Barbury Castle
UK19970420_A20 April 1997·Barbury Castle, Wiltshire·oilseed rape
Possibly the same formation as: these cross-site pairs are still open in the index review queue.
-
Barbury Castle (Barbury Castle)(lp, tier C, score 0.75, rule adjacent_day, pair c98b29ee)
date 1997-04-20 vs 1997-04-19 (delta +1 d); name tokens shared: barbury, castle; county Wiltshire == Wiltshire; country UK (cc_id) == UK (country_field)
Reported 20 April 1997 in oilseed rape at Barbury Castle, Wiltshire. One archive recorded it, so nothing about it can be cross-checked.
The record
- date
- 20 April 1997 (day precision)
- place
- Barbury Castle
Wiltshire
England - crop
- oilseed rape
- size
- 180 ft (54.9 m) across
as written: 55 m | 180 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
- 51.485268, -1.786046
- 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 52.6 KiB image/jpeg |
image e6eec9d491d0 | https://www.cropcirclecenter.com/date/1997/199704.html |
Date
20 April 1997, to day precision. What a source records is the day a formation was found and reported.
- reported by
- cc: 20 April 1997
- weekday
- Sunday, day 110 of the year, ISO week 16, spring
- sun and moon
- 30.9 days after the March equinox; moon waxing gibbous (95% lit), 2.4 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
- 51.485268, -1.786046 — 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 | 51.485268, -1.786046 place / os_open_names |
Crop and size
- crop
- oilseed rape (cc: oilseed rape)
- diameter
- 180 ft (54.9 m)
- size as written
- 55 m | 180 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 | UK19970420_A |
| name | Barbury Castle |
| location | |
| county | Wiltshire |
| country | England |
| date reported | 1997-04-20 |
| date precision | day |
| crop | oilseed rape |
| size | 55 m | 180 ft |
| diameter (ft) | 180 |
| grid reference | |
| what3words | |
| map link | |
| credits | cropcirclecenter.com / Bertold Zugelder |
| source page | https://www.cropcirclecenter.com/date/1997/199704.html |
| link to the entity | singleton decided by none on 2026-09-11 |
| warnings | no_formation_page |
| record | cc/1b1cbf0122b0a… raw record view: /formation/cc/1b1cbf0122b0ad89f2bad8bf0e31ab497aaaf57394a48ec03e09e7a0d41be5cb 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 e6eec9d4 | ≈ 6-fold score 0.896 | 2 | 2 | 0.827 | 0.5504 |
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 e6eec9d4— 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
- Barbury Castle 19 April 1997, Barbury Castle
- next
- Littlebury Greene 22 April 1997, Littlebury Greene
- previous in UK
- Barbury Castle 19 April 1997
- next in UK
- Littlebury Greene 22 April 1997
- 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.
Barbury Castle17 July 1991Barbury Castle
0 m away, 1991-07-17
Barbury Castle1 May 1994Barbury Castle
0 m away, 1994-05-01
Barbury Castle29 May 1994Barbury Castle
0 m away, 1994-05-29
Barbury Castle7 July 1994Barbury Castle
0 m away, 1994-07-07
Barbury Castle15 July 1994Barbury Castle
0 m away, 1994-07-15
Barbury Castle6 May 1997Barbury Castle
0 m away, 1997-05-06
- same county and year
- Alton Barnes 27 March 1997 · Alton Barnes 27 March 1997 · Alton Barnes 27 March 1997 · Littlebury Greene 22 April 1997 · Barbury Castle 6 May 1997 · Barbury Castle May 1997 · Silbury Hill May 1997 · Winterbourne Bassett 1 June 1997 · Fox Hill 8 June 1997 · Stonehenge 9 June 1997 · Hackpen Hill 11 June 1997 · Marlborough 14 June 1997 · Rockley Down 14 June 1997 · Hinton Parva 16 June 1997 · Charlton 29 June 1997 · Bishops Waltham 9 July 1997 · Alton Barnes 11 July 1997 · Woodborough Hill 11 July 1997 · Bishops Cannings 13 July 1997 · Cley Hill 13 July 1997 and 42 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
- c98b29ee8d69d376f085d48c2905d57fb757c59988ddfb6709c108ecf05c519a
- entity record
- index/formations/UK19970420_A.json · row in index/manifest.jsonl
- input digests
- entity a1107fb1b58c · images b6d9dac1c2b7 · texts 4f53cda18c2b · geo b67b546cdc69