Alton Barnes
UK19910418_A18 April 1991·Alton Barnes, Wiltshire·barley
Reported 18 April 1991 in barley at Alton Barnes, Wiltshire. One archive recorded it, so nothing about it can be cross-checked.
The record
- date
- 18 April 1991 (day precision)
- place
- Alton Barnes
Wiltshire
England - crop
- barley
- size
- 23 ft (7.0 m) across
as written: 7 m | 23 ft - 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
- 51.357372, -1.850463
- 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 no diagram published by cropcirclecenter (plain circle placeholder) |
cropcirclecenter.com / Bertold Zugelder | site default | 575×415 32.4 KiB image/jpeg |
image c782665e5c68 | https://www.cropcirclecenter.com/date/1991/199104.html |
Date
18 April 1991, to day precision. What a source records is the day a formation was found and reported.
- reported by
- cc: 18 April 1991
- weekday
- Thursday, day 108 of the year, ISO week 16, spring
- sun and moon
- 28.4 days after the March equinox; moon waxing crescent (18% lit), 10.4 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
- 51.357372, -1.850463 — 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 | Wiltshire | England | 51.357372, -1.850463 place / os_open_names |
Crop and size
- crop
- barley (cc: barley)
- diameter
- 23 ft (7.0 m)
- size as written
- 7 m | 23 ft
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 | UK19910418_A |
| name | Alton Barnes |
| location | |
| county | Wiltshire |
| country | England |
| date reported | 1991-04-18 |
| date precision | day |
| crop | barley |
| size | 7 m | 23 ft |
| diameter (ft) | 23 |
| grid reference | |
| what3words | |
| map link | |
| credits | cropcirclecenter.com / Bertold Zugelder |
| source page | https://www.cropcirclecenter.com/date/1991/199104.html |
| link to the entity | singleton decided by none on 2026-09-11 |
| warnings | date_unparsed; no_formation_page |
| record | cc/35536702142be… raw record view: /formation/cc/35536702142bebcc3f5e44ce083d0dab570e3286b40d419777b32966ca4c4941 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, of which 1 is a shared cropcirclecenter placeholder rather than a drawing of this formation. 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 c782665e (placeholder: digest) | ≈ continuous (concentric circles) | 1 | 1 | 0.996 | 1.0049 |
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 c782665e— 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
- Aikawa 15 April 1991, Aikawa
- next
- Mardon Cowbag May 1991, Mardon Cowbag
- previous in UK
- UK19911333_Y 1991
- next in UK
- Mardon Cowbag May 1991
- same day
- no other formation is dated this day
- within 7 days and 25 km
- none, or this formation has no coordinate at place confidence or better
In place
The nearest formations the archive can place.
Alton Barnes
0 m away, 1970
Alton Barnes10 September 1988Alton Barnes
0 m away, 1988-09-10
Alton Barnes12 July 1990Alton Barnes
0 m away, 1990-07-12
Alton BarnesAugust 1990Alton Barnes
0 m away, 1990-08
Alton Barnes2 July 1991Alton Barnes
0 m away, 1991-07-02
Alton Barnes5 July 1991Alton Barnes
0 m away, 1991-07-05
- same county and year
- Alton Barnes April 1991 · Mardon Cowbag May 1991 · Yarnbury Castle 13 May 1991 · Marden 27 May 1991 · Whiteparish 27 May 1991 · Whiteparish 27 May 1991 · Whiteparish 27 May 1991 · Avebury Trusloe 9 June 1991 · Avebury Trusloe 14 June 1991 · Avebury Trusloe June 1991 · Beckhampton 18 June 1991 · Stonehenge 18 June 1991 · Beckhampton 20 June 1991 · Lockeridge 21 June 1991 · Avebury Trusloe 22 June 1991 · Blackland 28 June 1991 · Morgans Hill 28 June 1991 · Roundway Devizes 28 June 1991 · Lurkeley Hill 29 June 1991 · Furze Knoll June 1991 and 67 more
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/UK19910418_A.json · row in index/manifest.jsonl
- input digests
- entity 864dad0749ae · images afe2570b1c43 · texts 4f53cda18c2b · geo 0b7280607f6e