Callington
UK19910720_B20 July 1991·Callington, Cornwall
Reported 20 July 1991 at Callington, Cornwall. One archive recorded it, so nothing about it can be cross-checked.
The record
- date
- 20 July 1991 (day precision)
- place
- Callington
Cornwall
England - crop
- not recorded by any source
- size
- not recorded
- recorded by
- cc
- images
- 1 · 1 diagram
- 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
- 50.503112, -4.315796
- 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
1 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 (1)
| site | kind | credit | basis | caption | size | file | source page |
|---|---|---|---|---|---|---|---|
| cc | diagram | cropcirclecenter.com / Bertold Zugelder | site default | 575×415 36.6 KiB image/jpeg |
image 256fe5b4434c | https://www.cropcirclecenter.com/date/1991/199107.html |
Date
20 July 1991, to day precision. What a source records is the day a formation was found and reported.
- reported by
- cc: 20 July 1991
- weekday
- Saturday, day 201 of the year, ISO week 29, summer
- sun and moon
- 28.6 days after the June solstice; moon waxing gibbous (68% lit), 6.3 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
- 50.503112, -4.315796 — 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 | Cornwall | England | 50.503112, -4.315796 place / os_open_names |
Crop and size
crop and size not recorded by any source
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 | UK19910720_B |
| name | Callington |
| location | |
| county | Cornwall |
| country | England |
| date reported | 1991-07-20 |
| date precision | day |
| crop | |
| size | |
| diameter (ft) | |
| grid reference | |
| what3words | |
| map link | |
| credits | cropcirclecenter.com / Bertold Zugelder |
| source page | https://www.cropcirclecenter.com/date/1991/199107.html |
| link to the entity | singleton decided by none on 2026-09-11 |
| warnings | no_formation_page |
| record | cc/26a78977b5392… raw record view: /formation/cc/26a78977b5392f5cbe9d84d4ab21c955c7ac2f670de7adb257516d06bdceb243 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
1 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 256fe5b4 | ≈ 2-fold score 0.995 | 1 | 1 | 0.98 | 0.1745 |
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 256fe5b4— 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
- Wellingborough 19 July 1991, Wellingborough
- next
- Heinzenhausen 21 July 1991, Heinzenhausen
- previous in UK
- Wellingborough 19 July 1991
- next in UK
- Pycombe 22 July 1991
- same day
- Marburg (Marburg) · Callington (Callington) · Sparsholt (Sparsholt) · UK19910720_D (Wiltshire)
- within 7 days and 25 km
- Callington 20 July 1991, 0 m away, 0 day(s) apart · Callington 27 July 1991, 0 m away, 7 day(s) apart
In place
The nearest formations the archive can place.
Callington
0 m away, 1990-08-09 Callington9 August 1990
Callington
0 m away, 1990-08-09
Callington4 July 1991Callington
0 m away, 1991-07-04
Callington4 July 1991Callington
0 m away, 1991-07-04 Callington20 July 1991
Callington
0 m away, 1991-07-20 Callington27 July 1991
Callington
0 m away, 1991-07-27
- same county and year
- Callington 4 July 1991 · Callington 4 July 1991 · Callington 20 July 1991 · Callington 27 July 1991 · Callington August 1991 · Callington August 1991
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/UK19910720_B.json · row in index/manifest.jsonl
- input digests
- entity d6ccc7ff1c91 · images 5dde884f0fb0 · texts 4f53cda18c2b · geo ca4fc87403fe