Images
3 image(s) on this formation's own source records. Click a tile for the full image; the bytes are fetched when you ask for them and are not stored in this page.
Diagrams (2)
diagram
cropcirclecenter.com / Bertold Zugelder site default
diagram
cropcirclecenter.com / Bertold Zugelder site default
| site | kind | credit | basis | caption | size | file | source page |
|---|---|---|---|---|---|---|---|
| cc | diagram | cropcirclecenter.com / Bertold Zugelder | site default | crop circle in Sandal Castle | August 18 2021 | 575×415 78.9 KiB image/jpeg |
image a81254222d92 | https://www.cropcirclecenter.com/ccdata/2021/08/18/UK20210818_A.html |
| cc | diagram | cropcirclecenter.com / Bertold Zugelder | site default | crop circle at Sandal Castle | August 18 2021 | 575×415 78.9 KiB image/jpeg |
image a81254222d92 | https://www.cropcirclecenter.com/date/2021/202108.html |
Photographs (1)
| site | kind | credit | basis | caption | size | file | source page |
|---|---|---|---|---|---|---|---|
| cc | aerial | James Thackrah | image credit | crop circle in Sandal Castle | August 18 2021 | 575×415 399.5 KiB image/jpeg |
image 689ba43a540a | https://www.cropcirclecenter.com/ccdata/2021/08/18/UK20210818_A.html |
Date
18 August 2021, to day precision. What a source records is the day a formation was found and reported.
- reported by
- cc: 18 August 2021
- weekday
- Wednesday, day 230 of the year, ISO week 33, summer
- sun and moon
- 35.3 days before the September equinox; moon waxing gibbous (81% lit), 4.0 days before the full moon (computed at 12:00 UTC; a reported date is a discovery date, not a creation date)
Place
What each source printed, and the coordinate derived from it. No source in this archive publishes a coordinate of its own.
- coordinate
- 53.660215, -1.486872 — place, ±2,000 m, by os_open_names, from the cc record
- on a map
- OpenStreetMap
| site | place | county | country | grid ref | what3words | fix |
|---|---|---|---|---|---|---|
| cc | West Yorkshire | England | 53.660215, -1.486872 place / os_open_names |
Crop and size
- crop
- wheat (cc: wheat)
- diameter
- not recorded by any source
- size as written
- not recorded
Source records
What each source published, side by side. A row whose values differ across the sources is marked: the archive prints the disagreement rather than choosing a winner.
| field | cc cropcirclecenter.com |
|---|---|
| id / slug | UK20210818_A |
| name | Sandal Castle |
| location | |
| county | West Yorkshire |
| country | England |
| date reported | 2021-08-18 |
| date precision | day |
| crop | wheat |
| size | |
| diameter (ft) | |
| grid reference | |
| what3words | |
| map link | |
| credits | James Thackrah, cropcirclecenter.com / Bertold Zugelder |
| source page | https://www.cropcirclecenter.com/date/2021/202108.html |
| link to the entity | singleton decided by none on 2026-09-11 |
| warnings | none |
| record | cc/d7f8db484c84e… raw record view: /formation/cc/d7f8db484c84e770b8c8d608236c2404d1e801edbf93e411b394277f327a644c in the preview app |
Texts
no text documents in the archive for this formation
Claims about this formation
no claim was extracted from a text about this formation
Geometry
2 diagram file(s) on this page. measured from the diagram itself, and experimental: the extractor's rotational order is right on 88.8 % of a 200-diagram hand-labelled set against a gate of 90 %, so read a number here beside the picture rather than instead of it.
| diagram | rotational symmetry | elements | rings | mirror | fill |
|---|---|---|---|---|---|
| cc a8125422 | ≈ 5-fold score 0.963 | 6 | 3 | 0.874 | 0.6117 |
Experimental, and marked ≈ wherever it appears. These numbers are read off a drawing, not off the field: the extractor's rotational order agrees with a hand-labelled set on 88.8 per cent of 200 diagrams against a gate of 90 per cent, its element count is within one on 97.5 per cent, and its ring count is not calibrated at all. Nothing in the analysis tree is derived from the rotational order while that gate is unmet.
Diagrams that look like these: cc a8125422— the nearest by perceptual hash. The whole archive is browsable by shape in the shape section, and this formation's own diagrams go straight into that grid: show them in the grid.
Neighbours
In time
- previous
- Sandal Castle 16 August 2021, Sandal Castle
- next
- Blandford Forum 23 August 2021, Blandford Forum
- previous in UK
- Sandal Castle 16 August 2021
- next in UK
- Blandford Forum 23 August 2021
- same day
- no other formation is dated this day
- within 7 days and 25 km
- Sandal Castle 16 August 2021, 742 m away, 2 day(s) apart
In place
The nearest formations the archive can place.
Sandal Castle15 July 2001Sandal Castle
0 m away, 2001-07-15
Sandal Castle25 June 2003Sandal Castle
0 m away, 2003-06-25
Sandal Castle16 August 2021Sandal Castle
742 m away, 2021-08-16
Rothwell17 September 1998Rothwell
9.8 km away, 1998-09-17
Barnsley20 May 1998Barnsley
11.9 km away, 1998-05-20 Barnsley22 June 1999
Barnsley
11.9 km away, 1999-06-22
- same county and year
- Sandal Castle 16 August 2021
Provenance
- entity built at
- 2026-09-11T19:20:39Z (derived from the link decisions, not from this build)
- index run ids
- none
- reviews applied
- none
- open queue pairs
- none
- entity record
- index/formations/UK20210818_A.json · row in index/manifest.jsonl
- input digests
- entity 3b27d8b3d182 · images 7fdf371d7eda · texts 4f53cda18c2b · geo c1d08641ccd6