Silbury Hill
UK19890733_BJuly 1989·Silbury Hill, Wiltshire
Reported July 1989 at Silbury Hill, Wiltshire. One archive recorded it, so nothing about it can be cross-checked.
The record
- date
- July 1989 (month precision)
- place
- Silbury Hill
Wiltshire
Scotland - 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
- 51.415755, -1.857405
- 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 34.4 KiB image/jpeg |
image a8ec2e001319 | https://www.cropcirclecenter.com/date/1989/198907.html |
Date
July 1989, to month precision. What a source records is the day a formation was found and reported.
- reported by
- cc: July 1989
- additions
- 1989-07-15 (cropcirclecenter “addition” entries)
Place
What each source printed, and the coordinate derived from it. No source in this archive publishes a coordinate of its own.
- coordinate
- 51.415755, -1.857405 — 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 | Scotland | 51.415755, -1.857405 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 | UK19890733_B |
| name | Silbury Hill |
| location | |
| county | Wiltshire |
| country | Scotland |
| date reported | 1989-07 |
| date precision | month |
| crop | |
| size | |
| diameter (ft) | |
| grid reference | |
| what3words | |
| map link | |
| credits | cropcirclecenter.com / Bertold Zugelder |
| source page | https://www.cropcirclecenter.com/date/1989/198907.html |
| link to the entity | singleton decided by none on 2026-09-11 |
| warnings | unknown_day; no_formation_page |
| record | cc/707aefc55d2de… raw record view: /formation/cc/707aefc55d2dee2e6d143dd350fd43cd15e8c56a9038cffa7986ecfab0a54bbe 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 a8ec2e00 | ≈ 2-fold score 0.912 | 10 | 0 | 0.982 | 0.0367 |
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 a8ec2e00— 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
- Silbury Hill 30 June 1989, Silbury Hill
- next
- Beckhampton 4 July 1989, Beckhampton
- previous in UK
- Silbury Hill 30 June 1989
- next in UK
- Beckhampton 4 July 1989
- same day
- Estevan (Estevan) · Dundee (Dundee) · Silbury Hill (Silbury Hill) · Tring (Tring) · UK19890733_E (Cornwall) · UK19890733_F (Dorset) · UK19890733_G · West Lavington (West Lavington) · Westbury (Westbury) · Westerton (Westerton)
- within 7 days and 25 km
- Silbury Hill 28 June 1989, 0 m away, 3 day(s) apart · Silbury Hill 29 June 1989, 0 m away, 2 day(s) apart · Silbury Hill 29 June 1989, 0 m away, 2 day(s) apart · Silbury Hill 29 June 1989, 0 m away, 2 day(s) apart · Silbury Hill 30 June 1989, 0 m away, 1 day(s) apart · Silbury Hill 30 June 1989, 0 m away, 1 day(s) apart · Silbury Hill July 1989, 0 m away · Beckhampton 29 June 1989, 1.2 km away, 2 day(s) apart · Beckhampton 29 June 1989, 1.2 km away, 2 day(s) apart · Beckhampton 4 July 1989, 1.2 km away, 3 day(s) apart · Beckhampton 7 July 1989, 1.2 km away, 6 day(s) apart · Beckhampton 4 July 1989, 1.2 km away, 3 day(s) apart · Lyneham 7 July 1989, 12.6 km away, 6 day(s) apart · West Lavington July 1989, 18.2 km away
In place
The nearest formations the archive can place.
Silbury Hill15 July 1988Silbury Hill
0 m away, 1988-07-15
Silbury Hill26 July 1988Silbury Hill
0 m away, 1988-07-26
Silbury Hill30 July 1988Silbury Hill
0 m away, 1988-07-30
Silbury Hill10 May 1989Silbury Hill
0 m away, 1989-05-10
Silbury Hill23 June 1989Silbury Hill
0 m away, 1989-06-23
Silbury Hill28 June 1989Silbury Hill
0 m away, 1989-06-28
- same county and year
- Killeen Mor 9 August 1989 · Killeen Mor 9 August 1989 · Avebury Trusloe 10 May 1989 · Avebury Trusloe 10 May 1989 · Silbury Hill 10 May 1989 · Heytesbury 15 May 1989 · Beckhampton 17 May 1989 · Beckhampton 17 May 1989 · Beckhampton 28 May 1989 · Beckhampton 28 May 1989 · Whiteparish 28 May 1989 · Avebury Trusloe 29 May 1989 · Bratton 29 May 1989 · Bratton 29 May 1989 · Scratchbury Hill 2 June 1989 · Calstone Wellington 3 June 1989 · Heytesbury 4 June 1989 · Heytesbury 4 June 1989 · Heytesbury 4 June 1989 · Heytesbury 4 June 1989 and 48 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/UK19890733_B.json · row in index/manifest.jsonl
- input digests
- entity 8c2189d7505b · images 9ccbe6661b05 · texts 4f53cda18c2b · geo 208d61221292